| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528361000 | From ether, metal alcoholate, or alcohol group-containing carboxylic acid; or from a derivative of a carboxylic acid which derivative contains an ether, metal alcoholate, or alcohol group | 77 |
| 20080207870 | Thermostable Biopolyester - A biopolyester which is poly(3-hydroxyalkanoate) or poly(3-hydroxyalkanoate) copolymer and has a reduced calcium content. It has improved thermal stability due to the reduced calcium content. | 08-28-2008 |
| 20080207871 | Preparations containing hyperbrached polymers - The present invention relates to preparations comprising at least one low molecular weight substance and at least one hyperbranched polymer, wherein the hyperbranched polymer comprises a hydrophilic core having polyester units and hydrophobic end groups, said hyperbranched polymer having a molecular weight greater than or equal to 6000 g/mol and a hydroxyl number in the range from 0 to 200 mg KOH/g, the degree of branching being in the range from 20 to 70%, and said hyperbranched polymer having a melting point of at least 30° C. | 08-28-2008 |
| 20080234460 | Fluorine-Containing Polymerizable Monomer and Polymer Compound Using Same - Disclosed is a fluorine-containing polymerizable monomer represented by the formula [1] below. (In the formula, A represents a single bond, an oxygen atom, a sulfur atom, CO, CH | 09-25-2008 |
| 20080293913 | PROCESS TO PRODUCE POLYOLS - A process for producing oleochemical polyols comprises the steps of epoxidizing unsaturated oil using an organic acid together with oxygenated water or a per-acid to obtain epoxidized oil; washing the epoxidized oil with salt water to remove unused organic acid together with oxygenated water or a per-acid; neutralizing acidic condition of the washed epoxidized oil with a base; washing the neutralized epoxidized oil with a salt solution until the pH of the neutralized epoxidized oil reaching 6.5 to 7.5 to removed the base residue; drying the washed neutralized epoxidized oil under vacuum; and reacting the washed neutralized dried epoxidized oil with polyhydric alcohol in the presence of boron trifluoride-diethylether complex to produce the oleochemical polyols. The oleochemical polyols are then subjected to the same washing, neutralizing, washing and drying process as in preparing the washed neutralized dried epoxidized oil. | 11-27-2008 |
| 20090118462 | Process for Producing Polyglycolic Acid Resin Composition - A particulate polyglycolic acid resin composition suitable as a material for various forming processes in produced through a process characterized by comprising: cooling a polyglycolic acid resin composition having a residual glycolide content of at most 0.6 wt. % in a molten state by contact with an aqueous cooling medium to solidify the composition, and pelletizing the composition. | 05-07-2009 |
| 20090209727 | Process for the production of a material that is degradable in a natural environment with a renewable carbon base - A process for the production of a polyhydroxycarboxylic acid that is loaded with plant meals, includes the following stages:
| 08-20-2009 |
| 20090326186 | MESOGEN CONTAINING COMPOUNDS - Compounds including at least one mesogenic substructure and at least one long flexible segment and methods of synthesizing the same are disclosed. Formulations which include various embodiments of the mesogen containing compounds and their use in articles of manufacture and ophthalmic devices are also disclosed. | 12-31-2009 |
| 20100016544 | SINGLE SOLVENT POLYMER EXTRACTION METHODS - This invention relates to single solvent polymer extraction methods. | 01-21-2010 |
| 20100087619 | Oxygen-Absorbing Resin, Oxygen-Absorbing Resin Composition and Oxygen-Absorbing Container - Disclosed is an oxygen-absorbing resin which exhibits excellent oxygen absorption performance even in the absence of a transition metal catalyst. Specifically disclosed is an oxygen-absorbing resin which is composed of a copolyester obtained by copolymerizing at least the following monomers (A)-(C). Monomer (A): a dicarboxylic acid or a derivative thereof having a carbon atom bonded to both the structures (a) and (b) below and also bonded to one or two hydrogen atoms, wherein the carbon atom is contained in an alicyclic structure (a) a carbon-carbon double bond group (b) any one of a functional group containing a heteroatom or a linking group derived from such a functional group, a carbon-carbon double bond group and an aromatic ring Monomer (B): at least one selected from the group'consisting of a dicarboxylic acid having an aromatic ring or a derivative thereof, and a hydroxycarboxylic acid having an aromatic ring or a derivative thereof Monomer (C): a diol | 04-08-2010 |
| 20100099841 | Nail polish - This invention provides a kind of nail polish that has Amorphous Poly Lactic Acid resin extracted from plants as the basic material. Because the nail polish's basic material is Amorphous Poly Lactic Acid resin refined from plant material, it is bio-degradable, making it a more environmentally friendly nail polish basic material. | 04-22-2010 |
| 20100197885 | POLYMER EXTRACTION METHODS - A method of separating a polymer from a biomass containing the polymer, includes contacting the biomass with a solvent system, the solvent system including a solvent for the polymer and a precipitant for the polymer, to provide a residual biomass and a solution that includes the polymer, the solvent for the polymer and the precipitant for the polymer; and applying a centrifugal force to the solution and residual biomass to separate at least some of the solution from the residual biomass; where, the polymer is a polyhydroxyalkanoate; the precipitant comprises at least one alkane; the solvent for the polymer is selected from the group consisting of ketones, esters and alcohols and combinations thereof; and the biomass comprises a slurry of the biomass and water. | 08-05-2010 |
| 20100204435 | 12-HYDROXSTEARIC ACID COPOLYMER AND METHOD FOR PRODUCING THE SAME - Manufacture, at a high yield, a new, biodegradable 12-hydroxy acid copolymer being a non-petroleum material and contributing to prevention of environmental pollution and global warming, from materials that include 12-hydroxystearic acid or derivative thereof obtained by hydrogenating ricinoleic acid which in turn is obtained from castor oil, as well as long-chain hydroxy acid that can be synthesized from plant-based seed oil, by using an immobilized lipase as a catalyst. | 08-12-2010 |
| 20100222545 | COPOLYMER COMPRISING 4-HYDROXYBUTYRATE UNIT AND LACTATE UNIT AND ITS MANUFACTURING METHOD - The present invention relates to a copolymer comprising 4-hydroxybutyrate monomer unit and lactate monomer unit, a copolymer 4-hydroxybutyrate monomer unit, lactate monomer unit and 3-hydroxyalkanoate, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer; 4-hydroxybutyrate monomer; and optionally 3-hydroxyalkanoate, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, phosphotransbutylase gene, butyrate kinase gene and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used for medical use. | 09-02-2010 |
| 20100240860 | NATURAL OIL-DERIVED POLYESTER POLYOLS AND POLYURETHANES MADE THEREFROM - A polyester polyol made from natural oil feedstocks is disclosed. Methods for making the polyol are also disclosed. The method comprises reacting monohydroxylated fatty acid/alkyl esters with a multifunctional ester-reactive initiator compound to form the polyester polyol. In one embodiment, the monohydroxylated fatty acid/alkyl esters are made by hydroxylating fatty acid/alkyl esters having greater than about ninety-five percent by weight monounsaturation. | 09-23-2010 |
| 20100249365 | Polymerizable compositions - The present invention relates to a process for providing improved polymerizable compositions containing phosphoalkyl (meth)acrylate monomers which are synthesized by the reaction of a hydroxy alkyl (meth)acrylate with polyphosphoric acid (PPA). | 09-30-2010 |
| 20100267924 | Phosphorus-Containing Compounds with Polymeric Chains, and Methods of Making and Using the Same - The present invention relates to novel phosphorus-containing compounds with polymeric chains, and methods of making and using the same. In part, subject compositions containing phosphorus-containing compounds with polymeric chains and a therapeutic agent, and methods of making and using the same, are described. Certain of the subject compositions exhibit reverse thermal gelation. | 10-21-2010 |
| 20100267925 | NATURAL OIL-DERIVED POLYESTER POLYOLS AND POLYURETHANES MADE THEREFROM - A polyester polyol made from natural oil feedstocks is disclosed. Methods for making the polyol are also disclosed. The method comprises reacting hydroxylated fatty acid/alkyl esters with a multifunctional ester-reactive initiator compound to form the polyester polyol. In one embodiment, the hydroxylated fatty acid/alkyl esters are made by hydroxylating fatty acid/alkyl esters having up to ninety-five percent by weight monounsaturation. | 10-21-2010 |
| 20100317824 | POLYETHER DERIVATIVES OF SECONDARY HYDROXY FATTY ACIDS AND DERIVATIVES THEREOF - A compound that is a polyether of a saturated monobasic secondary hydroxyl fatty acid, preferably 12-hydroxy stearate, or a reaction product of the polyether with a polyhydric alcohol, a capping agent or a combination of both. Prepare the compound by contacting a saturated hydroxy monobasic fatty acid or derivative thereof with an alkoxide in the presence of a double metal cyanide catalyst such that a polyether of the fatty acid is formed. Optionally, preparation also includes a step of capping the polyether, or alternatively, contacting the polyether with a polyhydric alcohol. | 12-16-2010 |
| 20110046339 | COPOLYMER CONTAINING 3-HYDROXYALKANOATE UNIT AND LACTATE UNIT, AND ITS MANUFACTURING METHOD - The present invention relates to a copolymer comprising 3-hydroxyalkanoate monomer unit and lactate monomer unit, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer and 3-hydroxyalkanoate monomer, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used also for medical use. | 02-24-2011 |
| 20110060118 | PROCESS FOR THE SYNTHESIS OF FLUORINATED ETHERS OF AROMATIC ACIDS - Fluorinated ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and a Schiff base ligand that coordinates to copper. The fluorinated ethers of aromatic acids made using the process described herein can be applied to, e.g., fibers, yarns, carpets, garments, films, molded parts, paper and cardboard, stone, and tile to impart soil, water and oil resistance. By incorporating the fluorinated ethers of aromatic acids, or diesters thereof, into polymer backbones, more lasting soil, water and oil resistance, as well as improved flame retardance, can be achieved. | 03-10-2011 |
| 20110082277 | MODIFIED BIO-RELATED SUBSTANCE, PROCESS FOR PRODUCING THE SAME, AND INTERMEDIATE - A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: | 04-07-2011 |
| 20110112274 | METHOD FOR ISOLATING POLYHYDROXYL ALKANOATES - The invention relates to a method for isolating polyhydroxyalkanoates from production cells which comprises
| 05-12-2011 |
| 20110118433 | CANDIDA TROPICALIS CELLS AND USE THEREOF - The invention relates to genetically engineered | 05-19-2011 |
| 20110118434 | METHOD FOR POLYMERISING GLYCOLIC ACID WITH MICROORGANISMS - The present invention relates to a method for producing and preparing polyglycolate (PGA) from genetically engineered organisms. More specifically, the invention relates to a method comprising two steps; 1) culturing, in a medium containing glycolic acid or not, the microorganism expressing at least one gene encoding an enzyme(s) that converts glycolate into glycolyl-CoA, and a gene encoding polyhydroxyalkanoate (PHA) synthase which uses glycolyl-CoA as a substrate, 2) recovering the polyglycolate polymer. | 05-19-2011 |
| 20110124838 | METHOD FOR PRODUCTION TONER, TONER, AND METHOD FOR RECYCLING PAPER - The present invention provides a method for producing a toner, which includes 1) saccharifying paper by at least one of a chemical degradation method and a biochemical degradation method to obtain a sugar-containing solution, 2) subjecting the sugar-containing solution obtained through 1) to lactic acid fermentation to obtain a lactic acid, 3) polymerizing the lactic acid obtained through 2) to obtain a polylactic acid, and 4) producing a toner using the polylactic acid obtained through 3). | 05-26-2011 |
| 20110152496 | ACID-LABILE POLYMERS AND MONOMERS FOR THEIR CONSTRUCTION - Polymers for photoresists and monomers for incorporation into those polymers are disclosed. The polymers comprise at least two components: an acid labile component and a photolytically stable and acid-stable component. The polymers may also contain a third, photoacid generator (PAG) component. | 06-23-2011 |
| 20110160427 | METHOD OF EXTRACTING AND PURIFYING POLYHYDROXYALKANOATE BIOPLASTIC - Polyhydroxyalkanoates (PHA) is an intracellular polymer that is biologically synthesized by microorganisms as carbon and energy reserve material. This biodegradable material has properties similar to petrochemical based thermoplastics. Currently methods of PHA extraction and purification from bacterial suspension use solvent or halogenated-based approaches which are costly and pose severe environmental damage. This invention describes a combined treatment of alkaline and homogenization for extracting and purifying PHA, with higher PHA purity and recovery. | 06-30-2011 |
| 20110166318 | Medium Chain Length Polyhydroxyalkanoate Polymer and Method of Making Same - A method is provided for producing medium chain length poly(3-hydroxyalkanoate) (MCL-PHA) with a selected ratio of monomers. A method of controlling the ratio of monomers in MCL-PHA is also provided which includes fermenting naturally occurring microorganisms with a fatty acid substrate, a food source and an additive. The methods provided do not sacrifice cell growth and maintenance and provide high yields of MCL-PHAs. MCL-PHAs are provided that are copolymers of C | 07-07-2011 |
| 20110178267 | Novel organic materials and methods for obtaining thereof - Methods for obtaining Tamaritt and Tamaritt-Intermediate based materials are implemented through a secondary chemical reactor providing a second chemical reaction conducted with at least two reactants. The first reactant is Tamaritt and the second is an inorganic, or organic, or bio-molecular reagent, or their combination. Tamaritt is produced in a primary chemical reactor, modulating chemical reactions, preferably using a plasma device, and producing certain byproducts. A solid organic dye is dissolved in water producing a solution placed into the primary reactor, wherein the temperature and pressure are predeterminedly adjusted. The byproducts are injected into the solution, thereby commencing a first chemical reaction conducted until it finally results in obtaining Tamaritt. Tamaritt-Intermediate byproducts, being bond-altering catalyst-reagents, are obtained at a certain stage of the process. The resulted Tamaritt-Intermediate byproducts can act as separate agents or, in combinations, can participate in novel reactions with organic solutions producing distinct and useful materials. | 07-21-2011 |
| 20110190470 | SYNTHESIS OF POLYESTERS WITH PRECISELY SEQUENCED TWO OR MORE STRUCTURAL UNITS - The present invention related to compositions and methods of producing polyesters with two and/or more different structural units and the materials of polyesters with structure sequence exactly specified therefore produced, and various articles produced from such exactly sequenced polyesters. More particularly, homogeneous copolymers with precisely defined sequences of various hydroxyl acids and their derivatives are produced according to the present invention. | 08-04-2011 |
| 20110224401 | APPARATUS FOR SEPARATION BY DISTILLATION - The invention relates to an apparatus for separating a liquid substance mixture by distillation, a method for producing a tetrahydrofuran homopolymer and copolymer in which the oligomers in a liquid starting mixture containing oligomers are separated by distillation in such an apparatus, tetrahydrofuran homopolymers and copolymers which can be obtained using said method and have a narrow distribution of the relative molar mass, and the use thereof. | 09-15-2011 |
| 20110245456 | BIODEGRADABLE POLYMER MICROPARTICLES AND PREPARATION METHOD THEREOF - The present invention relates to a preparation method for a biodegradable polymer microparticle and a microparticle prepared by the method. More particularly, the present invention relates to a method for preparing a polymer microparticle, wherein the method includes the steps of: dissolving a biodegradable polyester-based polymer in DMSO (Dimethyl Sulfoxide); spraying the solution in a low temperature hydrocarbon solution to provide a frozen DMSO microparticle; adding the microparticle in a low temperature salt aqueous solution to dissolve DMSO; and removing salt. The present invention provides a method for preparing a novel polymer microsphere which can be injected through a syringe due to excellent physical properties (such as biocompatibility, biodegradability, porosity, mechanical strength) and the microcarrier's size-adjustability, and can be easily mass-produced. The microparticle prepared by the method of the present invention may have variable sizes with biodegradability and biocompatibility, and thus can be used as a carrier for regeneration of a damaged cell or tissue by being injected into a body through a syringe. | 10-06-2011 |
| 20110301325 | Preparation of PHA (Polyhydroxyalkanoates) From a Citric Residue - The present invention relates to an obtainment process of biodegradable polymers from a citric residue resulting from the processing of orange juice. The polymers obtained are polyesters classified as polyhydroxyalkanoates including, among them the poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate). The biodegradable polymer is obtained from the batch culture process or fed batch culture process with or without recirculation of the cells, using as a carbon source the pre-treated pressing liquor and/or the citric molasses. The polyhydroxyalkanoates, herein described, can be used as substitutes of the synthetic polyesters in different areas, including the food, pharmaceutical, medical, agricultural and other areas. | 12-08-2011 |
| 20120035343 | Method for Functionalization of Nanoscale Fibers and Nanoscale Fiber Films - A method is provided for functionalizing nanoscale fibers including reacting a plurality of nanoscale fibers with at least one epoxide monomer to chemically bond the at least one epoxide monomer to surfaces of the nanoscale fibers to form functionalized nanoscale fibers. Functionalized nanoscale fibers and nanoscale fiber films are also provided. | 02-09-2012 |
| 20120136135 | THERMOSTABLE BIOPOLYESTER - A biopolyester which is poly(3-hydroxyalkanoate) or poly(3-hydroxyalkanoate) copolymer and has a reduced calcium content. It has improved thermal stability due to the reduced calcium content. | 05-31-2012 |
| 20120165499 | POLYMER, METHOD FOR PRODUCING THE SAME, AND RESIST COMPOSITION CONTAINING THE SAME - Provided is a copolymer containing a repeating unit represented by the following formula (1): | 06-28-2012 |
| 20120165500 | PROCESS FOR THE PRODUCTION OF POLYHYDROXYALKANOATES - Embodiments of the invention relate generally to processes for the production and processing of polyhydroxyalkanoates (PHA) from carbon sources. In several embodiments, PHAs are produced at high efficiencies from carbon-containing gases through the utilization of a regenerative polymerization system. | 06-28-2012 |
| 20120309930 | CATIONICALLY POLYMERIZABLE RESIN, CATIONICALLY POLYMERIZABLE RESIN COMPOSITION, AND CURED PRODUCTS THEREOF - Provided is a cationically polymerizable resin which is rapidly cured upon irradiation with light and forms a cured product excellent in flexibility and thermal stability. The cationically polymerizable resin is obtained through radical polymerization of an oxetane-ring-containing (meth)acryloyl compound represented by following Formula (1) alone or in combination with another radically polymerizable compound. In the formula, R | 12-06-2012 |
| 20130116400 | POLYCONDENSATION OF LACTIC ACID FOR MEDICAL BIODEGRADABLE POLYLACTIC ACID CATALYZED BY CREATININE - The present invention provides a direct polycondensation method for medical biodegradable polylactic acid (PLA) using creatinine catalyzed lactic acid. The invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85-90%, aqueous solution) as the monomer to synthesize the high biosafety of medical PLA in terms of second polycondensation without solvent (identity). Instead of tin catalysts having cytotoxicity, the catalyst used in the invention has high biocompatibility and biosafety. The synthesized PLA does not contain any metal and other toxic components; therefore, it can be used as the carrier for targeting drugs and controlled release drugs. In addition, the green catalyst and green processing method (no solvent applied and no toxic products produced) are used in the invention to synthesize the green biodegradable PLA with high biosafety. The polymerization reaction is simple and the raw materials required are low in costs, thus it is easy for industrialization. Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.5-3.0×10 | 05-09-2013 |
| 20130137847 | POLY(DIHYDROFERULIC ACID) A BIORENEWABLE POLYETHYLENE TEREPHTHALATE MIMIC DERIVED FROM LIGNIN AND ACETIC ACID AND COPOLYMERS THEREOF - An embodiment of the invention is directed to a biorenewable thermoplastic, poly(dihydroferulic acid) (PHFA), which is an effective polyethylene terephthalate (PET) mimic. In another embodiment of the invention, a biorenewable thermoplastic copolymer, poly(dihydroferulic acid-co-ferulic acid) is an effective polystyrene mimic. The PHFA and the copolymer can be prepared by the homocondensation of acetyldihydroferulic acid or the copolymerization of acetyldihydroferulic acid with acetylferulic acid, which are monomers that can be synthesized from starting materials isolated from lignin, rice bran, or other biorenewable sources. | 05-30-2013 |
| 20130172522 | EPOXY COMPOUND WITH NITROGEN-CONTAINING RING - There is provided an epoxy compound that provides properties of cured products combining high transparency with high flexural strength by being thermally cured while maintaining advantageous handling properties in a liquid state thereof. An epoxy compound of Formula (1): | 07-04-2013 |
| 20130197186 | PROCESS FOR PRODUCTION OF POLY(LACTIC ACID)-TYPE RESIN, AND POLY(LACTIC ACID)-TYPE PREPOLYMER - A method of producing a poly(lactic acid) resin includes carrying out direct polycondensation using lactic acid as a main raw material to prepare a crystallized prepolymer having a weight average molecular weight of 5,000 to 25,000, an enthalpy of fusion ΔHm of 50 to 65 J/g and an acid value A mol/ton satisfying (1) below: | 08-01-2013 |
| 20130225787 | PROCESS FOR MANUFACTURING LACTIC ACID - A process for the preparation of lactic acid includes: | 08-29-2013 |
| 20130267675 | PROCESS FOR PRODUCING POLYLACTIC ACID AND REACTORS FOR USE IN SAID PROCESS - A process is described for producing a high molar mass polylactic acid, which comprises the following steps: a) polycondensation in a reactor (R | 10-10-2013 |
| 20140051825 | POLYMERIC PIEZOELECTRIC MATERIAL, AND PROCESS FOR PRODUCING THE SAME - The invention provides a polymeric piezoelectric material including a helical chiral polymer having a weight-average molecular weight of from 50,000 to 1,000,000 and having optical activity, wherein a crystallinity of the material measured by a DSC method is from 20% to 80%, and a product of a standardized molecular orientation MORc measured by a microwave transmission type molecular orientation meter based on a reference thickness of 50 μm and the crystallinity is from 25 to 250. | 02-20-2014 |
| 20140088288 | BIODEGRADABLE POLYESTER FIBER HAVING EXCELLENT THERMAL STABILITY AND STRENGTH, AND METHOD FOR PRODUCING SAME - The present invention aims to provide biodegradable polyester fibers excellent in thermal stability and fiber strength. Another aim is to provide a method for producing biodegradable polyester fibers excellent in mechanical properties, particularly in thermal stability. The present invention relates to biodegradable polyester fibers comprising a poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) that has a 3HH molar fraction of 2 to 9 mol %. The present invention also relates to a method for producing the biodegradable polyester fibers, comprising a fiber forming step of melt-extruding a poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) to form fibers at a temperature higher than or equal to the glass transition temperature of the poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) but not higher than 70° C. | 03-27-2014 |
| 20140142275 | POLY(LACTIC-CO-GLYCOLIC ACID) SYNTHESIZED VIA COPOLYCONDENSATION CATALYZED BY BIOMASS CREATININE - A method for synthesizing a medical grade biodegradable material, poly(lactic-co-glycolic acid), copolycondensation of lactic acid and glycolic acid catalyzed by biomass creatinine. The present invention uses commercialized creatinine (a type of biomaterial organic guanidine compounds—the arginine metabolite creatinine (CR) in human body) as the catalyst and industrial lactic acid (LA, mass content 85%, aqueous solution) and glycolic acid (GA, 95%) as the monomer to synthesize the high biosafety of medical poly(lactic-co-glycolic acid) in terms of two steps polycondensation without solvent. The method of the present invention has the following characters: green technology is used, raw materials required are low in costs, operation is simple and convenient, and it is easy for industrialization; the catalyst, creatinine, used in the invention has high biocompatibility and biosafety, and no cytotoxicity; the poly(lactic-co-glycolic acid) synthesized is free of any metal and other toxic residues; Further, the molecular weight distribution for all synthesized products is narrow and the molecular weight is controllable within 1.8-17.7×10 | 05-22-2014 |
| 20140142276 | POLYLACTIC ACID RESIN AND METHOD FOR PRODUCING SAME - The present invention is directed to a method for producing a polylactic acid resin, including the step of subjecting a crystallized prepolymer, which is a prepolymer including a lactic acid unit as a main component, and has an optical purity (Ea) of 60 to 94%, a weight average molecular weight of 5,000 to 100,000, and a crystal melting enthalpy (ΔHma) of 4 to 50 J/g, to solid phase polymerization. According to the present invention, it is possible to obtain a polylactic acid resin which is excellent in moldability upon melt processing and drawdown resistance upon melt processing, and is also excellent in hydrolysis resistance. | 05-22-2014 |
| 20140200327 | POLYOLS, PREPARATION AND USE THEREOF - The present invention relates to polyols and the preparation and use thereof. | 07-17-2014 |
| 20140256906 | GLYCIDYL ESTERS OF ALPHA, ALPHA BRANCHED ACIDS COMPOSITIONS - The invention relates to compositions of α,α-branched alkane carboxylic acids glycidyl esters with a define isomeric composition where the sum of the concentration of the blocked and of the highly branched isomers is at least 50%, preferably above 60% and most preferably above 75% on total composition. | 09-11-2014 |
| 20140275471 | ACTIVE POLYMER POLYOLS AND A PROCESS FOR THEIR PRODUCTION - Polymer polyols having a solids content of greater than 40 wt. %, a total ethylene oxide content of up to 25 wt. %, and a viscosity at 25° C. of less than 15,000 centistokes are produced by reacting (1) a base polyol having active hydrogen atoms with an ethylene oxide content of from 15 to 40 wt. % that has been formed in the presence of a double metal cyanide (DMC) catalyst, (2) one or more unsaturated monomers, (3) at least one radical initiator, optionally (4) a preformed stabilizer and optionally (5) a chain transfer agent. These polymer polyols (PMPOs) are useful in the preparation of polyurethane foams and elastomers. | 09-18-2014 |
| 20140378646 | UTILIZATION OF THE NOVEL, ENVIRONMENTAL ISOLATES PSEUDOMONAS sp. IPB-B26 AND N-128 FOR THE EFFICIENT HIGH YIELD PRODUCTION OF mcl/lcl-PHAs - The present application is directed at microorganisms of the genus | 12-25-2014 |
| 20140378647 | UTILIZATION OF THE NOVEL, ENVIRONMENTAL ISOLATE PSEUDOMONAS sp. IPB-A36 FOR THE EFFICIENT PRODUCTION OF mcl/lcl-PHAs and SPECIALTY-PHAs - The present application is directed at a microorganism of the genus | 12-25-2014 |
| 20150038669 | Process to Produce Polycarbamate Using a Gradient Feed of Urea - A process to produce polycarbamate comprising providing urea in liquid form; and adding the urea in liquid form to a polyol in a reduced gradient profile to form polycarbamate product is provided. Also provided are: (a) a reaction product of the process and (b) an apparatus for operating the process. | 02-05-2015 |
| 20150065682 | ALIPHATIC POLYESTERS AND COPOLYESTERS DERIVED FROM NATURAL OILS AND THEIR RELATED PHYSICAL PROPERTIES - The synthesis of certain medium and long chain ω-hydroxy esters and certain ω-hydroxy fatty acids is disclosed. Such ω-hydroxy esters and ω-hydroxy fatty acids are derived from natural oils, and their corresponding polymers were obtained by melt polycondensation. Additionally, the present effort investigates the effects of structural and molecular parameters on the thermal and mechanical properties of ω-hydroxy ester based polymers. Additionally, the present effort investigates the co-polymerization of ω-hydroxy ester based polymers. | 03-05-2015 |
| 20150087802 | METHOD FOR CONVERTING POLYETHYLENE TO BIODEGRADABLE POLYHYDROXYALKANOATE - A method for producing polyhydroxyalkanoate (PHA) comprises the steps of culturing in a culture medium comprising pyrolysis wax obtained from the pyrolysis of polyethylene and optionally a surfactant one or more bacterial strains which are capable of accumulating PHA from pyrolysis wax, and recovering the PHA from the culture medium. Typically, the bacterial strains are selected from the group consisting of: | 03-26-2015 |
| 20150105533 | USE OF POLYMER D-LACTIC ACID (PDLA) OR EQUIVALENTS THEREOF TO INHIBIT GROWTH OF CANCER CELLS AND DIAGNOSE CANCERS - The invention provides method for sequestering or trapping L-lactate in or near a tumor cell comprising contacting an isolated polymer of D-lactic acid (PDLA) or an equivalent, derivative or analog thereof with the tumor cell so that the PDLA binds L-lactate in or near the cell and thereby sequestering or trapping L-lactate in or near the tumor cells. | 04-16-2015 |
| 20150112041 | LACTIC ACID PRODUCTION METHOD - A method of producing lactic acid includes removing glycerol from an aqueous lactic acid solution containing glycerol as an impurity using an ion-exchange resin. The lactic acid can be separated simply and at low cost from an aqueous lactic acid solution containing glycerol as an impurity. | 04-23-2015 |
| 20150141614 | METHOD FOR PRODUCING POLYESTER RESIN - The present invention provides a method for producing a polyester resin comprising dicarboxylic acid units and diol units, wherein at least a portion of the diol units is a diol unit having a cyclic acetal skeleton, the method comprising specific steps (1) to (4-2). | 05-21-2015 |
| 20150361465 | METHODS, REAGENTS AND CELLS FOR BIOSYNTHESIZING COMPOUNDS - This document describes biochemical pathways for producing 7-hydroxyheptanoate methyl ester and heptanoic acid heptyl ester using one or more of a fatty acid O-methyltransferase, an alcohol O-acetyltransferase, and a monooxygenase, as well as recombinant hosts expressing one or more of such exogenous enzymes. 7-hydroxyheptanoate methyl esters and heptanoic acid heptyl esters can be enzymatically converted to pimelic acid, 7-aminoheptanoate, 7-hydroxyheptanoate, heptamethylenediamine, or 1,7-heptanediol. | 12-17-2015 |
| 20150361466 | METHODS, REAGENTS AND CELLS FOR BIOSYNTHESIZING COMPOUNDS - This document describes biochemical pathways for producing 6-hydroxyhexanoate methyl ester and hexanoic acid hexyl ester using one or more of a fatty acid O-methyltransferase, an alcohol O-acetyltransferase and a monooxygenase, as well as recombinant hosts expressing one or more of such enzymes. 6-hydroxyhexanoate methyl esters and hexanoic acid hexyl ester can be enzymatically converted to adipic acid, adipate semialdehyde, 6-aminohexanoate, 6-hydroxyhexanoate, hexamethylenediamine, and 1,6-hexanediol. | 12-17-2015 |
| 20160002493 | Synergistic Catalyst Combination for the Preparation of Radiation Curable Oligomers - Radiation curable coating compositions are disclosed. In some embodiments, the coating compositions are used to coat substrates such as packaging materials and the like for the storage of food and beverages. The coating compositions may have a (meth)acrylate functional polyether polyol prepared by reacting an epoxidized vegetable oil in the presence of a phosphoric acid compound to form an epoxy phosphate, and reacting the epoxy phosphate with a hydroxyl functional (meth)acrylatein the presence of an acid catalyst to form the(meth)acrylate functional polyether polyol. | 01-07-2016 |
| 20160046759 | ORGANIC VEGETABLE OIL BASED RESIN AND PREPARATION METHOD THEREOF - Disclosed are organic, UV resistant epoxy resins derived largely from vegetable oil based materials. More specifically, the present invention provides a virtually non-toxic, hypoallergenic UV resistant resin and method of producing and using the same that gives off substantially no VOCs and no disagreeable odors. The composition comprises a vegetable oil-based polyfunctional carboxylic acid, a cycloaliphatic anhydride, and an epoxy compound either of bicyclic difunctional epoxy resin, epoxidized vegetable oil or epoxidized polymer chains. The composition further comprises a catalyst and a wetting agent. In its cured state the material is leather like and exhibits high tensile strength as well as unusually high, totally reversible elongation. In an alternative embodiment, the resin comprises a cyclic anhydride (Lindride 16E). With increased amounts of cyclic anhydride, increased heat distortion temperature is exhibited; all while maintaining a high reversible elongation and high tensile strength In an additional alternative, an increased amount of Chromium III Octoate is used and in another alternative Phosphoric Acid. | 02-18-2016 |
| 20160060387 | GLYCOLIC ACID POLYMERS AND METHOD OF PRODUCING THE SAME - Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (M | 03-03-2016 |
| 20160060388 | PROCESS FOR PRODUCING A LACTIC ACID-GLYCOLIC ACID COPOLYMER OR A SALT THEREOF - Provided is a purified lactic acid-glycolic acid copolymer, preferably in the form of powder, having a reduced content of dimers such as residual lactide and glycolide that can be produced by a simple industrial process without the use of any high-shear special device. Further provided is a high-purity lactic acid-glycolic acid copolymer which has small amounts of dimers such as residual lactide and glycolide and small amounts of a low-molecular weight lactic acid-glycolic acid copolymer or a salt thereof and which has a small ratio of weight average molecular weight to number average molecular weight (Mw/Mn). The copolymer can be produced in accordance with a defined process. | 03-03-2016 |
| 20160068628 | METHOD FOR PRODUCING POLY-L-LACTIC ACID BY DIRECTLY POLYCONDENSATING L-LACTIC ACID - A method for producing high-molecular poly-L lactic acid by directly polycondensating L-lactic acid using a melt-phase condensation and a subsequent solid-phase condensation using acidic and supported solid catalysts. A method of using an acidic and supported solid catalyst for producing high-molecular poly-L lactic acid by directly polycondensating L-lactic acid, preferably supported and calcined zirconium sulfate is also disclosed. | 03-10-2016 |
| 20160122481 | POLYLACTIC RESIN COMPOSITION AND MOLDING - A polylactic resin composition, including: polylactic resin as main component, wherein in a binary image of the polylactic resin composition obtained by binarizing a phase image of a cross-section of the polylactic resin composition observed with an AFM in tapping mode based on intermediate value between maximum and minimum values of phase differences of the polylactic resin composition in free vibration, phases equal to or greater than intermediate value are dispersed in a phase less than intermediate value, and average equivalent circle diameter of the phases equal to or greater than intermediate value is from 0.2 μm to 1 μm, and wherein polylactic resin composition is detected to have at least one glass transition temperature (Tg) in a range of −20° C. or lower, and at least one glass transition temperature (Tg) in a range of 40° C. to 70° C. in a temperature elevating process of differential scanning calorimeter (DSC) measurement thereof. | 05-05-2016 |
| 20160130387 | FILM AND POLYMERIC PIEZOELECTRIC MATERIAL - A film having a molecular orientation; having an absolute difference ΔRe between the maximum and minimum retardations Re of 100 nm or less in a case wherein the retardations Re are measured at every 0.8 mm along a measured length of 10 mm centered at the center of a principal plane of the film and at a wavelength of 550 nm; and having an average Re (ave) of the retardations Re in a range of from 700 nm to 900 nm or in a range of from 1250 nm to 1450 nm. | 05-12-2016 |
| 20160130388 | CRYSTALLIZED POLYMER FILM AND METHOD FOR PRODUCING THE SAME - A crystallized polymer film including a polymer (A) that has a weight-average molecular weight of from 50,000 to 1,000,000 and a crystallization half time at the temperature at which the polymer crystallizes fastest in a range of from 180 seconds to 900 seconds; having a crystallinity of from 20% to 80% as obtained by a DSC method; and having a difference between a total haze and an internal haze of 0.8% or less in a case in which the total haze and the internal haze are measured at 25° C. in accordance with JIS-K7105. | 05-12-2016 |
| 20160168316 | METHOD FOR PREPARING HIGH MOLECULAR WEIGHT POLY-L-LACTIC ACID | 06-16-2016 |
| 20160168319 | PROCESS FOR RECOVERING AND PURIFYING POLYHYDROXYALKANOATES FROM A CELL CULTURE | 06-16-2016 |
| 20160177023 | CONTINUOUS PROCESS OF OLEFINIC EPOXIDATION BY SUPPORTED HETEROPOLY ACID | 06-23-2016 |
| 20160177033 | PROCESS TO PRODUCE POLYCARBAMATE USING A GRADIENT FEED OF UREA | 06-23-2016 |
| 20160185704 | LACTATE PRODUCTION PROCESS - A process for producing lactic acid is provided. The process comprises (a) reacting a stream rich in saccharide with sodium hydroxide in the presence of water to produce a reaction mixture comprising sodium lactate; (b) reacting at least a portion of the sodium lactate with HCl to produce lactic acid and sodium chloride; (c) converting at least a portion of the sodium chloride to chlorine and sodium hydroxide; and (d) recycling at least a portion of the sodium hydroxide produced in step (c) to step (a). Also provided are processes for the production of alkyl lactate, oligomeric lactic acid, lactide, alkyl lactyllactate, poly-lactic acid, propylene glycol and acrylic acid. | 06-30-2016 |
| 20160251474 | Process for producing polyhydroxyalkanoates from precursors obtained by anaerobic fermentation from fermentable biomass | 09-01-2016 |
| 20180022681 | A NOVEL PROCESS FOR THE PREPARATION OF HYDROXYL FUNCTIONAL ESTERS AND POLYESTERS THEREFROM | 01-25-2018 |
| 20220135736 | POLYESTER CARBONATE RESIN, AND MOLDED BODY WHICH IS OBTAINED BY MOLDING RESIN COMPOSITION CONTAINING RESIN - Provided is a polyester carbonate resin having a constituent unit (I) represented by the following general formula (1), a constituent unit (II) represented by the following general formula (2), and a constituent unit (III) represented by the following general formula (3): | 05-05-2022 |
