| Entries |
| Document | Title | Date |
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| 20080200629 | Proton-conducting polymer - A proton-conducting polymer comprises a main chain and a plurality of branched side chains extending radially therefrom. The branched side chains are each bonded to a proton-conducting salt at the end. In the proton-conducting polymer, the salts can be circumscribed by a virtual circle having a center on the cross-sectional center of the main chain such that a radial direction of the virtual circle is perpendicular to a longitudinal direction of the main chain. Thus, the proton-conducting polymer has a substantially cylindrical structure, and the salts are located on the peripheral wall of the substantially cylindrical structure. Protons are transferred between the adjacent salts, so that a conduction channel is formed on the peripheral wall of the cylindrical structure. | 08-21-2008 |
| 20080221292 | Method For Producing Vinyl Chloride-Vinyl Acetate Copolymers In The Form Of Their Solid Resins - The invention provides a process for preparing vinyl chloride-vinyl acetate copolymers in the form of their solid resins by means of free-radically initiated suspension polymerization in aqueous medium of 70% to 90% by weight of vinyl chloride, 10% to 30% by weight of vinyl acetate and, if desired, further comonomers copolymerizable therewith, characterized in that 0.1% to 5% by weight of a vinyl acetate-vinyl chloride copolymer soluble in ethyl acetate is introduced as an initial charge, the amounts in % by weight being based in each case on the total weight of the comonomers. | 09-11-2008 |
| 20080221293 | Polyalkylene Glycol Monomer, Polyalkylene Glycol Polymer Containing the Same, and Application Thereof - To provide: a monomer having a polyalkylene glycol chain preferably used in various industrial applications such as detergent builder compositions for clothes and bodies, water-treatment agents, and pigment dispersants; and a polyalkylene glycol polymer using such a monomer as a raw material. A polyalkylene glycol monomer having a polymerizable double bond and a polyalkylene glycol chain, wherein the polyalkylene glycol monomer has a hydrophobic part in the polyalkylene glycol chain and/or at a terminal of the chain, and the polymerizable double bond is derived from allyl glycidyl ether, and a polyalkylene glycol monomer having a monomer unit derived from the above-mentioned polyalkylene glycol monomer, wherein the polyalkylene glycol polymer is a polyalkylene glycol polymer having a carboxylic acid group and/or a sulfonic acid group. | 09-11-2008 |
| 20080242816 | Neutralization Process - The invention relates to a neutralization process in which at least one ethylenically unsaturated carboxylic acid is neutralized at least partly with a base and at least one stream of the neutralization is determined continuously, and also to an apparatus for carrying out the process. | 10-02-2008 |
| 20080242817 | Dropping Method for Liquids - In a process for dropletizing a liquid by means of a dropletizer plate at least the underside of the dropletizer plate has at least in part a contact angle of at least 60° with regard to the liquid to be dropletized. | 10-02-2008 |
| 20080249272 | Modification Process For Polymer Surfaces, Notably For Hydroxylation Of Polymer Surfaces And Products So Obtained - The present invention concerns the use of RO. radicals, R being a hydrogen, an alkyl group having 2 to 15 carbons, an acyl group —COR′ in which R′ represents an alkyl group having 2 to 15 carbons, or an aroyl group —COAr in which Ar represents an aromatic group having 6 to 15 carbons, for the hydroxylation, alkoxylation or oxycarbonylation of polymer surfaces, the said polymers being different from polymers chosen from: polymethylmethacrylate (PMMA) and fluorocarbon polymers when R represents a hydrogen, or of polymer mixture surfaces, notably hydrophobic ones, the said polymers consisting in monomeric units of which at least 50% among these are aliphatic units, and the said RO. radicals being generated by electrochemical or photochemical means. | 10-09-2008 |
| 20080312395 | Acrylate Polymers Based on Tert.- Butyl Acrylate Which are to be Used in Spray Formulations - The present invention relates to polymers obtainable by free-radical polymerization of
| 12-18-2008 |
| 20090281263 | DEVICE AND METHOD FOR PRODUCING ACRYLIC ACID WITH A REDUCED AUTOXIDATION TENDENCY - The present invention relates to a device for the preparation of acrylic acid, comprising a first reactor and at least one further reactor, wherein at least the first reactor is a multi-tube reactor having a plurality of tubes comprising a catalyst which catalyses the synthesis of acrolein, wherein the tubes open into a collection chamber which can be fluidically connected to the at least one further reactor via an outflow region, wherein the outflow region comprises a laminarization means causing laminarization of a flow profile of a gas flowing through the outflow region. The invention also relates to a process for the preparation of acrylic acid, to an acrylic acid, to a process for the preparation of a hydrophilic polymer, to a hydrophilic polymer, to a method for the production of a water-absorbent hygiene article, to chemical products, and to the use of an acrylic acid. | 11-12-2009 |
| 20100010184 | Process for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles by neutralizing the monomer and cooling it by means of an indirect heat exchanger, wherein the specific cooling performance of the heat exchanger is less than 10 W/m | 01-14-2010 |
| 20100022734 | PROCESS FOR SEPARATING ACRYLIC ACID PRESENT AS A MAIN CONSTITUENT AND GLYOXAL PRESENT AS A BY-PRODUCT IN A PRODUCT GAS MIXTURE OF A PARTIAL HETEROGENEOUSLY CATALYZED GAS PHASE OXIDATION OF A C3 PRECURSOR COMPOUND OF ACRYLIC ACID - A process for separating acrylic acid present as a main product and glyoxal present as a by-product in a product gas mixture of a partial gas phase oxidation of a C | 01-28-2010 |
| 20100041847 | Production of Superabsorbent Polymers on a Continuous Belt Reactor - The invention relates to a process for production of superabsorbent polymers on a continuous belt reactor, wherein a continuous polymerization belt rests at least partly upon the upper surface of at least one continuous support belt and the at least one continuous support belt slides at least partly on a fixed surface. | 02-18-2010 |
| 20100056739 | Transportation of a Monomer Composition in a Transport Means or Pipe - The invention relates to a method for the transportation of a monomer composition in which a composition comprising an aqueous solution of partially or entirely neutralized acrylic acid or overneutralized acrylic acid is placed in a transport means or sent through a pipe. The method according to the invention is characterized in that it has an increased level of safety during the transportation of acrylic acid monomers, an improved quality of the resulting product, and a high degree of efficiency. The method ensures safe transport of the highly reactive acrylic acid. The amount of polymerization inhibitors added to said acrylic acid may be reduced. An additional advantage is the minimization of the formation of dimeric acrylic acid. Tempering of containers, pipes, and pipelines may be omitted. | 03-04-2010 |
| 20100063233 | Method for producing acrylic acid - There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction. | 03-11-2010 |
| 20100197876 | PHOTOCURABLE COMPOUND - Disclosed is a compound having a photocurable urethane (meth)acrylate group, its manufacturing method, and a photocurable composition including the compound. The compound is represented by Chemical Formulae 1 to 6. Each of Chemical Formulae 1 to 6 includes a urethane (meth)acrylate group represented by Chemical Formula 1-1 or 1-2. | 08-05-2010 |
| 20100197877 | Production of Water-Absorbent Resins - What is described is a process for producing water-absorbing resins, in which a) acrylic acid is prepared at an acrylic acid production site, b) the acrylic acid prepared is dissolved in water at the acrylic acid production site to obtain an aqueous acrylic acid solution, c) the aqueous acrylic acid solution is fed into a pipeline at the acrylic acid production site and passed through the pipeline to an acrylic acid processing site and d) the aqueous acrylic acid solution is subjected to a free-radical polymerization at the acrylic acid processing site. The process ensures safe transport of the highly reactive acrylic acid. Endangerment as a result of premature polymerization, as in the case of glacial acrylic acid, is ruled out, since the acrylic acid is “diluted” by the aqueous solvent and the specific heat capacity and the evaporation enthalpy of the water limit the maximum temperature rise. The amount of polymerization inhibitors used be reduced or it is possible to entirely dispense with polymerization inhibitors. Temperature control of vessels and pipelines within which the aqueous acrylic acid solution is conducted can be dispensed with because the solidification point of the aqueous acrylic acid solution is lower than that of anhydrous acrylic acid. | 08-05-2010 |
| 20100216962 | METHOD FOR NEUTRALIZING A WATER-SOLUBLE ACRYLIC POLYMER BY AT LEAST ONE MONOVALENT AGENT AND AT LEAST ONE DIVALENT AGENT, AND POLYMERS OBTAINED - A method for manufacturing a water-soluble acrylic polymer, fully or partially neutralized by at least one monovalent agent and at least one divalent agent, by contacting the monovalent agent, the divalent agent, and a water-soluble acrylic polymer in acid form in an aqueous solution. Polymer obtained. The polymer obtained is limpid, and advantageously has a polymolecularity index between 1.5 and 3.0 for a molecular weight between 5,000 g/mol and 15,000 g/mol. | 08-26-2010 |
| 20100273970 | PROCESS FOR PREPARATION OF HIGH PURITY METHACRYLIC ACID - The present invention relates to a process for preparation of pure methacrylic acid, at least comprising the process steps: a) gas phase oxidation of a C4 compound to obtain a methacrylic acid-comprising gas phase, b) condensation of the methacrylic acid-comprising gas phase to obtain an aqueous methacrylic acid solution, c) separation of at least a part of the methacrylic acid from the aqueous methacrylic acid solution to obtain at least one crude methacrylic acid-comprising product; d) separation of at least a part of the methacrylic acid from the at least one crude methacrylic acid-comprising product by means of a thermal separation process to obtain a pure methacrylic acid. | 10-28-2010 |
| 20100305291 | Non-Fouling Receptor Labeled Multi-Functional Surfaces - The present invention provides compositions and methods of forming a multifunctional polymer film by plasma discharge by providing one or more monomers to a plasma discharge reactor, wherein the one or more monomers comprising one or more functional groups; polymerizing the one or more monomers into a multifunctional polymer; and forming a polymer film from the multifunctional polymer on a surface. | 12-02-2010 |
| 20110009590 | METHOD FOR PRODUCING PARTICULATE WATER - ABSORBING AGENT COMPOSED PRINCIPALLY OF WATER ABSORBING RESIN - Provided is a production method for the particulate water-absorbing agent, which can contribute to property enhancement, and further improvement of productivity or the like, as well. One example of the production method for the particulate water-absorbing agent relevant to the present invention includes the polymerization step for obtaining a polymer gel; the drying step for drying the polymer gel to obtain a dried substance; the pulverization step for pulverizing the dried substance or the polymer gel to obtain the particulate water-absorbing resin; the classification step for sieving the particulate water-absorbing resin; the granule sizing step for granule sizing the particulate water-absorbing agent obtained from the particulate water-absorbing resin; and the transporting step for transporting the products produced in each of the steps to other steps. Preferably, one or more steps selected from the pulverization step, the classification step, the granule sizing step and the transporting step after the pulverization step are set under reduced pressure state. | 01-13-2011 |
| 20110028669 | Microfluidic Devices Comprising Fluid Flow Paths Having Monolithic Chromatographic Material - Aspects of the invention include a microfluidic device having a fluid flow path and a monolithic chromatographic material covalently bound to at least a portion of a polymeric surface of the fluid flow path. Aspects of the invention further include methods of making and using such devices. | 02-03-2011 |
| 20110028670 | PROCESS FOR PRODUCTION OF WATER-ABSORBING RESINS - There is provided a production method for a water-absorbing resin for stably and continuously producing the water-absorbing resin with industrially high property, in particular, the water-absorbing resin with high liquid permeation. A method of the present invention relates to a production method for a water-absorbing resin including: a polymerization step of an aqueous solution of an unsaturated monomer; a drying step of the resultant hydrogel polymer; and a surface cross-linking step after drying; characterized by including a pneumatic transportation step for pneumatic transporting the water-absorbing resin powder substance in a pipeline with a surface roughness (Rz) of the inner surface of equal to or smaller than 800 nm, by using gas with a dew point of −5° C. to −100° C. | 02-03-2011 |
| 20110034655 | Process for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, wherein a polymer gel is removed from a polymerization reactor, stored intermediately as a particulate polymer gel in a delay vessel, removed by means of a first conveying device at the lower end of the delay vessel and dried, the intermediately stored particulate polymer gel being conveyed within the delay vessel by means of at least one second conveying device above the first conveying device in the direction of the first conveying device. | 02-10-2011 |
| 20110071267 | Process for Producing Water-Absorbing Polymer Particles with Improved Blood Absorbance by Polymerizing Droplets of a Monomer Solution - A process for producing water-absorbing polymer particles with improved blood absorbence by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises a surfactant. | 03-24-2011 |
| 20110105707 | Method for the Production of Water-Absorbing Polymer Articles by Polymerizing Drops of a Monomer Solution - A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase, wherein the monomer solution comprises at least | 05-05-2011 |
| 20110105708 | PROCESS FOR MANUFACTURING REDUCED WATER CONTENT (METH)ACRYLIC ACID - A method is provided herein for purifying (meth)acrylic acid to provide a purified (meth)acrylic acid product having a low aldehyde concentration and not more than 0.2 wt % water. One embodiment of the method includes distilling (meth)acrylic acid in the presence of an aldehyde treating compound. Another embodiment of the method includes also distilling crude (meth)acrylic acid in the presence of a reactive drying agent. (Meth)acrylic acid produced in this manner is especially suitable for use in specialty (meth)acrylic acid polymers, such as for example superabsorbent polymers, binders, and ethylene-(M)AA copolymers. | 05-05-2011 |
| 20110105709 | WATER-SOLUBLE ACRYLIC ACID SALT POLYMER AND GELLING BASE - The present invention provides a water-soluble acrylate polymer that makes it possible to obtain a gelling base having a gel strength recited below when the gelling base comprises the components and the proportions thereof listed below;
| 05-05-2011 |
| 20110118430 | Method for Producing Water-Absorbing Polymer Particles - A process for producing water-absorbing polymer particles, comprising polymerization, drying, comminution, classification and recycling of the undersize obtained in the classification, wherein the recycled undersize is coated with a reducing agent and/or inorganic particles. | 05-19-2011 |
| 20110124834 | PROCESS FOR STARTING UP A SEPARATING PROCESS FOR PURIFYING REMOVAL OF ACRYLIC ACID CRYSTALS FROM A SUSPENSION S OF CRYSTALS THEREOF IN MOTHER LIQUOR - A process for starting up a separating process for purifying removal of acrylic acid crystals from a suspension S of crystals thereof in mother liquor with a hydraulic wash column which has a crystal melt circuit including crystal melt space, and a process space and a distributor space which are separated by an end with passages connecting the two spaces, in which the crystal bed is formed for the first time by first filling the crystal melt circuit and, at least partly, the process space with an acrylic acid-comprising startup liquid whose acrylic acid crystal formation temperature is less than or equal to the temperature of the suspension S increased by 15° C., and then continuing the filling of the wash column with the suspension S and optionally with control liquor until the difference between the pressure in the crystal melt space and the pressure in the distributor space falls suddenly, the arithmetic mean of the total waste liquor flow flowing through the filters of the filter tubes of the wash column until this time, based on the area of all filters, being not more than 80 m | 05-26-2011 |
| 20110144294 | WATER-ABSORBING POLYMER STRUCTURES BASED ON RENEWABLE RAW MATERIALS AND PROCESS FOR THEIR PRODUCTION BY DEHYDRATION - The present invention relates to a process for production of acrylic acid, comprising at least the following steps:
| 06-16-2011 |
| 20110190463 | NANOIMPRINT LITHOGRAPHY PROCESSES FOR FORMING NANOPARTICLES - A lithography method for forming nanoparticles includes patterning sacrificial material on a multilayer substrate. In some cases, the pattern is transferred to or into a removable layer of the multilayer substrate, and functional material is disposed on the removable layer of the multilayer substrate and solidified. At least a portion of the functional material is then removed to expose protrusions of the removable layer, and pillars of the functional material are released from the removable layer to yield nanoparticles. In other cases, the multilayer substrate includes the functional material, and the pattern is transferred to or into a removable layer of the multilayer substrate. The sacrificial layer is removed, and pillars of the functional material are released from the removable layer to yield nanoparticles. | 08-04-2011 |
| 20110207906 | Process for Producing Water-Absorbing Particles - A process for producing water-absorbing polymer particles, wherein an aqueous polymer gel is dried in a forced-air belt drier on a circulating conveyor belt and the surface of the conveyor belt has a multitude of elevations or depressions which are suitable for restricting the mobility of the aqueous polymer gel in transverse direction. | 08-25-2011 |
| 20110257355 | Process for producing acrylic acid - A process for producing acrylic acid of the present invention comprises the step of conducting gas-phase oxidative dehydrogenation of a composition containing propionaldehyde using a solid catalyst containing molybdenum and vanadium as essential components, thereby obtaining acrylic acid. The obtained acrylic acid is preferably purified by crystallization, and a monomeric component containing the purified acrylic acid is polymerized to thereby give a hydrophilic resin such as an absorbent resin and a water-soluble resin. | 10-20-2011 |
| 20110275777 | METHOD FOR PRODUCING ACROLEIN COMPRISING THE REGENERATION OF A RAW GLYCERIN PHASE - The invention relates to a method for producing acrolein, comprising the following steps: (a) dehydrating an aqueous glycerin phase G1 in an acrolein reaction region, obtaining an aqueous acrolein reaction phase; (b) at least partially separating the aqueous acrolein reaction phase into an acrolein-rich acrolein phase and an acrolein-poor (in comparison to the acrolein phase) residual phase R1, wherein the residual phase R1 comprises glycerin, water and various remainders from glycerin and water; (c) recycling at least a part of the residual phase R2 in step (a); wherein i) from a glycerin phase G2 comprising remainders that differ from glycerin and water, at least one of said remainders is separated and the thus obtained, purified glycerin phase G2 is immediately supplied to the acrolein reaction region, or ii) at least one remainder different from glycerin and water is separated out of a mixture phase M1 obtained by mixing a glycerin phase G2 with the acrolein-poor residual phase R1, and the thus obtained, purified mixture phase M1 is supplied to the acrolein reaction region. The invention furthermore relates to a method for producing acrylic acid, water-absorbing polymer formations, compounds and hygiene articles, to devices for carrying out the method and their application, to a method for purifying a glycerin phase and to the application of a glycerin phase. | 11-10-2011 |
| 20120046432 | PROCESS FOR PRODUCING (METH)ACRYLIC ACID AND CRYSTALLIZATION SYSTEM - A process for producing (meth)acrylic acid comprising the steps of: supplying a cooling medium to a crystallizer ( | 02-23-2012 |
| 20120046433 | PROCESS FOR PRODUCING (METH)ACRYLIC ACID - A process for producing (meth)acrylic acid, comprising a crystallizing step of supplying a cooling medium from a refrigerator to a crystallizer and returning the cooling medium from the crystallizer to the refrigerator, thereby obtaining a (meth)acrylic acid crystal from a (meth)acrylic acid-containing solution; and a melting step of supplying a heating medium from a refrigerator to the crystallizer and returning the heating medium from the crystallizer to the refrigerator, thereby melting the (meth)acrylic acid crystal; wherein the crystallizing step and the melting step are respectively performed at least once, thereby producing purified (meth)acrylic acid from a crude (meth)acrylic acid solution; temperature of the cooling medium discharged from the refrigerator is maintained constant at temperature T | 02-23-2012 |
| 20120059138 | Neutralization Process - The invention relates to a neutralization process in which at least one ethylenically unsaturated carboxylic acid is preneutralized at least partly with a base, wherein the preneutralized solution is divided into at least two part-solutions and at least one part-solution is aftertreated so as to form part-solutions with different degree of neutralization and/or solids content, and also to an apparatus for carrying out the process. | 03-08-2012 |
| 20120071620 | METHOD FOR CRYSTALLIZING (METH)ACRYLIC ACID AND METHOD FOR REGULATING CONTENT OF POLYMERIZATION INHIBITOR IN PRODUCT (METH)ACRYLIC ACID | 03-22-2012 |
| 20120077947 | METHOD FOR PRODUCING (METH) ACRYLIC ACID - The objective of the present invention is to provide a method for efficiently producing (meth)acrylic acid by crystallization using a plurality of crystallizer to purify (meth)acrylic acid and a refrigerator for supplying both of a cooling medium and a heating medium, while the refrigerator is stably operated for supplying media having a proper temperature and the temperature of the crystallizers is maintained. The method for producing (meth)acrylic acid according to the present invention is characterized in comprising the steps of at least crystallizing (meth)acrylic acid and melting the (meth)acrylic acid crystal obtained in the crystallization step; wherein two or more crystallizers are employed; when both of the crystallization step and the melting step are concurrently carried out in separate crystallizers, from a refrigerator, a cooling medium is supplied to a crystallizer for carrying out the crystallization step to crystallize (meth)acrylic acid and a heating medium is supplied to other crystallizer for carrying out the melting step to melt the (meth)acrylic acid crystal; and when only the crystallization step is carried out before the melting step is carried out, a temperature of a heating medium to be returned to the refrigerator is previously decreased to be lower than a set temperature for the melting step before only the crystallization step is carried out. | 03-29-2012 |
| 20120157650 | POLYACRYLIC ACID (SALT)-TYPE WATER ABSORBENT RESIN AND METHOD FOR PRODUCING OF SAME - A process for producing a water absorbent resin is provided with which it is possible to efficiently and inexpensively obtain a surface-crosslinked water-absorbing resin having excellent material properties, while ensuring high productivity. In continuous production scaled up to a large scale (in particular, 1 t/hr or more), the physical properties are improved and stabilized (for example, a reduction in standard deviation of the physical properties) by a surface crosslinking treatment to further improve absorption against pressure (AAP) and saline flow conductivity (SFC). The process for producing a polyacrylic acid (salt)-type water absorbent resin includes a surface treatment step in which after addition of a surface-crosslinking agent, a crosslinking reaction is conducted in a transverse type continuous stirring apparatus having stirring means including a feeding inlet and a discharging outlet of a water absorbent resin and one or more rotary shafts having with a plurality of stirring discs, and heating means, at a stirring-power index of the device of 3-15 W·hr/kg. | 06-21-2012 |
| 20120220745 | PRODUCTION METHOD FOR WATER-ABSORBING RESIN POWDER | 08-30-2012 |
| 20120264902 | Methods, Systems and Compositions for Increased Microorganism Tolerance to and Production of 3-Hydroxypropionic Acid (3-HP) - The present invention relates to methods, systems and compositions, including genetically modified microorganisms, adapted to exhibit increased tolerance to 3-hydroxypropionic acid (3-HP), particularly through alterations to interrelated metabolic pathways identified herein as the 3-HP toleragenic pathway complex (“3HPTGC”). In various embodiments these organisms are genetically modified so that an increased 3-HP tolerance is achieved. Also, genetic modifications may be made to provide at least one genetic modification to any of one or more 3-HP biosynthesis pathways in microorganisms comprising one or more genetic modifications of the 3HPTGC. | 10-18-2012 |
| 20130005926 | PROCESS FOR PRODUCING WATER-ABSORBING RESIN - The disclosed process for producing a water-absorbing resin comprising: a polymerization step of polymerizing an aqueous unsaturated monomer; and a drying step of drying a particulated water-containing gel-liked crosslinked polymer, obtained in a finely crushing step during the polymerization or after the polymerization. In the process, the drying step is interrupted with a dryer kept in a heated state and thereafter the drying step is restarted. | 01-03-2013 |
| 20130018161 | CATALYST FOR GLYCERIN DEHYDRATION, AND PROCESS FOR PRODUCING ACROLEIN, PROCESS FOR PRODUCING ACRYLIC ACID, AND PROCESS FOR PRODUCING HYDROPHILIC RESIN EACH USING THE CATALYSTAANM Ezawa; TakayukiAACI Tsukuba-shiAACO JPAAGP Ezawa; Takayuki Tsukuba-shi JPAANM Okada; MasakiAACI Tsukuba-shiAACO JPAAGP Okada; Masaki Tsukuba-shi JPAANM Arita; YoshitakaAACI Tsukuba-shiAACO JPAAGP Arita; Yoshitaka Tsukuba-shi JP - A catalyst for glycerin dehydration of the present invention comprises boron phosphate or a rare-earth metal phosphate, wherein a molar ratio P/B of phosphorus (P) to boron (B) or a molar ratio P/R of phosphorus (P) to a rare-earth metal (R) is more than 1.0 and 2.0 or less. An another catalyst for glycerin dehydration of the present invention comprises a combination of boron phosphate and a metal element or a combination of a rare-earth metal phosphate and a metal element other than a rare-earth metal, wherein a molar ratio M/(P+B) of a metal element (M) to phosphorus (P) and boron (B) or a molar ratio M/(P+R) of a metal element (M) to phosphorus (P) and a rare-earth metal (R) is more than 0.00005 and 0.5 or less. | 01-17-2013 |
| 20130046069 | Method and apparatus for producing a film web from thermoplastic material and film produced thereby - The invention relates to a method and an apparatus for producing a film web made of thermoplastic material in which the thermoplastic material is extruded in at least one layer as plastic melt from a wide-slit nozzle in an extrusion direction and subsequently led away over at least roller, wherein tensile forces are exerted in the extrusion direction and transversely to the extrusion direction in order to stretch the film web longitudinally and transversely, wherein during application of the tensile forces in and transversely to the extrusion direction the film web has a temperature at least corresponding to the melting temperature of the same. | 02-21-2013 |
| 20130123454 | METHOD FOR PRODUCING A WATER-ABSORBENT RESIN - The present invention provides a method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, was reduced, and a water-absorbent resin obtained by the method. More specifically, the present invention provides a method for producing a water-absorbent resin comprising performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium by using a surfactant, wherein an aqueous solution of the water-soluble ethylenically unsaturated monomer is dispersed in the dispersion medium at a specific pouring rate to reduce an odor, and a water-absorbent resin obtained by the method, are provided. | 05-16-2013 |
| 20130123455 | METHOD FOR PRODUCING A WATER-ABSORBENT RESIN - A method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min | 05-16-2013 |
| 20130158222 | POLYVINYL ALCOHOL POLYMER, AND METHOD FOR PRODUCING HYDROLYZABLE CELLULOSE USING THE SAME - A polyvinyl alcohol polymer capable of, in producing hydrolyzable cellulose using a cellulosic biomass as a basic material, readily disrupting the cellulosic biomass at a molecular level by imparting a suitable flow resistance to a solution containing the cellulosic biomass, or the like, thereby resulting in efficient production of hydrolyzable cellulose to be enabled; and a method for producing hydrolyzable cellulose using the polyvinyl alcohol polymer. Provided is a polyvinyl alcohol polymer for use in producing hydrolyzable cellulose using a cellulosic biomass as a basic material, the polyvinyl alcohol polymer having: an average degree of polymerization of no less than 200 and no greater than 5,000; a degree of saponification of no less than 70 mol % and no greater than 99.9 mol %; and a molecular weight distribution of no less than 2.2. | 06-20-2013 |
| 20130281649 | METHODS FOR PRODUCING ACRYLIC ACID AND/OR ESTER THEREOF AND POLYMER OF THE ACRYLIC ACID AND/OR ESTER THEREOF - The present invention aims to provide a method for stably producing highly pure acrylic acid and/or an ester thereof for a long time, in which a blockage in an evaporator or reactor and lowering of the catalytic activity are suppressed. The present invention also aims to provide a method for producing a hydrophilic resin with excellent performance and high safety using acrylic acid and/or an ester thereof containing fewer impurities as a raw material. | 10-24-2013 |
| 20130345384 | ULTRASONIC-ASSISTED MOLDING OF PRECISELY-SHAPED ARTICLES AND METHODS - An ultrasonic-assisted injection molding system and method for making precisely-shaped articles. A source of ultrasonic energy is positioned to apply vibrational energy to a mold cavity connected to at least one gate in flow communication with a source of molten (co)polymer. The mold is heated to a temperature of 104-116° C., and the molten (co)polymer is injected into the mold cavity. After cooling the mold until the molten (co)polymer within the gate has solidified, ultrasonic energy is applied to the mold without remelting the solidified (co)polymer within the gate until the temperature increases to 116-122° C., thereby substantially relieving flow induced stresses. The mold is then cooled until the temperature decreases to 101-107° C., and is thereafter heated until the temperature increases to 116-122° C., thereby substantially relieving any thermally induced stresses. The mold is cooled until the molten (co)polymer has solidified, thereby forming a precision molded plastic optical element. | 12-26-2013 |
| 20140100346 | NANOIMPRINT LITHOGRAPHY PROCESSES FOR FORMING NANOPARTICLES - A lithography method for forming nanoparticles includes patterning sacrificial material on a multilayer substrate. In some cases, the pattern is transferred to or into a removable layer of the multilayer substrate, and functional material is disposed on the removable layer of the multilayer substrate and solidified. At least a portion of the functional material is then removed to expose protrusions of the removable layer, and pillars of the functional material are released from the removable layer to yield nanoparticles. In other cases, the multilayer substrate includes the functional material, and the pattern is transferred to or into a removable layer of the multilayer substrate. The sacrificial layer is removed, and pillars of the functional material are released from the removable layer to yield nanoparticles. | 04-10-2014 |
| 20140288254 | MICROORGANISMS AND METHODS FOR ENHANCING THE AVAILABILITY OF REDUCING EQUIVALENTS IN THE PRESENCE OF METHANOL, AND FOR PRODUCING 3-HYDROXYISOBUTYRATE OR METHACRYLIC ACID RELATED THERETO - Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as 3-hydroxyisobutyrate or MAA. Also provided herein are methods for using such an organism to produce 3-hydroxyisobutyrate or MAA. | 09-25-2014 |
| 20140296464 | CHROMATOGRAPHY MEDIUM - The present invention provides a chromatography medium comprising one or more electrospun polymer nanofibres which form a stationary phase comprising a plurality of pores through which a mobile phase can permeate and use of the same in chromatography, such as the isolation of recombinant proteins, monoclonal antibodies, viral vaccines and plasmid DNA. The invention further provides for the use of the chromatographic medium in a simulated moving bed system. | 10-02-2014 |
| 20140303338 | PROCESS FOR PRODUCING ACROLEIN, ACRYLIC ACID AND DERIVATIVES THEREOF - A process for producing acrolein, comprising: a glycerin dehydration step of conducting dehydration reaction of glycerin to obtain an acrolein-containing gas; a partial-condensation step of cooling the acrolein-containing gas to condense a part of acrolein, water and a high-boiling substance contained in the acrolein-containing gas, thereby obtaining a purified gas and a condensate; and a separation step of separating the purified gas from the condensate; wherein a polymerization inhibitor is added to the acrolein-containing gas or the condensate in the partial-condensation step. | 10-09-2014 |
| 20150322180 | METHOD FOR PRODUCING POLYACRYLIC ACID (SALT)-BASED WATER ABSORBENT RESIN - An object of the present invention is to provide a simple method for improving and stabilizing the physical properties (for example, liquid permeability) of a water absorbent resin, without requiring investment in expensive facilities or modification of raw materials. In particular, the object is to provide a method which is useful in the large-scale production of a water absorbent resin. The method for producing polyacrylic acid (salt)-based water absorbent resin of the present invention includes, in order, a step in which an acrylic acid (salt)-based monomer aqueous solution is polymerized, a step in which the water-containing gel-like crosslinked polymer obtained in the polymerization step is dried, a step in which the dried polymer obtained in the drying step is pulverized, and a classification step which takes place after the drying step or after the pulverizing step, wherein, at the time of providing the dried polymer to the roll mill used in the pulverizing step, the dried polymer is provided in a dispersed state in the axial direction of the roll of the roll mill. | 11-12-2015 |
