| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528323000 |
Lactam-containing reactant
| 47 |
| 528322000 |
Imide-containing reactant
| 29 |
| 528312000 |
Polymerizing in the presence of a specified material other than reactant
| 24 |
| 528327000 |
Heterocyclic reactant or a reactant which contains a nitrogen atom bonded directly to another nitrogen atom
| 11 |
| 528328000 |
From N-C-(C=O)-OH containing reactant or acid derivative thereof, e.g., alpha amino acid, etc.
| 9 |
| 528331000 |
Aryl-containing reactant
| 9 |
| 528321000 |
Phosphorus- or sulfur-containing reactant
| 9 |
| 528329100 |
With two or more reactants one of which is a carboxylic acid or derivative thereof which is devoid of an amine group and one reactant which is a polyamine which is devoid of a carboxylic acid group or carboxylic acid derivative group | 3 |
| 20080262191 | METHODS FOR THE PREPARATION OF IMIDES, MALEIMIDES AND MALEIMIDE-TERMINATED POLYIMIDE COMPOUNDS - Provided herein are methods for preparing maleimides, polyimides and maleimide-terminated polyimides. Specifically disclosed are methods for preparing maleimides from N-substituted maleamic acids in the presence of an alcohol catalyst and an acid co-catalyst in a solvent. Also disclosed are methods for preparing polyimides by reacting a diamine with a dianhydride in a reaction medium that includes a solvent and a polar protic co-solvent. Further provided are methods for preparing maleimide-terminated polyimides from diamines in an aromatic solvent containing a polar protic co-solvent. | 10-23-2008 |
| 20080281073 | High-Purity Oxydiphthalic Acid Anhydride and Process for Producing the Same - It is to provide a high purity oxydiphthalic anhydride with which, in production of a polyimide containing an oxydiphthalic anhydride, one having sufficiently high strength can be produced, and an industrially simple process for producing it. | 11-13-2008 |
| 20160083538 | Solvent Resistant, Transparent Aromatic Polyamide Films with High Refractive Indices - A solvent resistant, transparent aromatic polyamide film with a high refractive index may be made by reacting at least one aromatic diacid chloride, a first aromatic diamine, and at least one crosslinking agent or a second aromatic diamine in an organic solvent to form an aromatic polyamide polymer in solution. In one embodiment, the at least one aromatic diacid chloride is selected from the group consisting of isophthaloyl dichloride, terephthaloyl dichloride, | 03-24-2016 |
| Entries |
| Document | Title | Date |
|---|
| 20080287641 | MICRON-SIZE POLYMER PARTICLES, PRODUCTION AND USES THEREOF - A plurality of micron-size solid particles is described herein that includes at least one polyamide compound, wherein the particles comprise a diameter in the range of about 1 micron to about 1000 microns, and wherein at least some of the plurality of particles are substantially transparent. In addition, a plurality of micron-size solid particles is described herein that includes at least one polyamide compound, wherein the particles comprise a diameter of less than about 4 microns. Methods of forming a plurality of micron-size solid particles are also described that include a) introducing at least one amide-based compound having a melting point, at least one suspending agent and at least one surfactant into a reaction vessel to form a reaction mixture; b) applying a thermal energy to the reaction mixture, wherein the thermal energy comprises a temperature that is at or above the melting point of the at least one amide-based compound; c) polymerizing the at least one amide-based compound in the reaction mixture; d) cooling the reaction mixture; and e) rinsing the reaction mixture to retrieve the polymer particles. | 11-20-2008 |
| 20090099333 | Compounds Containing Aldimine - The invention relates to compounds of formula (I) which contain aldimine, and to the use thereof. Said compounds which contain aldimines are characterised in that they are odour-less and during hydrolysis the odour-free aldehydes are separated. They are used, therefor, as sources for aldehydes. They can also be used in cross-linking reactions. | 04-16-2009 |
| 20090306330 | Polyamide resin and hinged molded product - A polyamide resin comprising a dicarboxylic acid constitutional unit comprising an adipic acid unit and a diamine constitutional unit comprising a pentamethylenediamine unit and a hexamethylenediamine unit wherein a weight ratio of the pentamethylenediamine unit to the hexamethylenediamine unit being in the range of 95:5 to 60:40; a vibration-welded molded product having an excellent vibration welding strength, a hinged molded product and a binding band having an excellent low-temperature toughness, and a filament having an excellent transparency which are obtained from the polyamide resin; and a hinged molded product comprising a polyamide resin constituted of an adipic acid unit and a pentamethylenediamine unit. | 12-10-2009 |
| 20090318660 | CROSSLINKABLE ARAMID COPOLYMERS - The invention pertains to an aramid copolymer composition comprising an aramid copolymer having at least one arylene carboxylic acid moiety and at least one hydroxyarylene moiety, or comprising an aramid copolymer having at least one arylene carboxylic acid moiety or having at least one hydroxyarylene moiety, and a crosslinker agent. The invention further relates to crosslinked copolymers derived thereof and shaped articles comprising said crosslinked copolymers. | 12-24-2009 |
| 20100145002 | TETRACARBOXYLIC ACID OR POLYESTERIMIDE THEREOF, AND PROCESS FOR PRODUCTION OF THE SAME - The present invention provides a useful and novel alicyclic polyesterimide. | 06-10-2010 |
| 20100179300 | Product containing epichlorohydrin, its preparation and its use in various applications - Product containing epichlorohydrin and at least one alkyl glycidyl ether in an amount of less than 0.1 g/kg of product. Use of the product containing epichlorohydrin in the manufacture of epoxy resins, of glycidyl ethers, of glycidyl esters, of glycidyl amides, of glycidyl imides, of products that will be used in food and drink applications, of cationization agents, and of flame retardants, of products which will be used as detergent ingredient and of epichlorohydrin oligomers. | 07-15-2010 |
| 20100204434 | Process For The Preparation Of Particularly Reactive And Low-Viscosity Allophanates Having Actinic-Curable Groups And The Use Thereof For The Preparation Of Particularly Scratch-Resistant Coatings - The present invention relates to a process for the preparation of particularly reactive and low-viscosity reaction products of polyisocyanates which contain activated ethylenically unsaturated groups which react by polymerization under the action of actinic radiation, and the use of these reaction products in coating compositions, and particularly scratch-resistant coatings obtainable therefrom. | 08-12-2010 |
| 20100216967 | INTERFACIAL POLYMERIZATION METHODS FOR MAKING FLUOROALCOHOL-CONTAINING POLYAMIDES - A method including reacting a chemical mixture (A) and a chemical mixture (B) to form a polymeric compound, wherein where (A) and (B) are immiscible with each other, and wherein: | 08-26-2010 |
| 20100228000 | NYLON EXTRACTION FROM COMMINGLED MATERIALS - The present invention provides energetically and economically efficient methods for separating polyamide polymer(s) from commingled materials. The methods generally involve precipitating a polyamide polymer dissolved in a solvent (e.g., formic acid) using dimethyl ether (DME) as an antisolvent. The methods comprise dissolving the polyamide polymer in a solvent that (i) selectively dissolves the polyamide polymer relative to the other materials and (ii) has a higher solubility for DME relative to the polyamide polymer; and then contacting the mixture of the solvent with the dissolved polyamide polymer with DME, thereby precipitating the polyamide polymer. | 09-09-2010 |
| 20100324257 | OMEGA-AMINO CARBOXYLIC ACIDS, OMEGA-AMINO CARBOXYLIC ACID ESTERS, OR RECOMBINANT CELLS WHICH PRODUCE LACTAMS THEREOF - The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ω-aminocarboxylic acids, more ω-aminocarboxylic acid esters or more lactams derived from ω-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ω-aminocarboxylic acids, of ω-aminocarboxylic acid esters or of lactams derived from ω-aminocarboxylic acids, the ω-aminocarboxylic acids, ω-aminocarboxylic acid esters or lactams derived from ω-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ω-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method. | 12-23-2010 |
| 20100324258 | Process for the Production of Gamma-Aminobutyric Acid - The present invention relates to a novel method for the fermentative production of gamma-aminobutyric acid (GABA) by cultivating a recombinant micro-organism expressing an enzyme having a glutamate decarboxylase activity. The present invention also relates to corresponding recombinant hosts, recombinant vectors, expression cassettes and nucleic acids suitable for preparing such hosts as well as to a method for preparing polyamides making use of GABA as obtained fermentative production. | 12-23-2010 |
| 20110003965 | CNT-PI COMPLEX HAVING EMI SHIELDING EFFECTIVENESS AND METHOD FOR PRODUCING THE SAME - The present invention provides a complex including carbon nanotubes (CNT) and polyimide (PI), and a method for producing the same. The CNT-PI complex possesses good electromagnetic shielding effectiveness. The CNT-PI complex primarily includes polyimide and carbon nanotubes dispersed in the polyimide. The method for producing the CNT-PI complex first disperses carbon nanotubes in a solvent by adding a dispersant and using an ultrasonic oscillator. Then the carbon nanotubes dispersion is mixed with polyamic acid to give a CNT-PI dispersion. The CNT-PI dispersion is then dried to form a film or layer of the CNT-PI complex. The dispersant used in this invention is an ionic liquid including organic cations and inorganic anions. The produced CNT-PI complex presents better networked structures and electrical conductivity. | 01-06-2011 |
| 20110160426 | HYDROLYTICALLY DECOMPOSABLE IONIC COPOLYMERS - The invention at hand provides hydrolytically degradable ionic copolymers. These ionic copolymerizates are composed of one cyclic ketene acetal A, one anionic or cationic methacrylic acid derivative B, selected from 2-methyl-methacrylate, [2-(2-methyl-1-methylene-allyloxy)]ethanesulfonate, [2-(2-methyl-1-methylene-allyloxy)ethyl]phosphonate or a quaternary amine of the N,N-dimethylaminoethylmethacrylic acid (DMAEMA) and, optionally, a neutral methacrylic acid derivative C. | 06-30-2011 |
| 20130150550 | Antibiotic-Bound Poly(Caprolactone) Polymer - This invention is the design and synthesis of a caprolactone monomer which bears a pendant protected carboxyl group. This monomer has been copolymerized with caprolactone in varying ratios. After polymerization, the protecting group can be removed and an antibiotic can be attached as a new pendant group. The bioactivity of the antibiotic-bound poly(caprolactone) polymer is described. | 06-13-2013 |
| 20140024800 | CARBON DIOXIDE CAPTURE AND CONVERSION TO A CARBAMATE SALT AND POLYUREA - A method for treating carbon dioxide includes preparing a polyamine composition and delivering a stream containing carbon dioxide to the polyamine composition. The carbon dioxide reacts with polyamine in the polyamine composition to form a carbamate salt. A method for producing polyurea from carbon dioxide includes delivering a stream containing carbon dioxide to a polyamine composition. The carbon dioxide reacts with polyamine in the polyamine composition to form a carbamate salt. The method also includes dehydrating the carbamate salt to produce polyurea. | 01-23-2014 |
| 20140256904 | BIOTECHNOLOGICAL SYNTHESIS PROCESS OF OMEGA-FUNCTIONALIZED CARBON ACIDS AND CARBON ACID ESTERS FROM SIMPLE CARBON SOURCES - The subject of the invention is a biotechnological process for the production of ω-functionalized carboxylic acids and of ω-functionalized carboxylate esters from simple carbon sources. | 09-11-2014 |
| 20140323684 | AMINO ACID PREPARATION METHOD COMPRISING A STEP OF HYDROFORMYLATION OF AN UNSATURATED FATTY NITRILE - A method for synthesizing a ω-amino acid compound having formula HOOC—R′—CH | 10-30-2014 |
| 20150011725 | NYLON POLYMER AND PROCESS - Provided is a process for producing a nylon polymer comprising the steps of contacting an omega-terminal fatty acid or fatty acid ester with a pentenenitrile to produce a nitrile-functionalized unsaturated fatty acid or fatty acid ester, hydrogenating the nitrile-functionalized unsaturated fatty acid or fatty acid ester with hydrogen in the presence of a hydrogenation catalyst to produce a saturated amino acid and subjecting the saturated amino acid to polyamidation conditions to provide a nylon polymer. | 01-08-2015 |
| 20150336879 | PROCESS FOR THE SYNTHESIS OF OMEGA-UNSATURATED NITRILE-ACID/ESTER IN WHICH TWO TYPES OF CROSS METATHESIS ARE ALTERNATED CONSECUTIVELY, SWING PROCESS - A process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I including at least one trivalent nitrile, acid or ester functional group, wherein the process includes a stage in which two types of cross metathesis are alternated consecutively: — a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II including a nitrile functional group and the other of these compounds II or I including an acid or ester functional group, and—a second type of cross metathesis cm2 with a light C | 11-26-2015 |
| 20160016894 | COMBINED SYNTHESIS OF A NITRILE-ESTER/ACID AND OF A DIESTER/DIACID - A method for the combined synthesis of a mono-unsaturated nitrile-ester(acid) and of a bi-functional carbonyl compound, wherein it includes a step including the cross metathesis mc1 of an unsaturated fatty acid/ester compound with an unsaturated nitrile compound, in which mc1 is performed with partial conversion such as to obtain and recover, separately, at least the following products: a mono-unsaturated nitrile-ester/acid and a symmetrical compound, diester or diacid respectively including a double bond located in the middle of the molecular chain of compound, and subsequently a step including the oxidation cleavage cp2 of the double bond of compound, such as to form a single type of carbonyl compound having formula R2-(CH2)n-COR′, in which R′ is H or OH, depending on the operating conditions selected for the oxidation cleavage cp2. Also, the production of monomers for the polymer industry. | 01-21-2016 |
| 20160032050 | REACTOR HAVING A VERTICAL CONDENSATION TUBE AND METHOD FOR THE POLYMERIZATION OF POLYAMIDES IN SUCH A REACTOR - The invention relates to a reactor in the form of a VK tube (VK: simplified continuous), for the polymerisation of polyamides, the reactor being subdivided into an upper and lower reactor region, which are controllable independently of each other. Likewise, the invention relates to a method for the production of polyamides in which such a reactor is used. | 02-04-2016 |
| 20160032057 | NOVEL PI POLYAMIDE - To provide a safe and stable medicine useful for prevention and treatment of prostate cancer. | 02-04-2016 |
| 20160046765 | METHOD FOR PRODUCING POLYAMIDE RESIN - A polyamide resin is produced by polycondensing a polyamide oligomer having a relative viscosity of from 1.1 to 1.3 and a water content of 3% by weight or less by melt-kneading using an intermeshed co-rotation twin screw extruder having at least one or more open vents OV | 02-18-2016 |
| 20160185705 | HYDROBROMINATION METHOD - A process for synthesizing a product of formula Br—(CH | 06-30-2016 |
| 20180023088 | MATERIALS AND METHODS FOR THE BIOSYNTHESIS OF SEVEN CARBON CHEMICALS IN THE PRESENCE OF METHANOL OXIDATION | 01-25-2018 |
| 20190144605 | DIAMINE COMPOUND, DIAMINE-DIACID SALT, COPOLYMER AND METHOD FOR MANUFACTURING THE SAME | 05-16-2019 |
