| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528312000 | Polymerizing in the presence of a specified material other than reactant | 24 |
| 528313000 | Material contains a phosphorus or sulfur atom | 3 |
| 20100121021 | PROCESS FOR THE PREPARATION OF POLYLACTONES AND POLYLACTAMS - The present invention relates to a process for the preparation of a lactone or lactam homopolymer, comprising the stage consisting in reacting a lactone or lactam with a nonpolymeric initiator comprising at least one hydroxyl or thiol functional group in a nonchlorinated solvent in the presence of a sulfonic acid of formula R—SO | 05-13-2010 |
| 20110152493 | METHOD OF MAKING POLYLACTIC ACID USING CARBENE DERIVATIVES AS THE CATALYST - This disclosure provides a method of making polylactic acid using carbon dioxide adducts of carbenes, wherein the adducts of carbenes have a structure represented by formula (I) as follows: | 06-23-2011 |
| 20140155571 | POLYMERIZATION METHOD AND PRODUCT - Methods of preparing a polyaniline homopolymer or copolymer comprising at least one carboxylic acid group, and homopolymers or copolymers arising therefrom, the methods comprising: preparing a solution of a polyaniline precursor having at least one aromatic amine group and at least one carboxylic acid group (eg. 2-aminobenzoic acid, 3-aminobenzoic acid or 4-aminobenzoic acid) in a solvent selected from aqueous methanesulfonic acid or aqueous ammonia and optionally one or more additional polyaniline precursors (such as aniline); and oxidatively polymerising the polyaniline precursor or precursors. | 06-05-2014 |
| 528314000 | Material contains a nitrogen atom as a ring member of a heterocyclic ring other than where nitrogen heterocycle is solely part of a lactam ring | 1 |
| 20090198039 | PROCESS FOR THE PREPARATION OF A POLYMER HAVING IMPROVED DYEABILITY - Process for the preparation of a polymer comprising the polymerisation of corresponding monomers in the presence of a triazine compound of the formula | 08-06-2009 |
| 528315000 | Material is a nitrogen-containing compound other than a lactam | 10 |
| 20120077952 | PROCESS FOR THE PREPARATION OF COPOLYMER - 1 (COP-1), COMPOSED OF L-ALANINE, L-LYSINE, L-GLUTAMIC ACID AND L-TYROSINE-DRUG FOR THE TREATMENT OF MULTIPLE SCLEROSIS - A process for the synthesis of copolymer-1 composed of L-alanine, LHysine, L-glutamic acid and L-tyrosine for the treatment of multiple sclerosis. The molecular weight of copolymer-1 is between 8-19 KDa. Process is initiated by supported dialkyl amine. The copolymer-1 of the invention has acid content of less than 1%. | 03-29-2012 |
| 20120245320 | Method of production of cast polyamides - The present invention relates to a new method of production of cast polyamides. | 09-27-2012 |
| 20120283406 | COMPOSITION FOR ANIONIC LACTAM POLYMERIZATION - A composition comprising a) at least one aliphatic or cycloaliphatic isocyanate compound having at least two isocyanate groups and b) at least one lactone, containing 4 to 7 carbon atoms and use of the composition as an activator for anionic lactam polymerization to obtain polyamides. | 11-08-2012 |
| 20130172517 | PREPARATION OF LOW MOLECULAR WEIGHT POLYORNITHINE IN HIGH YIELD - The present invention generally relates to the large-scale (e.g., greater than 1 kg scale) preparation of low molecular weight polylysine or polyornithine in high yield by preparing a polylysine or polyornithine having a weight average molecular weight from about 12,500 Daltons to about 22,000 Daltons and hydrolyzing it to produce a polylysine or polyornithine having a weight average molecular weight from about 5,500 Daltons to about 12,000 Daltons. | 07-04-2013 |
| 20130261282 | Process for Producing Polyamide Moldings From a Polymerizable Composition by Means of Rotomolding Processes - The present invention relates to a process for producing polyamide moldings by subjecting a lactam-containing polymerizable composition to a rotomolding process. | 10-03-2013 |
| 20140142274 | SOLID PARTICLES, CONTAINING LACTAM, ACTIVATOR, AND CATALYST, METHOD FOR PRODUCING SAID SOLID PARTICLES, AND USE OF SAID SOLID PARTICLES - The present invention relates to solid particles which comprise at least one lactam, and also at least one activator, and at least one catalyst, to a process for the production of these, and also to the use of these for the production of polyamide, and to a process for the production of polyamide. | 05-22-2014 |
| 20140148570 | NEW COMPOSITION FOR PRODUCING CAST POLYAMIDES - The present invention relates to novel compositions for producing cast polyamides. | 05-29-2014 |
| 20140336350 | NOVEL COMPOSITIONS, PREPARATION THEREOF AND USE THEREOF FOR PRODUCTION OF CAST POLYAMIDES - The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides. | 11-13-2014 |
| 20150045531 | COMPOSITION FOR ANIONIC LACTAM POLYMERIZATION - A composition comprising a) at least one aliphatic or cycloaliphatic isocyanate compound having at least two isocyanate groups and b) at least one lactone, containing 4 to 7 carbon atoms and use of the composition as an activator for anionic lactam polymerization to obtain polyamides. | 02-12-2015 |
| 20150051368 | NOVEL COMPOSITIONS FOR PRODUCING CAST POLYAMIDES - The present invention relates to novel compositions for production of cast polyamides. | 02-19-2015 |
| 528316000 | Material is a ketone, aldehyde, or derivative | 2 |
| 20160031783 | PROCESS FOR PREPARING CYCLODODECANONE - Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON. | 02-04-2016 |
| 20160031784 | PROCESS FOR PREPARING CYCLODODECANONE - Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a. | 02-04-2016 |
| 528317000 | Material is an alcohol, ether, or inorganic alcoholate | 3 |
| 20100029893 | TWO-PART THERMOCURABLE POLYIMIDE RESIN COMPOSITION AND CURED PRODUCT THEREOF - It relates to a highly heat resistant thermosetting polyimide resin composition that is cured at a temperature of 150° C. or less, and provides a cured product that generates a less amount of decomposed gas even under heating to 250° C., and has flexibility and adhesiveness. | 02-04-2010 |
| 20130190471 | IMPACT-RESISTANT POLYAMIDE COMPOSITION AND PROCESS FOR PRODUCTION OF SAME - Provided are: an impact-resistant polyamide composition which exhibits improved toughness and improved impact strength and which can be easily polymerized in-situ in a molding stage; and a novel process for the production of the same. The novel process comprises initiating the anionic polymerization of ε-caprolactam in the presence of (A) an anionic polymerization catalyst, (B) an anionic polymerization activator, (C) 2.0 to 30% by weight (relative to the ε-caprolactam) of an N,N-disubstituted vinylbenzylamine, and (D) a radical polymerization initiator, and subjecting the resulting system to reaction under conditions comprising a reaction temperature of the reaction system of 120 to 180° C. and a reaction time of 10 seconds to 120 minutes. Since radical polymerization in the process is conducted without hindering the anionic polymerization, an alloyed polyamide composed of both polycaprolactam and poly (N,N-disubstituted vinylbenzylamine) can be obtained. | 07-25-2013 |
| 20160194445 | METHOD FOR PRODUCING POLYMER | 07-07-2016 |
| 528318000 | Material is a carboxylic acid, acyl halide thereof, ester thereof, or lactone thereof | 1 |
| 20160002402 | METHOD FOR MANUFACTURING NYLON 6 - Provided is a method for manufacturing nylon 6, said method being capable of producing a higher degree of crystallinity in a polymer at the end of a polymerization step performed on an anionically polymerizable caprolactam melt. The present invention is a method in which molten caprolactam in a reactor is anionically polymerized in the presence of a carbodiimide compound and both an anionic polymerization catalyst and an activator, neither of which is a carbodiimide compound, and a polymer is obtained from the reactor following the end of the polymerization step, yielding nylon 6 with a degree of crystallinity of at least 42% without raising the temperature of the interior of the reactor from the temperature thereof at the end of the polymerization step. | 01-07-2016 |
| 528319000 | Material contains a polyvalent metal atom | 4 |
| 20100121022 | 1,3-DIPOLAR CYCLOADDITION OF AZIDES TO ALKYNES - A process for the bulk polymerization, in the absence of any solvent, of a reactant containing azide functionality and a reactant containing a terminal alkyne functionality, in the presence of Cu (I) catalyst or in the presence of a Cu(II) catalyst without a reducing agent, is described. Polymerization can be achieved at temperatures less than 100° C., which is suitable for low temperature cures. A controlled synthesis for low molecular weight oligomers is disclosed. | 05-13-2010 |
| 20100280216 | METHOD OF PREPARING ORGANIC POROUS SOLIDS AND SOLIDS OBTAINABLE BY THIS METHOD - The present invention relates to a method of preparing porous solids, which method comprises polymerizing, in a salt melt or a eutectic mixture of salt melt containing at least one Lewis acidic salt, cyano monomers having at least one or at least two cyano groups in their molecule, wherein the at least one or at least two cyano groups are bonded to a rigid linking group in the cyano monomer, as well as to the porous solids obtainable by that method. Owing to their porosity and the associated extremely high specific surface area, the porous solids are useful as sorbents, filtering and insulating materials, as well as catalyst carriers. | 11-04-2010 |
| 20100280217 | POLYMERS FUNCTIONALIZED WITH HETEROCYCLIC NITRILE COMPOUNDS - A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound. | 11-04-2010 |
| 20130085255 | Process for Preparing Caprolactam and Polyamides Therefrom - Provided herein are processes for preparing caprolactam from a starting material such as one or more of the cis,cis-, cis,trans- and trans,trans-double-bond isomers of muconamide, muconic acid ester, or muconic acid. The starting material, intermediates, and caprolactam prepared therefrom can contain carbon atoms derived from biomass containing detectable | 04-04-2013 |
