| Patents for C08G 73 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups (26,191) |
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| 04/03/1990 | US4914176 Poly(heterocyclic) polymers |
| 04/03/1990 | US4914175 Injection moldable polyimides |
| 04/03/1990 | US4914163 Process for preparing heterocyclic copolymers |
| 04/03/1990 | US4914072 Phosphorus/titania/zirconia catalyst for preparation of linear polyethylenepolyamines |
| 04/03/1990 | US4913759 From 2,2-bis(4-(3 or 4-aminophenoxy)phenyl)hexafluoropropane, diester of aromatic tetracarboxylic acid and polyamide |
| 04/03/1990 | US4913697 Thermosetting resin composition from alkenylaryloxy triazine |
| 04/03/1990 | CA1267488A1 Polyimide and high-temperature adhesive of polyimide |
| 03/28/1990 | EP0360709A1 Process for the preparation of thermally stable copolyimide amides containing diorganopolysiloxane groups |
| 03/28/1990 | EP0360708A1 Polyamide imide yarns and their production |
| 03/28/1990 | EP0360707A1 Polyamide-imide solutions and their preparation process |
| 03/27/1990 | US4912197 Highly soluble clear polyimides |
| 03/27/1990 | US4912176 Sintered polybenzimidazole/polyaryleneketone articles and method of manufacture |
| 03/22/1990 | WO1990002767A1 Process for lowering the dielectric constant of polyimides using diamic acid additives |
| 03/22/1990 | WO1990002763A1 Dispersions of electrically conducting polymers |
| 03/21/1990 | EP0359341A2 1,6-diazaspiro[4,4]nonane-2,7-dione derivatives |
| 03/21/1990 | EP0359340A2 Spirodilactam polymers |
| 03/21/1990 | EP0358783A1 Polyimide molecular weight enhancement by solvent extraction |
| 03/20/1990 | US4910342 Reacting ethylenediamine with an ethanolamine in a fixed bed catalytic process |
| 03/20/1990 | US4910308 2,5-distyrylpyrazines |
| 03/20/1990 | US4910293 Langmuir-Blodgett films of polymers having pendent C10 -C30 hydrocarbon groups |
| 03/20/1990 | US4910288 Reacting an aromatic bis(ether anhydride) with an organic diamine; heating |
| 03/20/1990 | US4910268 Acryl type macromonomer having a polyethyleneimine derivative chain and process for producing the same, as well as graft polymer having a polyethyleneimine derivative chain as the graft chain and process for producing the same |
| 03/20/1990 | US4910265 Process for producing thermoset resin |
| 03/14/1990 | EP0358036A2 Aliphatic-aromatic Polyamidimides |
| 03/14/1990 | EP0358020A2 Process for preparing polyamideimides |
| 03/13/1990 | US4908442 May have metal complexed therein |
| 03/13/1990 | US4908430 From 2,2-bis-phthalic acid anhydro-(4)-propane and 2,2-bis-(4-aminophenoxyphenyl)-propane |
| 03/13/1990 | US4908429 From 2,2-bis-phthalic acid anhydro-(4)-propane and 2,2-bis-(4-aminophenoxyphenyl)-propane |
| 03/13/1990 | US4908426 Polyphenylquinoxalines via aromatic nucleophilic displacement |
| 03/13/1990 | US4908409 Polyimide |
| 03/13/1990 | US4908086 Low-cost semiconductor device package process |
| 03/13/1990 | CA1266747A1 Curable composition |
| 03/08/1990 | WO1990001919A1 Polymeric skin colorant |
| 03/07/1990 | EP0357558A1 Bisimides of allyl-substituted or methallyl-substituted bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid |
| 03/07/1990 | EP0357367A2 Terminal-modified aromatic imide oligomer composition |
| 03/07/1990 | EP0357106A1 Aromatic amide groups-containing diamines and polymers prepared therefrom |
| 03/06/1990 | US4906731 Polyimide molecular weight enhancement by solvent extraction |
| 03/06/1990 | US4906730 Polyetherimide blends, and molding method |
| 03/06/1990 | US4906538 Non-aqueous secondary cell |
| 02/28/1990 | EP0356379A1 Resins curable into fire-retardant and heat-resistant plastic materials, and method for their preparation |
| 02/28/1990 | EP0356208A2 Membrane filter material having excellent organic solvent resistance, method for formation of membrane filter and process for preparation of bismaleimide polymer to be used for membrane filter |
| 02/28/1990 | EP0355927A2 A precursor of a low thermal stress polyimide and a photopolymerizable composition containing a polyimide precursor |
| 02/28/1990 | EP0355926A2 Alkenyl-modified polyimides |
| 02/28/1990 | EP0355367A1 High molecular weight polyimide, method of making same and articles formed therefrom |
| 02/28/1990 | EP0355151A1 Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom |
| 02/27/1990 | US4904760 Thermosetting resin composition from cyanate ester and non-branched aromatic compound |
| 02/27/1990 | US4904758 Low-melting polyimide copolymer and method for preparing the same |
| 02/27/1990 | US4904553 Polyaniline |
| 02/22/1990 | WO1990001775A1 High service temperature conductive polymers and method of producing same |
| 02/22/1990 | WO1990001514A1 Flame resistant article made of phenolic triazine and related method |
| 02/22/1990 | EP0229757A4 A method of bonding two substrates using arylcyclobutene monomeric compositions. |
| 02/20/1990 | US4902760 Cross-linked resins |
| 02/20/1990 | US4902750 Latent catalysts for heat curable thermosetting resins |
| 02/20/1990 | US4902740 Heat, chemical resistant molding materials |
| 02/14/1990 | EP0354889A2 A method of controlling microbiological deposits on paper making equipment and paper obtained thereby |
| 02/14/1990 | EP0354500A2 Thermosetting bismaleinimide molding masses |
| 02/14/1990 | EP0354361A1 High molecular weight polyimides with improved properties |
| 02/14/1990 | EP0354360A1 Copolyimides derived from 2,2-bis (amino phenyl) hexafluoropropane |
| 02/14/1990 | EP0354281A1 A deodorant composition and use thereof |
| 02/14/1990 | CN1039602A Resins which may be cured to form polymeric resins which are difficultly inflammable and resistant to high temp., and process for preparing them |
| 02/13/1990 | US4900807 Polymer from nitrile terminated compounds having Schiff bonds and process for preparing the same |
| 02/13/1990 | US4900761 Heating precursors to foam, curing |
| 02/13/1990 | US4900544 Cationic polymers as antistatic additives for hair preparations |
| 02/13/1990 | US4900543 An epoxidized, animated 1,3-diene homo-or copolymer salt; rinses; shampoos containing anionic surfactants |
| 02/07/1990 | EP0354185A2 Piperidine-triazine compounds for use as stabilizers for organic materials |
| 02/07/1990 | EP0353645A2 Process for preparing high-purity 5,5-[2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene] bis-1,3-isobenzofuran dione |
| 02/06/1990 | USH729 Aromatic polyisoimides |
| 02/06/1990 | US4898923 Polypyridinium copolymer |
| 02/06/1990 | US4898917 N-substituted polybenzimidazole polymer |
| 02/06/1990 | US4898806 Irbadiating and heating polyamic acids to polyimides |
| 02/06/1990 | US4898753 Having surface protrusions; coating polyimide film with polyamic solution containing silica, heat treatment |
| 02/06/1990 | CA1265641A1 Star/comb-branched polyamides and star/comb-branched polyamine derivatives thereof |
| 01/31/1990 | EP0352882A1 Method for making electrically conductive textile materials |
| 01/31/1990 | EP0352868A1 Bismaleimide-containing thermosetting composition |
| 01/31/1990 | EP0352718A2 Partially fluorinated compounds and polymers |
| 01/30/1990 | US4897482 Heating monomeric compound in presence of polybasic aliphatic acid and water |
| 01/30/1990 | US4897461 Amphiphilic polyimide precursor and process for preparing the same |
| 01/30/1990 | US4897092 Polyimide membrane having improved flux |
| 01/30/1990 | CA1265293A1 Polymers containing imide groups and process for preparing the same |
| 01/24/1990 | EP0351936A1 Polyetherketoneimides |
| 01/24/1990 | EP0351814A2 Poly (N-cyclic iminoether), processes for production thereof, thermosetting composition containing it and thermoset resin |
| 01/23/1990 | US4895972 Process for lowering the dielectric constant of polyimides using diamic acid additives |
| 01/23/1990 | US4895942 Novel epoxy compounds |
| 01/23/1990 | US4895915 Bis[4-(3,4-dimethylene-pyrrolidyl)phenyl] methane |
| 01/23/1990 | US4895820 Catalytic process for the preparation of linear polyethylenepolyamines using a titania-supported phosphamine catalyst for the preparation of linear polyethylene polyamines |
| 01/17/1990 | EP0350618A2 Carrier resin for pigment pastes, its preparation and use |
| 01/16/1990 | US4894414 Rubber-modified cyanate ester resins and polytriazines derived therefrom |
| 01/11/1990 | DE3921249A1 Ir-absorbierende textilien Ir-absorbing textiles |
| 01/10/1990 | EP0350203A2 Process for preparing polyimide having excellent high temperature stability |
| 01/10/1990 | EP0349773A2 Continuous preparation process of aromatic polycondensates |
| 01/10/1990 | EP0349720A2 Polyetherimide blends, and molding method |
| 01/10/1990 | CN1006394B Aromatic polyimide composition |
| 01/09/1990 | US4892953 Benzthiazole substituted diacid terphenyl monomers |
| 01/09/1990 | US4892921 Pendant benzazole rigid-rod aromatic benzoxazole |
| 01/09/1990 | US4892896 Processing polyimide precursor compositions |
| 01/09/1990 | US4892733 Drug delivery, homo-and co-polymers of aspartic and glutamic acid |
| 01/09/1990 | CA1264332A1 Polyamide-imide powders, their manufacture and their use |
| 01/08/1990 | EP0245244A4 A process for continuously preparing aromatic polyamines with ion exchange resin catalysts. |
| 01/03/1990 | EP0349269A2 Flexible copper-clad substrates |
| 01/03/1990 | EP0349010A1 Polyimide copolymers |