| 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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| 08/11/1981 | US4283521 Curable aromatic epoxy-polyimide and cycloaliphatic epoxy-polyimide compositions |
| 08/05/1981 | EP0033224A1 Magnet wire |
| 08/05/1981 | EP0033104A2 Process for producing water-soluble condensation products and their use as cross-linking agents in producing aids for paper manufacture |
| 08/05/1981 | EP0033015A1 Electrically conductive cyclic polyimides |
| 08/05/1981 | EP0033011A1 Polyarylate blends with polyetherimides |
| 08/04/1981 | US4282201 Polyorthoesters |
| 08/04/1981 | CA1106517A1 Polyetherimide composites |
| 08/04/1981 | CA1106399A1 Deodorants and compositions containing such |
| 07/29/1981 | EP0032745A2 Ether imides and process for producing the same |
| 07/29/1981 | EP0032644A1 Process to avoid crystallisation of N-N' diphenylene bis imides in heat-curable compositions containing them |
| 07/28/1981 | US4281199 Reacting a polyoxyalkylene polyol with an epinalohydrin and then an amine; cationic polymers |
| 07/28/1981 | US4281140 Process for the preparation of hydantoins |
| 07/28/1981 | US4281102 Tackifier for addition polyimides containing monoethylphthalate |
| 07/28/1981 | US4281100 Injection moldable polyetherimide oligomers and method for making |
| 07/28/1981 | US4281095 Lacquers |
| 07/28/1981 | US4280946 Oxidation and heat resistant acrylic imide polymer products |
| 07/23/1981 | WO1981002016A1 Injection moldable amide-imide copolymers and terpolymers |
| 07/23/1981 | WO1981002015A1 Injection moldable amide-imide polymers containing divalent aliphatic radicals derived from aliphatic diamines |
| 07/23/1981 | WO1981002014A1 Injection moldable amide-imide copolymers |
| 07/21/1981 | US4279793 Mixture of a blocked polyamine and a cyclic anhydride compound |
| 07/15/1981 | EP0031956A1 Photosensitive recording material |
| 07/15/1981 | EP0031904A1 Heat-resistant thermosetting resin composition |
| 07/15/1981 | EP0031899A1 Self-crosslinking water-soluble reaction products, process for producing binding agents from such products, and use of the products to increase the wet strength of paper |
| 07/14/1981 | US4278780 Thermosetting resin composition comprising epoxy compound and reaction product of unsaturated dicarboxylic acid anhydride and excess diamine |
| 07/14/1981 | CA1105197A1 No translation available |
| 07/14/1981 | CA1105196A1 Polyaminoesters |
| 07/14/1981 | CA1105190A1 Process for the hydrolysis of poly(imino- imidazolidinediones) to polyparabanic acids |
| 07/14/1981 | CA1105189A1 Polymeric products |
| 07/14/1981 | CA1105058A1 Process for the manufacture of polyalkylenepolyamines |
| 07/14/1981 | CA1105045A1 Electrodeposition of copper |
| 07/09/1981 | WO1981001855A1 Heat curable polyimides |
| 07/07/1981 | US4277583 Polyepoxides of improved workability and heat resistance |
| 07/07/1981 | US4277582 Water-insoluble hydrophilic copolymers |
| 06/30/1981 | US4276407 Curable to yield laminating resins, molding compounds, and composites |
| 06/30/1981 | US4276352 Production of filament windings |
| 06/30/1981 | US4276344 Phosphorus-containing bisimide resins |
| 06/30/1981 | CA1104138A1 Preparation of acetylene-substituted polyimide oligomers |
| 06/23/1981 | US4275191 Polymerization of aromatic nitrogen heterocyclic compounds |
| 06/23/1981 | US4275185 Polyimides of bismaleimides and activated methylene compounds |
| 06/23/1981 | US4275054 Polyanionic polyamide salt |
| 06/23/1981 | CA1103841A1 Water-soluble polyester imide resins |
| 06/16/1981 | US4273918 Preparation of crosslinked 1,2,4-oxadiazole polymer |
| 06/16/1981 | US4273917 Acid-terminated polyester imide wire enamels |
| 06/16/1981 | US4273916 Adhesives |
| 06/02/1981 | US4271288 Tetracarboxylic acid bonded to arylene moiety via methylene groups |
| 06/02/1981 | US4271053 Quaternary ammonium graft copolymers for use as flocculants and method of preparing same |
| 05/26/1981 | US4269968 Synthesis of polyamic acid |
| 05/26/1981 | US4269966 A mixture of an acrylic compound containing imide, amide, and an amine group; molding material; crosslinked, insoluble, infusible polymer |
| 05/26/1981 | US4269961 A polyether modified by a maleimide and polyamine in combination with a trismaleimide |
| 05/26/1981 | US4269787 Bifunctional monomers having terminal oxime and cyano or amidine groups |
| 05/26/1981 | US4269752 Using 1-phenoxy-2-propanol during preparation to reduce molecular weight abatement; dielectrics |
| 05/26/1981 | US4269750 Process for the preparation of polymers containing hydantoin groups |
| 05/26/1981 | CA1101878A1 Poly[bis(aminostyryl)aryl] compounds for photoconductive elements |
| 05/20/1981 | EP0028994A2 Compositions and method for the encapsulation of electronic components by a mouldable material based on a thermohardenable prepolymer |
| 05/20/1981 | EP0028676A1 A process for manufacturing polyamic acid |
| 05/19/1981 | US4268659 Modified polyester imides, hardenable by energy-rich radiation, process for their production and their use for the insulation of electric wires |
| 05/19/1981 | US4268654 Phenylquinoxaline oligomer, acetylene-substituted phenoxybenzenes |
| 05/19/1981 | US4268647 Organic materials having meta, para-isopropylidene diphenoxy units and method |
| 05/19/1981 | CA1101437A1 Phthalic acid diesters or ester-amides substituted by alkenylamino groups |
| 05/14/1981 | WO1981001293A1 Acetylene terminated imide oligomers having improved solubilities and lower melting points |
| 05/13/1981 | EP0028419A2 Imides and process for producing the same |
| 05/12/1981 | US4267232 P-cresol solubility; heat resistance |
| 05/12/1981 | US4267231 Polyester imide wire enamels |
| 05/05/1981 | US4266047 Novel polymers of olefin terminated prepolymers and amine terminated prepolymers |
| 05/05/1981 | US4265803 Photostability and heat resistance |
| 05/05/1981 | CA1100686A2 Polyamide, polyamide-imide and polyimide polymers and process for their manufacture |
| 05/05/1981 | CA1100265A1 Sizing method and a sizing composition for use therein |
| 04/29/1981 | EP0027506A1 Precursors of polyimides, polyisoindoloquinazoline diones, polyoxazine diones and polyquinazoline diones, their preparation and use |
| 04/22/1981 | EP0027305A1 Phenanthrene-derived thermally stable polyamide-imide resins and process for their preparation |
| 04/21/1981 | US4263410 Ambient cure polyimide foam |
| 04/21/1981 | US4263181 Chemically stabilized azulmic acids, processes for their preparation and their use |
| 04/21/1981 | CA1099844A1 Silane-terminated polycarbodiimide |
| 04/15/1981 | EP0026820A1 Method of producing relief structures resistant to a high temperature, relief structures produced thereby and their use |
| 04/14/1981 | CA1099446A1 Curable mixtures based on maleimides |
| 04/14/1981 | CA1099445A1 No translation available |
| 04/14/1981 | CA1099443A1 Fibers and films of (co) polyazomethines |
| 04/14/1981 | CA1099421A1 Method for stabilizing a water-soluble composition |
| 04/08/1981 | EP0026263A2 A method for improving the mechanical strength of elastomers |
| 04/07/1981 | US4260691 Polymeric light stabilizers for plastics |
| 04/07/1981 | US4260689 Polymeric light stabilizers for plastics |
| 04/07/1981 | US4260652 Preparation of permselective composite membrane |
| 04/01/1981 | EP0026157A2 Quaternary ammonium salts from diepoxydes and diamines, their preparation and their use |
| 04/01/1981 | EP0026070A2 Polyimides of bismaleimides and activated methylene compounds and processes for their preparation |
| 03/31/1981 | US4259471 Polyphenylether-bridged polyphthalocyanine |
| 03/31/1981 | US4259183 Reverse osmosis membrane |
| 03/31/1981 | US4259102 Composition comprising useful agent such as fertilizers, housed in heterocyclic polymer |
| 03/31/1981 | CA1098644A1 Hydrolysis-stable polytriazines and a process for their production |
| 03/31/1981 | CA1098643A1 Process for the production of non-inflammable polytriazines |
| 03/31/1981 | CA1098523A1 Cationic polymer flocculant |
| 03/25/1981 | EP0025506A1 Polyoxazole precursors, their preparation and their use |
| 03/24/1981 | US4258173 Polyphosphazene polymers containing monoetheroxy and polyetheroxy substituents |
| 03/24/1981 | US4258172 Alkylated phosphazene oligomers and polymers and method of preparation thereof |
| 03/24/1981 | US4258171 Polyphosphazene polymers containing substituted alkyl/cycloalkyl substituents |
| 03/24/1981 | US4258146 Organic fillers for elastomers |
| 03/24/1981 | CA1098245A1 Crosslinkable polymeric compounds |
| 03/11/1981 | EP0024592A1 Polyimidazoles and polyimidazopyrrolone precursors and their preparation |
| 03/10/1981 | US4255471 Aromatic bis/etherdicarboxylic acid/ compounds and an aromatic diamine in water and an aprotic solvent or an alkyl ether of ethylene- or diethylene-glycol; storage stability |
| 03/10/1981 | US4255313 Novel end-capped polyimide oligomers |
| 03/04/1981 | EP0024338A1 Triazine derivatives, their preparation and their use as stabilising agents for synthetic polymers |
| 03/03/1981 | US4254255 Aqueous reaction of polyamine with alkylene dihalide in presence of emulsifier |