Patents
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)
01/1984
01/31/1984US4429073 Polyetherimide compositions and processes for production
01/31/1984US4429072 Polyesterimide copolymers
01/31/1984US4428977 Polyamideimide copolymers
01/25/1984EP0099268A1 Process for producing polymaleimide
01/24/1984US4427822 Polyisocyanate, anhydride
01/24/1984CA1161190A1 Copolymers of etherimides and amideimides
01/24/1984CA1161189A1 Copolymers of etherimides and amides
01/18/1984EP0098681A2 Novel dinitrobenzophenone solution and process for preparing an ether solution of diaminobenzophenones therefrom
01/18/1984EP0098350A2 Process for producing aromatic polyamide-imide
01/11/1984EP0098006A2 Isocyanurates and their preparation
01/10/1984US4425527 Optical filters comprising pyrolyzed polyimide films and lamp
01/10/1984US4425460 Amine terminated polyalkylene oxide neutralized sulfonated thermoplastic polymers
01/10/1984US4425441 Closed cell polyimide foams and methods of making same
01/10/1984CA1160392A1 Process for preparing polymers containing silicon modified imide groups
01/10/1984CA1160209A1 Air- and/or oven-drying lubricant paint compositions for producing dry-film lubricants
01/04/1984EP0097411A1 Foamed polyimide and polyamide-imide, and production thereof
01/04/1984EP0097298A2 Polyamines, process for producing polyamines and their use in the production of polyurethanes
01/04/1984EP0097290A1 Single step process for the preparation of polyamines from NCO prepolymers, polyamines and their use in the production of polyurethanes
01/03/1984US4424366 Tricyclic imidyl derivatives
12/1983
12/27/1983US4423231 Tricyclic imidyl derivatives
12/27/1983US4423202 From dihydroxy- or dimercaptophenylenediamine, aromatic di-acyl halide, polyphosphoric acid
12/27/1983US4423111 Polyetherimide resin and electrical conductors insulated therewith
12/27/1983US4422944 Flocculant is water soluble polymer of aniline, formaldehyde, and a polyamine
12/27/1983US4422853 And oxidation hair dye
12/20/1983US4421929 Tetracarboxylic acids
12/20/1983US4421905 Process for preparing polyimides end-capped with anhydride or isocyanate groups
12/13/1983CA1158646A1 Polytriazinylamines, process for their preparation, their use as stabilizers for synthetic polymers, and polymers stabilized with these compounds
12/08/1983WO1983004257A1 Process for making polyetherimides
11/1983
11/30/1983EP0095348A2 High molecular weight polybenzimidazoles
11/30/1983EP0095174A2 Process for making polyetherimides
11/29/1983US4418200 Tricyclic imidyl derivatives
11/29/1983US4418199 Tricyclic imidyl derivatives
11/29/1983US4418190 From 1,2,3,4 butane tetracarboxylic acid and multifunctional amine
11/29/1983US4418181 Polyimides having bis-maleimide terminal groups
11/29/1983US4418054 Polymeric quaternary ammonium compounds for skin care
11/22/1983US4417058 Tricyclic imidyl derivatives
11/22/1983US4417045 Prepared from tricyclo (6.4.0.0(2.7))dodecane-3,6-diphenyl-1,8,4,5-tetracarboxylic acid dianhydride
11/22/1983US4417044 Process for making polyetherimides
11/22/1983US4417043 Anisotropic melt-forming polymer
11/22/1983US4416973 Radiation-sensitive polyimide precursor composition derived from a diaryl fluoro compound
11/22/1983US4416729 Ammonium polyamidoamines
11/15/1983CA1157190A1 Polyarylate blends with polyetherimides
11/09/1983EP0093693A2 Process for the preparation of polyaminotriazines
11/09/1983EP0093434A2 Preparation of polyalkylene polyamines
11/09/1983EP0093342A1 Copolyamide acid and copolyimide
11/08/1983US4414394 Photocrosslinkable polymers for offset printing plates and photoresists
11/08/1983US4414383 High molecular weight polybenzimidazole preparation with phosphorus containing polymerization catalyst
11/08/1983US4414366 Low color compositions comprising a cross-linked polycyanurate polymer and a thermoplastic polymer
11/08/1983US4414269 Containing condensation product of amino-phenol and acid anhydride, an aromatic polyol, and aromatic dihalide
11/08/1983US4414068 Having pendant n-methylol-amide groups
11/08/1983CA1156796A1 Process for preventing cristallization of n,n'-diphenylene bis(imides) in thermosetting compositions containing the same
11/02/1983EP0092883A1 Method of demulsifying emulsions of oil and water with heterocyclic ammonium polyamidoamines
11/02/1983EP0092846A1 Process for producing a polyimide solution
11/01/1983US4413117 Use of water-entraining agent
11/01/1983US4413115 Copolyimides-polyamides from aliphatic and aromatic anhydrides, dicarboxylic acids, and diamines
11/01/1983US4413107 Imido thermosetting compositions storage-stabilized against recrystallization of bis-imides therefrom
11/01/1983US4412884 Adhesive bonding method employing diene bis-imide polymers
10/1983
10/27/1983WO1983003609A1 Dielectric films from water soluble polyimides
10/25/1983US4411796 Polyaminic resin for the selective separation of heparin from other glucosaminoglycanes and method for the preparation thereof
10/25/1983CA1155999A1 Particulated polyetherimide and method for making
10/25/1983CA1155988A1 Polymeric well treating method
10/25/1983CA1155736A1 Method of etching polyimide
10/18/1983US4410676 Phenolic-cured phthalonitrile resins
10/18/1983US4410666 Aromaltic polycycanate, polyhydantoin
10/18/1983US4410664 Polyimide-epoxy thermoset resins
10/18/1983US4410658 Polyimides-amides and copolyimides-polyamides from tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride, dicarboxylic acids and a mixture of diamines
10/18/1983US4410568 Process for preparing selective permeable membrane
10/12/1983EP0090927A2 Carbinol containing polyimides and use thereof for the preparation of cross-linked products
10/11/1983US4409382 Synthesis and polymerization of phthalonitrile monomers containing multiple phenoxy and sulfone linkages
10/11/1983US4409348 Poly-bis-triazinylaminotriazinylamines, their preparation and their use as light stabilizers for plastics, and plastics which have been stabilized with them
10/11/1983CA1154921A1 Process for producing aromatic polyimide filaments
10/05/1983EP0090117A1 Alkoxylated quaternary ammonium salts
10/04/1983US4408035 Polyisoindoles, heat resistant coatings
10/04/1983US4408032 Modified polyamide-imide resins and method for making the same
10/04/1983US4407994 Aqueous sizing composition comprising ketene dimer and epihalohydrin/polyamino polyamide/bis(hexamethylene)triamine reaction product
10/04/1983US4407980 Closed cell polyimide foams and methods of making same
09/1983
09/28/1983EP0089477A1 Polymer coating composition
09/20/1983US4405770 Adhesives, molding materials
09/20/1983US4405704 Triphenylmethane polymer, process for production thereof, and photoconductive compositions and members formed therefrom
09/13/1983US4404362 Block polymers of alkanolamines
09/13/1983US4404350 Silicone-imide copolymers and method for making
09/01/1983WO1983002943A1 Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and uv light stabilized compositions
08/1983
08/31/1983EP0087147A2 Cross-linked compounds from the reaction of xylylene dichloride with triethanol amine condensates, and their use
08/30/1983US4401777 Curable resin composition comprising N-(alkenylphenyl)maleimide and epoxy composition
08/30/1983US4401590 Aromatic polyamide-imide copolymer
08/30/1983US4401545 Complexed with nitro-aromatic compound
08/24/1983EP0086278A1 Process for the production of hydantoin esters
08/17/1983EP0086187A1 A surface modified solid substrate and a method for its preparation
08/17/1983EP0086066A1 Use of a quaternized polyamidoamines as demulsifiers
08/10/1983EP0085111A1 Composite semipermeable membrane, process for its production, and method of its use
08/09/1983US4398021 Solvent resistant, thermoplastic aromatic poly(imidesulfone) and process for preparing same
08/09/1983US4398009 Polyoxazole precursor and the preparation thereof
08/09/1983US4397999 Tetraamino aromatic compound, dicarboxylic acid, and glycidyl acrylate or methacrylate
08/09/1983US4397743 Water treatment method
08/03/1983EP0084784A1 N,N-bis(-beta-hydroxyalkyl)-aryl amine derivatives, process for their preparation and their use as hardening accelerators
08/02/1983US4396733 Condensation with carbonyl compound
08/02/1983US4396658 Polymer alloy coating for metal substrate
08/02/1983CA1151343A1 Process for preparing polyimide compositions and composite structures prepared therefrom
07/1983
07/27/1983EP0084269A2 Radiation-sensitive polyimide precursor composition derived from a diaryl fluoro compound
07/27/1983EP0084256A2 Polyimide-esters and filaments