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)
08/1990
08/29/1990EP0384698A2 Thermosetting polyimide prepolymers
08/29/1990EP0384518A1 Alkenylphenol derivatives
08/29/1990EP0384247A2 Process for the preparation of amide and/or imide group-containing polyhydantoins
08/29/1990EP0384245A2 Process for the preparation of thermoplastically processable polyhydantoins
08/29/1990EP0384138A2 Blends of polyesters and high flow polycarbonate
08/28/1990USRE33315 Wholly aromatic mesomorphic polyester amide imides and the preparation thereof
08/28/1990US4952669 And an aromatic tetracarboxylic acid; improved solubility; melt spinning; fibers; films; compression moldings
08/28/1990US4952667 Amino resins from substituted amine, carbazole or phenoxazine monomers; strength, workability
08/28/1990US4952666 Hexafluoroisopropylidene-containing polyimide oligomers and polymers
08/28/1990US4952611 Aromatic diamines and esters of tetracarboxylic acuds abd dicarboxylic cyclohexenyl succinic acid
08/28/1990US4952220 Surface treatment using high energy electromagnetic radiation
08/27/1990CA2010463A1 Polyimide membrane having improved flux
08/27/1990CA2009085A1 Coatings of intermediate molecular weight polyimides
08/27/1990CA2009084A1 Polyamide-imide polymers having fluorine-containing linking groups
08/27/1990CA2009083A1 Polyamide-imide polymers having 12-f fluorine-containing linking groups
08/27/1990CA2009082A1 Shaped articles from polyamide-imide polymers having fluorine-containing linking groups
08/27/1990CA2009078A1 Polyamide-imide polymers having fluorine-containing linking groups
08/27/1990CA2008871A1 Substituted phenyl polybenzimidazole polymers
08/25/1990CA2050348A1 Phenylated polyimides prepared from 3,6-diarylpyromellitic dianhydride and aromatic diamines
08/23/1990CA2010655A1 Process of preparing linearly-extended polyalkylenepolyamines
08/23/1990CA2010537A1 Alkenylphenol derivatives
08/22/1990EP0383174A2 Toughened thermosetting structural materials
08/22/1990EP0382864A1 Process for the production of high molecular weight polyamide-imide resin
08/22/1990CN1044809A Process for the catalytic reforming of alkyleneamines to linearly-extended polyalkylenepolyamines
08/21/1990US4950789 Aromatic polyalkyleneoxy polyamines containing amioncarbonyl or aminothiocarbonyl moieties and a compatible mixture of high and low molecular weight polyols made therefrom
08/21/1990US4950734 Compositions for production of electronic coatings
08/21/1990US4950728 Thermally stable (imide/amide)/(urea/siloxane) block copolymers
08/21/1990US4950700 From diisocyanate and aromatic acid anhydride
08/21/1990CA2008324A1 Thermosetting polyimide prepolymers ]
08/21/1990CA1273026A1 Vinylbenzyl ethers of polyhydric halogenated phenolic compounds
08/16/1990WO1990009405A1 Ammonium compound, composition containing it and desinfection method
08/16/1990EP0382562A1 Polymeric quaternary ammonium trihalides useful as microbicides, sanitizers and disinfectants
08/16/1990EP0382198A2 Polyimidesiloxanes and methods for their preparation and use
08/16/1990CA2027548A1 Ammonium compound, composition containing same and disinfection process
08/15/1990CA2009383A1 Method of producing new flame-retardant thermostable homopolyimides, these homopolyimides, a moulded article obtained therefrom and a fibre produced from these homopolyimides
08/14/1990US4948867 Polyamide containing pendant mercapto groups; miscible with matrix polymers of composites; converted by heat treatment to cyclize
08/14/1990US4948863 Thermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid imide
08/14/1990US4948579 Quaternized polymer for use as a cosmetic agent in cosmetic compositions for the hair and skin
08/14/1990US4948400 Aromatic polyimides
08/10/1990CA2009697A1 Polymeric quaternary ammonium trihalides and use of polymeric quaternary ammonium trihalides as microbicides, sanitizers and disinfectants
08/09/1990WO1990008808A1 Processable, high molecular weight polyaniline and fibers made therefrom
08/09/1990WO1990008797A1 Thermoplastic polyimide and polyketone elastomers
08/09/1990WO1990008796A1 Polyhydric phenols as chain extenders for certain bismaleimide resins
08/08/1990EP0381621A2 New polymeric products
08/08/1990EP0381620A2 Process for the preparation of crosslinked products and new polymeric materials
08/08/1990EP0381619A1 Polymers
08/08/1990EP0381506A2 Silicon polyimide precursor composition
08/08/1990CN1044473A Cyanate ester resin blends with brominated styrene-containing polymers
08/07/1990US4946935 Fluorine-containing aromatic compound, process for preparing the same and use thereof
08/07/1990US4946928 Thermally stable composites; high glass transition temperature
08/07/1990US4946908 Bismaleimide compositions containing high glass transition temperature and soluble reactive oligomers and composites prepared therefrom
08/07/1990US4946873 Liquid; react with polyisocyanates to form fire retardant polyimide foams
08/07/1990US4946734 Resin composition for printed circuit board and such board formed by use thereof
08/02/1990CA2009018A1 Polyhydric phenols as chain extenders for certain bismaleimide resins
08/01/1990WO1990008795A1 High-molecular polyimidoylamidine and polytriazine derived therefrom
08/01/1990EP0380017A2 A process for the preparation of triazinic polymers
08/01/1990CN1009043B Secondary cell
08/01/1990CA2008860A1 Process for the preparation of crosslinked products and novel polymers
08/01/1990CA2008859A1 Novel polymers
08/01/1990CA2008858A1 Novel polymers
07/1990
07/31/1990US4945170 Method for making polyimides and products produced thereby
07/31/1990US4945169 Novel bis-maleimide compounds containing sulfonate linkages
07/31/1990US4945156 Decomplexing polymer-lewis acid complex to regenerate
07/31/1990US4944902 Polyimide compositions and processes
07/31/1990US4944880 Polyimide/aliphatic polyester copolymers
07/31/1990US4944824 Process for preparation of tooling of carbon fiber reinforced polyimide for composites manufacture
07/31/1990CA1272338A1 Adhesive compositions from arylcyclobutene monomeric compositions
07/26/1990WO1990008175A1 Varnish binder
07/26/1990WO1990008137A1 Preparation of imides
07/26/1990WO1990008136A1 Preparation of amide-imides
07/26/1990DE3900715A1 Apatite-containing polymer compositions
07/25/1990EP0379467A2 Nitrogen-containing polymers with terminal hydroxyl groups
07/25/1990EP0379377A2 Process for preparing photosensitive heat-resistant polymer
07/25/1990EP0379228A2 Process for the preparation of polymers containing imide groups from bis-imides and alkenyloxyanilines
07/25/1990EP0379161A2 Use of alkylated polyethyleneimines as therapeutic agent adsorbing bile acid and pharmaceutical compositions thereof
07/25/1990EP0379131A2 Thermosetting resin composition
07/25/1990EP0379107A2 Use of polyamide amines as curing agents for epoxy resins, and curable mixtures containing them
07/24/1990US4943682 Production of particulate polyimide polymers
07/24/1990US4943594 Polyimide foam
07/24/1990CA2008353A1 Process for the preparation of triazinic polymers
07/20/1990CA2008114A1 Alkylated polyethylenimine derivatives, process for their preparation, their use as pharmaceuticals and pharmaceutical preparation
07/20/1990CA2008030A1 Nitrogen-containing polymers having terminal hydroxyl groups
07/19/1990DE3901281A1 Highly water-absorbent, crosslinked copolymers of polyethyleneimine and polyethylene glycol
07/18/1990EP0378457A2 Aromatic allyl amine thermosetting resin composition
07/18/1990EP0378106A2 High-temperature-resistant polysulfone-polyimide block copolycondensates, their preparation method and their use
07/18/1990EP0378105A2 High-temperature-resistant polysulfone-polyimide block copolycondensates, their preparation method by melt-condensation, and their use
07/18/1990EP0378103A2 Cyanate ester resin blends with brominated styrene containingpolymers
07/18/1990EP0202259B1 Siloxane-containing polymers
07/18/1990CA2044597A1 Thermoplastic polyimide and polyketone elastomers
07/17/1990CA1271758A1 Polymeric compounds containing piperidine radicals and their use as stabilizers for synthetic polymers
07/17/1990CA1271651A1 Plastic optical fibers
07/12/1990WO1990007548A1 Vinylic resin composition
07/12/1990WO1990007337A1 Thickening agents for aqueous systems
07/11/1990EP0377324A2 Substituted polyaminotriazines and the method of their preparation
07/11/1990EP0119271B1 Liquid crystalline polymer compositions, process, and products
07/11/1990CA2007465A1 Cyanate ester resin blends with brominated styrene-containing polymers
07/10/1990US4940848 Stable solutions of prepolymers of thiodi(phenylcyanate) and laminating method employing same
07/10/1990US4940640 High capacity polyaniline electrodes
07/10/1990US4940517 Polymerization of aniline and its derivatives
07/10/1990CA1271584A1 Homopolymers, copolymers and coated material and its use