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)
07/1990
07/04/1990EP0376892A2 Curable polyamides, polyamide-amide acids, polyimides, and their cyclised derivatives
07/04/1990EP0376592A2 Polyimide foam
07/04/1990EP0376380A1 Polymer processeable from the melt
07/04/1990EP0376337A2 Production of polyimide foams
07/04/1990EP0376333A2 Method for manufacturing polyimide thin film and apparatus
07/04/1990EP0375960A1 Thermoplastic, liquid-crystalline, wholly aromatic polyimide ester and method of producing the same
07/04/1990EP0375682A1 Fire resistant foam composed of predominantly amide and imide linkages
07/03/1990US4939305 Alkenyl compounds
07/03/1990US4939270 Spirodilactam diamines
07/03/1990US4939251 And spirolactams, curing agents, epoxy resins
07/03/1990US4939227 Novel thermoplastic polymers
07/03/1990US4939223 Silicon-modified polyimides
07/03/1990US4939215 Heat resistant polybenzoxazole from bis-((aminohydroxyphenyl)hexafluoroisopropyl)diphenyl ether
07/03/1990US4939214 Film comprised of at least one monomolecular layer and process for its preparation using a higher alkyl amine
07/03/1990US4939210 Process for producing parabanic acid ring-containing polymer
07/03/1990US4939039 Flexible base materials for printed circuits and method of making same
07/03/1990US4938957 Deodorant composition and use thereof
07/03/1990US4938902 Process for producing aromatic imide polymer hollow filaments
07/03/1990CA2004943A1 Polyimide precursors and method for preparing crosslinked polyimides using said precursors
07/03/1990CA1271290A1 Cationic polycondensate fixing agents
06/1990
06/30/1990CA2006949A1 Production of polyimide foams
06/30/1990CA2006763A1 Crosslinkable polyamides, polyamide-amic acids, polyamic acids and the derivatives which are cyclised to the corresponding polyamide-imide or polyimide
06/28/1990WO1990007026A1 Colouration of polypropylene
06/28/1990WO1990006960A1 Improved process for synthesis of heterocyclic polymers
06/27/1990EP0375355A2 Process for the catalytic reforming of alkylene amines to linearly-extended polyalkylene polyamines
06/27/1990EP0375079A2 Alkenylphoxylimide modified polyimide
06/27/1990EP0374938A1 Process for producing aqueous solution of cationic thermosetting resin
06/27/1990EP0374518A1 Bisphenol-A dianhydride-based polyimide matrix resins and method of preparation
06/27/1990CA2006389A1 Ic socket
06/26/1990US4937356 Reacts with aromatic diamine giving acetylene terminated aspartimides; chemical intermediates; composites with improved mechanical properties
06/26/1990US4937318 Aromatic amine resins
06/26/1990US4937317 From 4,4'-isophthaloyldiphthalic anhydride and m-phenylenediamine
06/26/1990US4937316 Process for preparing polyimides
06/26/1990US4937133 Flexible base materials for printed circuits
06/26/1990US4937060 Coated inorganic materials
06/26/1990EP0355151A4 Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom.
06/26/1990CA1270998A1 Thermosetting resin composition
06/26/1990CA1270974A1 Epoxy resin composition
06/26/1990CA1270856A1 Process for decolorizing polyethylene polyamines
06/23/1990CA2006609A1 Alkenylphenoxyimide modified polyimide
06/22/1990CA2006369A1 Process for synthesis of heterocyclic polymers
06/21/1990DE3940731A1 Electrically conductive copolymers of pyrrole - obtd. by reacting pyrrole and/or aniline and amino gp. contg. phthalocyanine(s)
06/20/1990EP0373952A2 Photosensitive resin composition and photosensitive element using the same
06/20/1990EP0373892A1 Tetramethyl piperidyl terminated triazine oligomeric esters and amides
06/20/1990EP0373779A1 Melamine-based light stabilizers for plastics
06/20/1990EP0373647A2 Production of particulate polyimide polymers
06/20/1990EP0231361B1 Polyimide - poly ( arylketone ) blends
06/20/1990CA2005964A1 Catalytic reforming of alkyleneamines to linearly-extended polyalkylenepolyamines
06/19/1990US4935523 Solvent resistent, high strength polyamide, polyimides
06/19/1990US4935490 Highly soluble aromatic polyimides
06/19/1990US4935489 Linear alternating, thermoplastic polyethers; high glass transition temperature; dimensional stability
06/19/1990US4935478 Unsaturated imide and benzaldehyde derivative containing hot-curable composition of matter
06/19/1990US4935163 High service temperature conductive polymers and method of producing same
06/19/1990CA1270592A1 Heat-curable polymers which contain imide groups and process
06/15/1990CA2004070A1 Production of particulate polyimide polymers
06/14/1990WO1990006329A1 Thermal insulator made of phenolic triazine and related method
06/13/1990EP0372979A2 Hole transporting material
06/13/1990EP0372935A2 Diimidodicarboxylic acids and process for the productionn thereof
06/13/1990EP0372775A1 Thermosetting-resin-forming compositions
06/13/1990EP0372009A1 Conductive polymer materials and method of producing same
06/12/1990US4933468 Preparation of amide-imides
06/12/1990US4933467 From carbon monoxide, an o-dihalo aromatic compound or cis-1,2-vinyl dihalide and primary amine, palladium catalyst
06/12/1990US4933466 Preparation of imides
06/12/1990US4933463 That increase solubility and decrease toxicity of organic compounds
06/12/1990US4933397 Preparation of N-substituted phenyl polybenzimidazole polymers
06/12/1990US4933132 Process of making a shaped article from intermediate molecular weight polyimides
06/12/1990US4932983 Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines
06/12/1990US4932982 Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines
06/07/1990DE3939656A1 Neue vollaromatische mischpolyamide, verfahren zu ihrer herstellung und verwendung derselben zur herstellung von fasern und filmen New fully aromatic polyamide mixture, process for their manufacture and use thereof for the manufacture of fibers and films
06/06/1990EP0371640A1 A compound containing an oxamic acid group, a process for producing the compound, and a resin composition containing the compound
06/06/1990EP0371313A2 Polyimide siloxanes and methods for their preparation and use
06/06/1990EP0371154A1 Prepreg of reinforced imide oligomer
06/05/1990US4931545 Flame retardant polycyanate ester blend
06/05/1990US4931541 Ethynylation of halogenated benzoxazinone followed by condensation with aromatic primary diamine and bulk poly; heat resistance; adhesives, electronics
06/05/1990US4931540 Polyimides or oligomers; molding materials, photoresists, adhesives; heat, oxygen resistant
06/05/1990US4931539 Containing 4,4*-(2,2,2-trifluoro-1-(trifluoromethyl)-ethylidene)bis(1,2 -benzenedicarboxylic anhydride); protective coating for electronics
06/05/1990US4931532 Condensing dicarboxlyic acid with 4,4'-hexafluoroisoproplidene bis(2-aminophenol), dehydrating agent; low glass transition temperature
06/05/1990US4931531 Polyimide and high-temperature adhesive thereof
06/05/1990US4931512 Process for producing a thermoset resin
06/05/1990US4931496 Damage tolerant fiber-reinforced composites based on cyanate ester/urea thermosetting composition
06/05/1990US4931182 Membranes formed from unsaturated polyimides
05/1990
05/31/1990WO1990005754A1 Polyquinoline copolymers
05/30/1990EP0370723A1 A polyimide having a low elastic modulus and the production thereof
05/30/1990EP0370509A2 Composite polymeric membranes for the separation of gas mixtures and their preparation
05/29/1990US4929716 Hot melt adhesives, polyether, polyesters, copolymers
05/29/1990US4929658 Polyamides, polyimides from diacids, diamines, tetracarboxylic acids
05/29/1990US4929405 Ultrathin polyimide polymer flims and their preparation
05/29/1990US4929309 Nitrogen-containing water-soluble polymeric compounds
05/29/1990CA1269795A1 Amphiphilic polyimide precursor and process for preparing the same
05/29/1990CA1269782A1 Injection moldable-polyamide-imide-phthalamide copolymers containing polyetherimides
05/29/1990CA1269664A1 Quality of catalytically prepared polyalkylene polyamines
05/29/1990CA1269576A1 Sizing agents
05/28/1990CA2003664A1 Thermosetting-resin-forming compositions
05/28/1990CA2003582A1 Thermal insulator made of phenolic triazine and related method
05/23/1990EP0369527A2 Curable resin compositions
05/23/1990EP0198865B1 Preparation of monomers
05/22/1990US4927909 Pinhole-free, self-supporting
05/22/1990US4927907 Copolymers
05/22/1990US4927906 Novel polyamideimide polymers
05/22/1990US4927900 Prepared from aromatic diisocyanate, aromatic tricarboxylic acid anhydride and an aromatic maleimido substituted monocarboxylic acid