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)
08/1989
08/01/1989US4853261 Process for the preparation of coatings with hydantoin structures by the reaction of compounds containing carbodiimide groups with unsaturated carboxylic acids
08/01/1989US4853127 Microporous membrane
07/1989
07/27/1989WO1989006665A1 Flame resistant polyaromatic cyanate resins with improved thermal stability
07/27/1989WO1989006647A1 Aromatic polycyanate/monocyanate comonomer compositions and polytriazines derived therefrom
07/26/1989EP0325054A2 Surfactant composition
07/26/1989EP0324908A2 Improved friction resistant composition
07/25/1989US4851562 Aromatic amide groups-containing diamines and polymers in which these diamines are incorporated
07/25/1989US4851544 Copolymerizes with dismaleimide forming soluble, heat resistan t, melt processable polymer
07/25/1989US4851532 Ionene polymeric compositions, their preparation and use
07/25/1989US4851505 Highly soluble aromatic polyimides
07/25/1989US4851501 Polyethersulfone prepregs, composites, and blends
07/25/1989US4851495 Polyetherimide oligomer
07/25/1989US4851487 Conductive polymer materials and method of producing same
07/25/1989US4851280 Composite tooling for composites manufacture
07/25/1989US4851279 Flame resistant, nused in brakes, clutches
07/19/1989EP0324615A2 Metal oxide superconducting polymer composites
07/19/1989EP0324315A2 Polyamide-polyimide block copolymers
07/19/1989EP0324288A2 Thermoplastic polyimides
07/18/1989US4849501 Polyimide coating compositions based on meta-dialkyldihydrogen pyromellitate and aromatic diamines
07/18/1989US4849492 Heat resistant films
07/18/1989US4849490 Heat stable
07/18/1989US4849485 Heterocyclic styryl compounds and reaction products
07/18/1989US4849051 Heat resistant positive resists and method for preparing heat-resistant relief structures
07/12/1989EP0323912A1 Low-melting polyimide copolymers and the preparation thereof
07/12/1989EP0323644A1 Polyimide resin and insulating film for electric and electronic devices
07/12/1989EP0323540A1 Conductive, thermally stable oligomers
07/12/1989EP0323509A1 Process for preparing cationic, water-soluble resin and water-treating agent containing said resin
07/12/1989EP0112845B1 Method for making silylnorbornane anhydrides
07/11/1989US4847359 Diamino-9,10-dihydroanthracenes and polyamide acid (esters) and polyimides derived therefrom
07/11/1989US4847358 Process for producing polyamide acid having siloxane bonds and polyimide having siloxane bonds and isoindoloquinazolinedione rings
07/11/1989US4847353 Resins of low thermal expansivity
07/11/1989US4847350 Dehydration, condensation polymerization, acid catalysts
07/11/1989US4847349 Polyimide and high-temperature adhesive of polyimide from meta substituted phenoxy diamines
07/11/1989US4847344 Heat-resistant maleimido copolymers
07/11/1989US4847343 Heat-resistant maleimido copolymers
07/11/1989US4847233 Metal acetylacetonate/alkylphenol curing catalyst for polycyanate esters of polyhydric phenols
07/11/1989US4847154 Thermosetting resin systems containing secondary amine-terminated siloxane modifiers
07/11/1989CA1257449A1 Curable resins from bisimide, amino acid hydrazine and alkenylphenol or ether
07/11/1989CA1257448A1 Poly(amide-amide acids), polyamide acids, poly- (esteramide acids), poly(amide-imides), polyimides, poly(esterimides)
07/05/1989EP0323219A2 Process for preparing heterocyclic copolymers
07/05/1989EP0323161A1 Imide prepolymer
07/05/1989EP0322778A2 Bicomponent moisture barrier poly(etherimide) ester films
07/05/1989EP0322777A1 Vapor permeable poly(etherimide) ester elastomer films
07/05/1989EP0322725A1 Bismaleimide resins
07/05/1989CN1033636A Polyimide gas separation membranes
07/04/1989US4845185 Soluble copolyimide from 9,9-bis (4-amino phenyl) fluorene
07/04/1989US4845183 Heat resistant polyamide and polybenzoxazole from bis-((amino-hydroxyphenyl)hexafluoroisopropyl)diphenyl ethers
07/04/1989US4845167 Condensation polyimides containing 1,1,1-triaryl-2,2,2-trifluoroethane structures
07/04/1989US4845158 Molding materials, automobiles, heat resistance
07/04/1989US4844889 For hair and skin, protection against photodegradation
07/04/1989CA1257038A1 Siloxane-containing polymers
07/04/1989CA1256900A2 Melt-fusible polyimides
07/04/1989CA1256759A1 Coated material and its use
06/1989
06/29/1989DE3842093A1 Semipermeable membran aus polybenzoxazol zur trennung von gasen Semipermeable membrane for separating gases from polybenzoxazole
06/28/1989EP0321638A2 Polyimide gas separation membranes
06/28/1989EP0205577B1 Sulfonated polyimides and polyamic acids and method for their preparation
06/27/1989US4843107 Process for the preparation of polyamines and their use for the preparation of polyurethanes
06/27/1989US4842849 Composition intended for the treatment of keratin fibres, based on a cationic polymer and an anionic polymer containing vinylsulphonic groups
06/27/1989CA1256548A1 Solar cell array panel and method of manufacture
06/21/1989EP0321412A2 Di- or polycyanate compounds, substituted bicyclo[2.2.1]5 heptene-dicarbon imides, blends containing thermoplastics, and their use
06/21/1989EP0321398A2 Autophotocrosslinkable copolyimides and compositions of polyimides
06/21/1989EP0321155A2 Ethylenically-unsaturated ethers of alkenyl phenols as reactive diluents for bismaleimides
06/20/1989US4841094 For polycarbonates, polythiocarbonates, polythioesters; polythioamides, polyethers
06/20/1989US4841021 As redox polymers, polyelectrolytes, electrochromic materials or ion exchangers
06/20/1989US4841009 Substantially linear monomeric composition and liquid crystal polymeric compositions derived therefrom
06/20/1989US4840748 Polyalkanolamines
06/20/1989CA1256241A1 Thiazolinethione containing polymers
06/20/1989CA1256234A1 Aqueous dispersions of polyamines and poly(dihydrobenzoxazines)
06/15/1989WO1989005315A1 Resin composition for composite material
06/14/1989EP0320238A1 Imide type prepolymer compositions and processes for preparing same
06/14/1989EP0320211A2 Process for producing a tetracarboxylic acid anhydride having disiloxane linkage
06/14/1989EP0320121A2 Method for stabilizing aqueous solutions of cationic thermosetting polyamide-epichlorohydrin resins
06/14/1989CN1004490B Solidable component
06/13/1989US4839461 Also neutralization by metal or ammonium hydroxides
06/13/1989US4839446 Thermosetting bis oxazoline-polyphenol based resins for resin transfer molding which contain a monooxazine or monooxazoline diluent
06/13/1989US4839442 Aircraft composites
06/13/1989US4839440 Improved thermal properties
06/13/1989US4839398 Polyimide foams and their preparation
06/13/1989US4839232 Flexible laminate printed-circuit board and methods of making same
06/13/1989US4839217 Aromatic polyimide film
06/13/1989US4838900 Permselectivity
06/13/1989CA1255677A1 Polymeric alkylenephosphonic acid piperazine derivatives
06/13/1989CA1255659A1 Polyaromatic cyanates
06/08/1989DE3739799A1 Fluorine-containing compounds based on 4,4'-bis[2-(4-hydroxyphenyl)hexafluoroisopropyl] diphenyl ether, their preparation and their use
06/08/1989DE3739798A1 Partially fluorinated diphenyl ethers, their preparation and their use
06/07/1989EP0319156A1 Polypyridiniums
06/07/1989EP0318868A1 Maleimide-based thermosettable resin compositions
06/06/1989US4837302 Strength and heat resistance
06/06/1989US4837300 Copolyimide with a combination of flexibilizing groups
06/06/1989US4837299 Process for making polyimides
06/06/1989US4837005 Partially hydrolyzed, poly(N-acyl)alkylenimines in personal care
06/06/1989CA1255430A1 Polyimide adhesives, coats and prepreg
06/06/1989CA1255423A1 Polyimide coating compositions
06/06/1989CA1255422A1 Polyimide coating compositions
06/01/1989WO1989004850A1 Bismaleinimides and polyimides prepared therefrom
06/01/1989WO1989004823A1 Halogenated phenyl cyanates
05/1989
05/31/1989EP0318162A2 Novel bismaleimide derivatives
05/31/1989EP0317944A2 Polymers prepared from 4,4'-bis-(2-(amino (halo) phenoxyphenyl) hexafluoroisopropyl) diphenyl ether
05/31/1989EP0317943A2 Polymers prepared from 4,4'-bis-[2-(3,4-(dicarboxyphenyl) hexafluoroisopropyl] diphenyl ether dianhydride
05/31/1989EP0317942A2 Heat resistant polyamides and polybenzoxazoles from bis-[(aminohydroxyphenyl hexafluoro-isopropyl] diphenyl ethers