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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08/08/1991 | WO1991013472A1 Solid polymer electrolytes |
08/08/1991 | WO1991011480A1 Preparation of conductive polyaniline having controlled molecular weight |
08/08/1991 | WO1991011476A2 Thermally-reversible isocyanate polymers |
08/07/1991 | EP0439916A1 Polyimide resins prepared by addition reaction |
08/07/1991 | EP0439915A1 Polyimide resins prepared by addition reaction |
08/07/1991 | EP0439846A1 Biodegradable polymers, a process for their preparation, and the use thereof for depot formulations with controlled delivery of active ingredient |
08/07/1991 | EP0439699A2 Solutions of polymeric guanidine salts with increased biocidic activity, process for their preparation and use |
08/07/1991 | EP0439698A2 Process for the preparation of polymeric guanidine salts active as biocides |
08/07/1991 | EP0439578A1 Process for the production of trimellitic anhydride with improved color. |
08/06/1991 | US5037949 Polymers prepared from 4,4'-bis[2-(amino (halo) phenoxyphenyl) hexafluoroisopropyl]diphenyl ether |
08/06/1991 | US5037901 Optical filters for skin and hair; sunscreen agents; spreadabilitiy; nonsticky |
08/06/1991 | US5037720 Hydroxylated aromatic polyamide polymer containing bound naphthoquinone diazide photosensitizer, method of making and use |
08/06/1991 | US5037689 Toughened thermosetting structural materials |
08/06/1991 | US5037673 Applying uniform layer of a 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane/2,2-bis 4-(aminophenoxy)phenyl! hexafluoro-propane polyamic acid, drying, curing to polyimide |
08/06/1991 | CA1287439C Mixtures containing di- or polycyanate compounds and substituted bicyclo¬2.2.1| hept-5-ene-2,3- dicarboxylic acid imides and their use |
08/01/1991 | DE4002736A1 Poly-amino-di:carboxylic acid co-anhydro-amino-di:carboxylic derivs. - bio:degradable polymeric peptide(s) for controlled release of pharmaceuticals |
08/01/1991 | DE4002403A1 Prodn. of biocidal polymeric guanidine salts - comprises reaction of di:amine or poly:amine with cyanogen chloride and polymerisation in absence of solvent or in presence of water |
08/01/1991 | CA2035279A1 Biologically degradable polymers, process for their preparation and use thereof for depot preparations having controlled delivery of active compound |
07/31/1991 | EP0439362A1 Diamino compounds and precursors therefor |
07/31/1991 | EP0438751A2 Solutions of polyimidesiloxanes in butyrolactone |
07/31/1991 | EP0438557A1 Non-linear optically active polyimides |
07/30/1991 | US5036146 Polyethersulfone blocks, molding materials, solvent and stress cracking resistance |
07/30/1991 | US5036145 Alkoxysilane and alkoxysilane terminated polyamic or polyimide lacquer composition |
07/30/1991 | US5036111 Foaming by release of cyclopentadiene |
07/30/1991 | US5035928 Liquid crystal display device |
07/30/1991 | US5035802 Membrane filter material having excellent organic solvent resistance, method for formation of membrane filter and process for preparation of bismaleimide polymer to be used for membrane filter |
07/30/1991 | CA1287198C Elastomers |
07/25/1991 | WO1991009025A3 Partially fluorinated compounds and polymers |
07/25/1991 | DE4001239A1 Polycondensates with macrocyclic gps. in the main chain - by polycondensation of di:hydroxy cpds. with di:chloro-phthalocyanine(s) contg. central silicon atom. |
07/24/1991 | EP0438382A1 Disubstituted aromatic dianhydrides and polyimides prepared therefrom |
07/24/1991 | EP0438378A1 Substituted diallylphenol derivatives as reactive diluents for bismaleimides |
07/24/1991 | EP0437821A2 Polyimide foam products and methods |
07/24/1991 | EP0437732A1 Method for preparing polyamic acids and polyimides |
07/24/1991 | EP0437611A1 Separative membrane made of aromatic polyimide |
07/23/1991 | US5034540 Liquid crystalline polyesteretherimides |
07/23/1991 | US5034504 Spirodilactam polyamide polymer |
07/23/1991 | US5034503 Heat resistant polymers for integrated circuits |
07/23/1991 | US5034489 Crosslinkable silicone polymers for molding materials, waterprofing agents and textiles |
07/23/1991 | US5034026 Polybenzazole polymers containing indan moieties |
07/23/1991 | CA1286831C Photosensitizers and polymerizable compositions |
07/23/1991 | CA1286692C Low viscosity noncrystalline dicyanate esters and blends with prepolymers of dicyanate esters |
07/20/1991 | CA2034384A1 Disubstituted aromatic dianhydrides and polyimides prepared therefrom |
07/19/1991 | WO1991010699A1 Resin for protecting semiconductors |
07/19/1991 | CA2050919A1 Resin for protecting semiconductors |
07/19/1991 | CA2034272A1 Substituted diallylphenol derivatives as reactive diluents for bismaleimides |
07/18/1991 | DE4001158A1 Macrocyclic polymer contg. phthalocyanine or porphyrin gps. - with high heat and dimensional stability, hardness and heat conductivity |
07/17/1991 | EP0436929A2 Crystalline polyimidesiloxanes |
07/17/1991 | EP0436558A1 Composition based on a michael addition product, methods for preparing it and its use |
07/16/1991 | US5032670 Amorphous or crystalline |
07/16/1991 | US5032668 Thermosetting polyimide prepolymers |
07/16/1991 | US5032667 Amide and/or imide containing polymers and monomers for the preparation thereof |
07/16/1991 | US5032451 Toughness |
07/16/1991 | US5032279 Separation of fluids using polyimidesiloxane membrane |
07/16/1991 | CA1286305C Curing component for synthetic resins which contain groups capable of amide formation or ester formation with carboxylic acids |
07/11/1991 | WO1991009900A1 Polyimide molding |
07/11/1991 | WO1991009898A1 Process for preparing new polymers containing carboxyl groups |
07/11/1991 | WO1991009897A2 Process for preparing crosslinked polymers |
07/10/1991 | EP0436457A2 Photosensitive polyimide compositions |
07/10/1991 | CN1052873A Quaternary ammonium polyarylamides, articles of manufacture formed therefrom, and processes for preparation thereof |
07/10/1991 | CN1013117B Process for preparating hardening products based on olefinic unsaturated compounds and compounds containing active hydrogen and the use thereof the system in double compositions paint |
07/09/1991 | US5030740 From difunctional aliphatic alcohol and an amine, tungsten oxide or tungstate catalyst |
07/09/1991 | US5030706 Copolymers containing polybenzoxazole, polybenzothiazole and polybenzimidazole moieties |
07/09/1991 | US5030704 Self polymerizable phenylquinoxalines, their preparation and use in polyphenylquinoxaline homopolymers and copolymers |
07/06/1991 | CA2031110A1 Method for treating a polyimide surface for subsequent plating thereon |
07/04/1991 | DE3943111A1 Verfahren zur herstellung vernetzter polymerer A process for preparing crosslinked polymeric |
07/04/1991 | DE3943109A1 Verfahren zur herstellung neuer carboxylgruppenhaltiger polymerer Process for the preparation of new carboxyl-containing polymeric |
07/03/1991 | EP0435828A1 Piperidine-triazine compounds for use as stabilizers for organic materials |
07/03/1991 | CA2030736A1 Crystalline polyimidesiloxanes |
07/02/1991 | US5028688 Diamines, tetracarboxylic acids and spirodilactam precursor selected from spirodilactone |
07/02/1991 | US5028681 Impact modifiers for engineering thermoplastics |
07/02/1991 | US5028641 Thermosetting resin composition |
07/02/1991 | US5028354 Conductive articles of intractable polymers method for making |
07/02/1991 | CA1285696C Polyimide laminate and process for the preparation of same |
06/29/1991 | CA2033128A1 Piperidine-triazine compounds for use as stabilizers for organic materials |
06/27/1991 | DE3942466A1 Soluble crosslinkable poly:amine(s) for finishing of paper - by reaction of isocyanate-sulphonate(s) with poly:amine(s) contg. prim. and/or sec. amino Gps. |
06/27/1991 | CA2028971A1 Solutions of polyimidesiloxanes in butyrolactone |
06/26/1991 | EP0434223A1 Oxyalkylene/n-acylalkylenimine block copolymers useful as surfactants |
06/26/1991 | EP0433506A1 Catalytic process for the preparation of linear polyethylenepolyamines using a titania-supported phosphamine catalyst |
06/25/1991 | US5026872 Aromatic ether-ketone polyamines, intermediates and products, and methods for preparing same |
06/25/1991 | US5026871 Novel oligomers useful for making cured fibre reinforced composites |
06/25/1991 | US5026823 Solution polymerization of alicyclic dianhydrides and diamines in aprotic solvent and dehydrating agent |
06/25/1991 | US5026822 High molecular weight polyimide, method of making same and articles formed therefrom |
06/25/1991 | US5026820 Process for continuous mixing of a two-liquid curing type resin |
06/25/1991 | US5026788 Photosensitive polymer having thiol group |
06/19/1991 | EP0433034A2 Method involving thermally sensitive alpha-amidoacetyl or beta-amidopropionyl linkages |
06/19/1991 | EP0432943A2 Amine terminated polyamides |
06/19/1991 | EP0432939A2 Oil soluble amino-substituted polymers containing graft polymer segments derived form aromatic nitrogen-containing monomers |
06/19/1991 | EP0432929A2 Polyaniline dispersion and method for making same |
06/19/1991 | EP0432562A1 Polyhétérocycles with rigid chain and better solubility, their process of production and use |
06/19/1991 | CN1012900B Preparation method for gas separating film of polyimide |
06/18/1991 | US5025095 For toughness and workability in curable coatings, prpregs, composites, laminates |
06/18/1991 | US5025089 Copolyimides derived from 2,2-bis (amino phenyl) hexafluoropropane |
06/18/1991 | US5025084 Polyimide-forming compositions |
06/18/1991 | US5025080 Resin composition from di(arylcyclobutenealkyl) ether of di(hydroxyphenyl) oligomer |
06/18/1991 | US5025079 Ortho-ortho aramatic bis maleimide-diamine resin |
06/13/1991 | WO1991008248A1 Quaternary ammonium polyarylamides |
06/13/1991 | DE4039030A1 Preparing crosslinkable polyester-amide contg. rings - by dissolving polyester resin in solvent and reacting in soln. with solid bis(2-oxazoline) |
06/13/1991 | CA2029462A1 Thermally sensitive linkages |
06/12/1991 | WO1991009025A2 Partially fluorinated compounds and polymers |
06/12/1991 | EP0431789A2 Preparation process of polyimide |