| 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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| 06/12/1991 | EP0431423A2 Basic polycondensation products as well as their use as dye additives |
| 06/12/1991 | EP0431079A1 Flame resistant article made of phenolic triazine and related method |
| 06/12/1991 | CA2071201A1 Partially fluorinated compounds and polymers |
| 06/12/1991 | CA2031900A1 Polyaniline dispersion and method for making same |
| 06/11/1991 | US5023308 Aminotriazine polymers and method of preparing same |
| 06/08/1991 | WO1991009174A1 Wet strength resin composition and method of making same |
| 06/08/1991 | CA2070837A1 Wet strength resin composition and method of making same |
| 06/05/1991 | EP0430863A2 Complexe builders bonded to sterwise prepared polymers, their complexes and conjugates, process for their preparation and pharmaceutical agents containing the same |
| 06/05/1991 | EP0430430A2 Polyimide |
| 06/05/1991 | EP0430333A1 Laminate for electroless metallization, a printed circuit provided with same, and a process for the manufacture of such a laminate |
| 06/05/1991 | EP0429985A2 Process for producing flexible printed circuit board |
| 06/05/1991 | EP0429827A2 Lactam melts with higher viscosity and their use |
| 06/05/1991 | EP0429775A2 Carboxylic acid anhydride complexes and their preparation and use |
| 06/05/1991 | EP0429607A1 Electro-optical liquid crystal system |
| 06/04/1991 | US5021585 Engineering thermoplastics; good optics, heat and oxidation resistance |
| 06/04/1991 | US5021583 Two step process; reacting with acid chlorides and cyanide |
| 06/04/1991 | US5021580 Monomer containing aromatic group, two amine, two hydroxy, and a methyl groups |
| 06/04/1991 | US5021540 Polyimides from diaminobenzotrifluorides |
| 06/04/1991 | US5021519 Prepregs; bismaleimides, unsaturated reactive diluent; three-dimensional matrix |
| 06/04/1991 | US5021518 Ethynyl terminated imidothioethers and resins therefrom |
| 06/04/1991 | US5021517 Dissolving heterocyclic polymer and a thermoplastic resin in a common solvent, extrusion and compression molding |
| 06/04/1991 | US5021484 Fire retardant curable 1-oxa-3-aza tetraline (also termed "3,4-dihydro-1,3-benzoxazine") derived resin composition |
| 06/04/1991 | US5021129 Multilayer structures of different electroactive materials and methods of fabrication thereof |
| 06/04/1991 | US5020883 Good display qualities such as high contrast |
| 05/30/1991 | WO1991007455A1 Sulfoalkylation of hydroxyethylated polybenzimidazole polymers |
| 05/29/1991 | EP0429083A1 Preparation of 4,6-dinitro-2-halo-1,3-benzenediol |
| 05/29/1991 | DE3938918A1 Synergistic mixt. for treating textiles before dyeing, foularding, etc - comprises poly epihalohydrin and poly:alkylene-poly:amine amine, derived from an allyl] amine, and textile auxiliary |
| 05/28/1991 | US5019642 Novel diamine compounds, production of the same and polyamideimide resins produced therefrom |
| 05/23/1991 | CA2030571A1 Oxyalkylene/n-acylalkylenimine block copolymers useful as surfactants |
| 05/23/1991 | CA2030499A1 Laminate for electroless metallization, a printed circuit provided with same, and a process for the manufacture of such a laminate |
| 05/22/1991 | EP0428095A2 Solvent resistant polyimidesiloxane |
| 05/22/1991 | EP0427815A1 Hemicyanine main-chain polymers |
| 05/22/1991 | EP0427785A1 High service temperature conductive polymers and method of producing same |
| 05/21/1991 | US5017681 High performance thermally stable polybenzimidazole film |
| 05/21/1991 | US5017677 Polyquinoline copolymers |
| 05/21/1991 | US5017675 Use of polyamidoamines as curing agents for epoxy resins and curable mixtures containing these substances wherein the acid component has oxyalkylene(repeating)units |
| 05/21/1991 | US5017644 N-hydroxyalkyl polyethyleneimine |
| 05/21/1991 | US5017642 Polyamide and epichlorohydrin |
| 05/21/1991 | CA1284396C Storage-stable heat-curable mixtures and the use thereof |
| 05/18/1991 | CA2030200A1 Process for producing flexible printed circuit board |
| 05/16/1991 | WO1991006887A1 Sulfonated polyaniline salt compositions, processes and uses |
| 05/16/1991 | DE3937592A1 Monomeric, oligomeric and polymeric radical anion salt prodn. - by reducing naphthalene tetra:carboxylic di:anhydride or bis:imide cpd. with dithionite |
| 05/15/1991 | EP0427452A2 Process for separating a charge containing dewaxing solvent and dewaxed oil |
| 05/15/1991 | EP0427100A2 Silicone copolymers having tetraorganodisiloxy groups and intermediates thereof |
| 05/14/1991 | US5015699 Polyimines from hydrazine or diamines and diketones and reaction with iron ions |
| 05/14/1991 | US5015270 Phenylindane-containing polyimide gas separation membranes |
| 05/14/1991 | CA2028646A1 Solvent resistant polyimidesiloxane |
| 05/10/1991 | CA2025378A1 Silicone copolymers having tetraorganosiloxy groups and intermediates thereof |
| 05/09/1991 | CA2029030A1 Process for treating a charge containing dewaxing solvent and dewaxed oil |
| 05/07/1991 | US5013840 Polyamic acid or polyimide |
| 05/07/1991 | US5013817 Process for preparing a polyimide and a composite material containing the same |
| 05/07/1991 | US5013804 Curable mixtures containing a bismaleimide and a propenyl compound |
| 05/02/1991 | WO1991005979A1 Polyaniline compositions, process for their preparation and uses thereof |
| 05/02/1991 | EP0425438A2 Novel oligomers |
| 05/02/1991 | EP0425265A1 Aromatic diamine compounds, bismaleimide compounds, thermosetting resins forming compositions therefrom, resins therefrom, and methods for their preparation |
| 05/02/1991 | EP0424956A1 Process for preparing polyimide composites |
| 05/02/1991 | EP0424940A2 Positive photosensitive polyimide resin composition |
| 05/02/1991 | EP0424816A2 Bismaleimide resin compositions |
| 05/02/1991 | EP0424805A2 Copolyimide ODPA/BPDA/4,4'-ODA/p-PDA |
| 05/02/1991 | DE4034152A1 Blocked poly-isocyanurate adhesion promoter for PVC plastisols - derived from aliphatic, alicyclic, araliphatic or hydrated aromatic di-isocyanate and and styrene-substd. phenol |
| 05/01/1991 | CN1051037A Imide prepolymers and cured products thereof |
| 04/30/1991 | US5011999 Process of preparing non-cyclic polyalkylenepolyamines employing group VB metal catalysts |
| 04/30/1991 | US5011905 Having mono- and difunctional crosslinking end caps; tough, heat and solvent resistant prepregs |
| 04/30/1991 | US5011755 Relief Images |
| 04/30/1991 | US5011753 Polyamides Containing Hexafluoroisopropylidene Groups Which May Be Cured To Form Polybenzoxazoles |
| 04/27/1991 | CA2028429A1 Process for preparing polyimide composites |
| 04/27/1991 | CA2028389A1 Oligomers |
| 04/27/1991 | CA2027957A1 Copolyimide odpa/bpda/4,4'-oda/p-phenylenediamine |
| 04/24/1991 | EP0424286A1 Imide group-containing polymers from sterically hindered diamines |
| 04/24/1991 | EP0424224A1 Nadimide resin based expanded materials |
| 04/24/1991 | EP0424135A1 Imide prepolymers and cured products thereof |
| 04/24/1991 | EP0424041A2 Membranes obtained from copolymers of polyimides and aliphatic polyesters. |
| 04/24/1991 | EP0423268A1 Branched, dipolar-oriented polymer materials |
| 04/24/1991 | EP0408672A4 Tough, high performance, addition-type thermoplastic polymers |
| 04/24/1991 | EP0392007A4 Process for preparing linearly-extended polyalkylenepolyamines |
| 04/24/1991 | CA2024189A1 Bismaleimide resin compositions |
| 04/23/1991 | US5010207 Process for the production of trimellitic anhydride with superior color properties |
| 04/23/1991 | US5010197 Polyphenylquinoxalines via aromatic nucleophilic displacement |
| 04/23/1991 | US5009934 Process for preparing poly-(imidesiloxanes) |
| 04/23/1991 | US5009887 Deodorizing acidic and alkaline odors in enclosures |
| 04/23/1991 | US5009679 Membranes formed from rigid aromatic polyimide polymers |
| 04/19/1991 | CA2027811A1 Imide prepolymers and cured products thereof |
| 04/18/1991 | WO1991005002A1 Polyimide resin laminates |
| 04/18/1991 | CA2027888A1 Expanded materials made from nadimide resin |
| 04/17/1991 | EP0422885A1 Phenylindane-containing polyimide gas separation membranes |
| 04/17/1991 | EP0422506A1 Membranes formed from unsaturated polyimides |
| 04/17/1991 | EP0422379A2 Thermosetting resin composition, resin sheet, prepreg and laminated sheet |
| 04/17/1991 | EP0422231A1 High-molecular polytriazine |
| 04/17/1991 | CN1012368B Preparation and film formation of soluble polyaniline and its derivative |
| 04/16/1991 | US5008456 Diamino compounds, dinitro compounds, diol compounds and a process for preparing the diamino compounds |
| 04/16/1991 | US5008367 Hydrotropic; increase solubility by complexing |
| 04/16/1991 | US5008361 Low water absorption, good adhesion electronics |
| 04/16/1991 | US5008347 Compatibility blends for polycarbonates, polyamides |
| 04/16/1991 | US5008346 Graft copolymers of poly(p-phenylene benzbisimidazole) |
| 04/16/1991 | US5008041 Preparation of conductive polyaniline having controlled molecular weight |
| 04/16/1991 | CA1283127C Reaction products of bisglycidyl thioethers |
| 04/13/1991 | WO1991005817A1 Process for the preparation of surface modified solid substrates |
| 04/12/1991 | CA2026969A1 Membranes formed from unsaturated polyimides |
| 04/11/1991 | DE3933120A1 New poly:pyridinium annulene polymers prepn. - from 1,1-bis-3-di:alkyl-amino-N,N-di:methyl-propene-iminium-2-yl-4 4-bi:pyridinium salt and opt. substd. O-phenylene-di:amine |
| 04/11/1991 | CA2027006A1 Phenylindane-containing polyimide gas separation membranes |