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)
01/1991
01/11/1991CA2020738A1 Process of preparing polyimides
01/11/1991CA2005193A1 In-situ composites
01/10/1991WO1991000082A1 Antimicrobial polymeric bisbiguanides
01/09/1991EP0407176A1 Process for producing a cured cyanate ester resin product
01/09/1991EP0407172A1 Aromatic polyimide separation membrane
01/09/1991EP0406959A2 Maleimide composition
01/09/1991EP0406623A2 Polyaspartic acid derivatives as a coating for pharmaceutical forms and foodstuffs
01/08/1991US4983717 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
01/08/1991US4983709 Aromatic compounds containing cyanate ester and propargyl ether groups
01/08/1991US4983705 Thermoplastic elastomeric polyimide linked by oligomeric thio chain
01/08/1991US4983690 Solution blending of conductive polyanilines or derivatives thereof with maleimide systems; curing
01/08/1991US4983655 Blocked polyisocyanurate compound and plastisol composition containing same
01/08/1991US4983322 Solution processible forms of electrically conductive polyaniline
01/06/1991CA2020398A1 Aromatic polyimide separation membrane
01/03/1991CA2019979A1 Antimicrobial polymeric bisbiguanides
01/02/1991EP0405128A2 Polyimide oligomers and blends and method of curing
01/02/1991CA1278643C Preparation of aromatic heterocyclic polymers
01/01/1991US4981976 Polycyanato resins
01/01/1991US4981974 Polymerizable pyrrolidonyl oxazoline monomers
01/01/1991US4981942 Polyamide-imide composition based on bisphenoxyphenyl diamines
01/01/1991US4981940 Polyimides, polysiloxanes
01/01/1991US4981934 Curable composition comprising bis-imide and bis-(alkenyl phenol)
01/01/1991US4981922 Blended etherimide oligomers
01/01/1991US4981894 Halogen-free melt processable silicon-imide wire coating compositions having low smoke values
01/01/1991US4981718 Aniline polymerization
01/01/1991US4981497 Permselective
12/1990
12/27/1990WO1990015854A1 Electro-optical liquid crystal system
12/27/1990WO1990015836A1 Self-polymerizable phenylquinoxalines
12/27/1990EP0297139B1 Flexible printed circuit board and process for its production
12/27/1990CA1278398C Nitrogenized electronic conductive polymers, their preparation processes, electrochromic display cell and electro-chemical generator using these polymers
12/25/1990US4980507 Reacting ethylene dichloride and ammonia and after 25 to 85% conversion adding at least one amine to reactants
12/25/1990US4980504 Which have high glass transition temperatures
12/25/1990US4980481 For high performance composites; aerospace; heat/oxidation resistance
12/25/1990US4980447 Polyamide-polyimide and polybenzoxazole-polyimide polymer
12/25/1990US4980444 Aromatic amide groups-containing diamines and polymers in which these diamines are incorporated
12/25/1990US4980436 Thermosetting resin composition from alkenyl aryloxy triazine compound and poly maleimide
12/25/1990US4980427 Toughened bismaleimide resin systems
12/25/1990US4980389 Polyetherimide foam precursors and foams having improved physical properties and methods of making them
12/25/1990US4980387 Lightweight flexible imide foam and method of producing same
12/25/1990US4980268 Negative photoresists of the polyimide type containing 1,2-disulfones
12/19/1990EP0402975A2 Benzocyclobutene carboxylate esters
12/19/1990EP0402889A2 Polymeric polyalkyl-1-oxadiazaspirodecanes
12/19/1990EP0402883A2 Midsole for footwear
12/19/1990EP0402632A2 Aromatic polyimide silanol compounds, precursors and polymers thereof
12/18/1990US4978790 4,4'-bis[2-(4-hydroxy-amino-phenyl)hexafluoroisopropyl]-diphenylethers and their use
12/18/1990US4978742 Polymers prepared from 2-(3-aminophenyl)-2-(4-aminophenyl) hexafluoro propane
12/18/1990US4978738 Fluorine-containing; thin films
12/18/1990US4978737 Copolyimides derived from 2,2-bis (amino phenyl) hexofluoropropane
12/18/1990US4978736 High glass transition temperature; engineering thermoplastics
12/18/1990US4978734 Heat and solvent resistant, processable; films
12/18/1990US4978733 Polyamide-polyamide-polyimide and polybenzoxazole-polyamide-polyimide polymer having at least one fluorine-containing linking group
12/18/1990US4978727 Heat, oxidation resistance; long shelf-life
12/18/1990US4978692 Polyimide foam
12/18/1990CA1277989C Self-doped polymers
12/16/1990CA2019119A1 Polymeric polyalkyl-l-oxa-diazaspirodecanes
12/15/1990CA2018958A1 Innersole for footwear
12/13/1990WO1990014883A1 Micro-capsules with a polymer wall
12/12/1990EP0402141A1 Hydroxy-resinous binder materials containing bound azo photosensitizer, method and use
12/12/1990EP0401606A1 Melt crystalline polyetherimides
12/12/1990EP0401296A1 Rigid-rod polymers
12/12/1990CA2018729A1 Benzocyclobutene carboxylate esters
12/11/1990US4977294 Antistatic agents
12/11/1990US4977271 Excellent in mechanical and thermal properties
12/11/1990US4977239 Filter media
12/11/1990US4977223 Thermoset rigid rod molecular composite system
12/11/1990US4976962 Biodegradable polypeptide and the use thereof for the gradual release of drugs
12/08/1990CA2018052A1 Hydroxy-resinous binder materials containing bound azo photosensitizer, method and use
12/08/1990CA2016008A1 Melt crystalline polyetherimides
12/06/1990DE3918146A1 Mikrokapseln mit einer polymeren kapselwand Microcapsules with a polymeric capsule wall
12/05/1990EP0401005A1 Amine-modified polyimide membranes
12/05/1990EP0400903A2 Polymers and processes for their preparation
12/05/1990EP0400812A2 Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines
12/05/1990EP0400811A1 Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines
12/05/1990EP0400749A1 Bisbenzocyclobutene/bisimide compositions
12/05/1990EP0400635A2 Liquid crystal device
12/04/1990US4975506 Bismaleimide resin from bis(maleimido phenoxy)benzene
12/04/1990US4975499 Imparting wet strength to paper
12/04/1990US4975331 Dielectric coatings
12/04/1990CA1277403C Liquid crystal device
12/01/1990CA2017831A1 Amine-modified polyimide membranes
12/01/1990CA2015423A1 Copolyimide gas separation membranes derived from substituted phenylene diamines and substituted methylene dianilines
12/01/1990CA2015422A1 Copolyimide gas separation membranes derived from substituted methylene dianilines and unsubstituted diamines
11/1990
11/30/1990CA2017697A1 Polymers and processes for their preparation
11/30/1990CA2016956A1 Bisbenzocyclobutene/bisimide compositions
11/29/1990WO1990014374A1 Polyimide oligomers and blends and method of curing
11/28/1990EP0399706A2 Method of treating fibrous materials
11/28/1990EP0399558A2 Process for forming end-capped polyamic acids polyimides
11/28/1990EP0399552A2 Liquid crystal display device
11/28/1990EP0399299A2 Electrically conductive polymeric materials and uses thereof
11/28/1990EP0399199A2 Silicone compounds containing isocyanurat groups
11/28/1990EP0159363B1 Self-curing resin composition
11/27/1990US4973707 Acetylene bis-phthalic compounds and polyimides made therefrom
11/27/1990US4973662 Endcapping agent for polyimide, polyimide varnish, and intermediate material for fiber-reinforced composite material comprising same
11/27/1990US4973661 Process for forming end capped polyamic acids polyimides
11/27/1990US4973660 Polyamide of diamino-t-butyltoluene
11/27/1990US4973651 Heat resistance, waterproof, low dielectric
11/27/1990US4973649 Novel hindered diamine/imido prepolymers
11/27/1990US4973645 Block polymers, oxydiphthalic anhydride, electronic applications
11/27/1990US4973636 Thermosetting resins, toughness, lamination, high glass transition temperature
11/27/1990US4973391 Composite polymers of polyaniline with metal phthalocyanine and polyaniline with organic sulfonic acid and nafion