Patents
Sitemap › C08 - Organic macromolecular compounds; Their preparation or chemical working-up; Compositions based thereon › C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds › 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
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)
12/1991
12/04/1991EP0459472A1 Polyimide composite material and process for producing the same
12/03/1991US5070182 Cyclobutanetetracarboxylic acid monomer
12/03/1991US5070181 Good thermal dimensional stability
12/03/1991US5070163 Matrix resin for production of composites
12/03/1991US5070154 Composition of maleimide and aromatic-double bond epoxy resin
12/03/1991US5069848 Polymer of pyromellitic acid and bis(aminophenoxy)biphenyl or bis(aminophenoxyphenyl) hexafluoropropane
12/03/1991US5069820 Thermally stable forms of electrically conductive polyaniline
12/03/1991CA1292833C Rapid curing poly (ether-amide) process
11/1991
11/28/1991WO1991018040A1 Reactive polyimide
11/28/1991WO1991018035A1 Cyanate ester resin composition containing an epoxy/aromatic adduct
11/28/1991WO1991017880A1 Resin film and method of making said film
11/28/1991WO1991011476A3 Thermally-reversible isocyanate polymers
11/27/1991EP0458744A2 Curable bismaleimid compositions
11/27/1991EP0458739A2 Curable resins leading to flame resistant and highly heat resistant polymers and process for their preparation
11/27/1991EP0458240A1 Curable compositions
11/27/1991EP0458201A2 9,9-Bis(perfluoroalkyl)xanthene 9-aryl-9-perfluoroalkylxanthene, monomers and polymers derived therefrom
11/26/1991US5068384 Phosphate salts of AB-polybenzoxazole monomer
11/26/1991US5068352 Bisimidodiphenol derivatives
11/26/1991US5068324 Novel amphoteric polymers
11/26/1991US5068309 Composites, adhesives and electrical insulation
11/26/1991US5068308 Continuous preparation of aromatic polycondensates
11/26/1991US5068307 Polyamideimides containing 3,4'-diamino-diphenylether as diamine component and process for preparing the same
11/26/1991US5068292 In-situ composites
11/26/1991US5068131 Applying a fluorinated polyimide, rotation, centrifuging and drying
11/26/1991US5067970 Asymmetric polyimide membranes
11/24/1991CA2042894A1 9,9-bis(perfluoroalkyl)xanthene, 9-aryl-9-perfluoroalkylxanthene, monomers and polymers derived therefrom
11/23/1991CA2042863A1 Hardenable compositions
11/21/1991EP0457732A1 Curable compositions
11/21/1991EP0457694A1 Process for the preparation of semi-ordered polyamide-imides
11/21/1991EP0457485A2 Nonlinear optical devices and methods for making them
11/21/1991EP0457419A2 Method of producing an aromatic polythiazole
11/21/1991EP0457386A2 Process for the preparation of a secondary amine and catalysts therefor
11/21/1991EP0456972A1 Surface modification of a polyimide
11/21/1991EP0456717A1 Polyhydric phenols as chain extenders for certain bismaleimide resins
11/21/1991DE4015754A1 Insol polymers contg. poly perylene units - obtd. by oxidn. of corresp. bis-naphthalene di:oic acid imidazolide(s), for pigment, sensor, electrode, etc.
11/19/1991US5066811 Di(hydroxyphenyl)imidazole monomers used to make polyethers
11/19/1991US5066773 Reacting benzimidazole with aliphatic diacid chloride; then cyanide
11/19/1991US5066771 Method for producing an imide oligomer
11/19/1991US5066770 Process and apparatus for manufacturing polymers
11/19/1991US5066769 Terephthalic acid, 2,7-fluorenedicarboxylic acid, and diaminodimercaptobenzene dihydrochloride monomers; compressive strength
11/19/1991US5066760 Mixed polyimides and process for preparing them
11/19/1991US5066541 Crosslinkable Oligomers That Include Oxazole, Thiazole, Or Imidazole Linkages Between Crosslinking End-Cap Phenylimides
11/18/1991CA2042710A1 Process for the production of semi-ordered polyamide-imides
11/15/1991CA2042185A1 Process for the preparation of a secondary amine
11/13/1991EP0456515A1 Polyimides and thermosetting resin compositions containing the same
11/13/1991EP0456512A2 Polyimidesiloxane oligomer
11/13/1991EP0456469A2 Photosensitive heat-resistant polymer having hydroxyphenyl group
11/13/1991EP0456143A2 Asymmetric polyimide mebranes
11/13/1991EP0169205B1 Method of preparing copolymers utilizing isoimides
11/12/1991US5064933 Benzophenone-type polyimides and their production
11/12/1991US5064697 Substrate with a liquid crystal polymeric thin film and method for manufacturing the same
11/06/1991EP0455571A2 Low thermal coefficients of expansion(TCE) polyimides
11/06/1991EP0455224A2 Polyaniline derivatives and their production process
11/06/1991EP0455222A2 Production process of polyaniline derivatives
11/06/1991EP0455208A2 Copolyimide film with improved properties
11/06/1991EP0455032A2 Process for forming multi-level coplanar conductor/insulator films employing photosensitive polyimide polymer compositions
11/06/1991EP0454793A1 Thermoplastic polyimide and polyketone elastomers
10/1991
10/31/1991WO1991016370A1 Crosslinkable fluorinated aromatic ether compositions
10/31/1991CA2041545A1 Copolyimide film with improved properties
10/30/1991EP0454590A2 Polyimide optical waveguide
10/30/1991EP0454226A1 Process for the preparation of block copolymers of tetrahydrofuran and azetidine, and the block copolymers obtained
10/30/1991EP0454158A1 Polyamic acid composite, polyimide composite and processes for producing the same
10/30/1991EP0454126A1 Polyaminoacids as builders for detergent formulations
10/30/1991EP0453958A2 Flat shaped article and process for its manufacture
10/30/1991EP0453700A2 Process for the preparation of polyimide prepolymers
10/30/1991EP0453492A1 Varnish binder.
10/29/1991US5061809 9,9-bis-(3,4-dicarboxyphenyl)fluorene dianhydrides
10/29/1991US5061784 Polymers prepared from 4,4'-bis(3,4-dicarboxyphenyl) hexafluoroisopropyl) diphenyl dianhydride
10/29/1991US5061783 Processing for maximizing the level of crystallinity in linear aromatic polyimides
10/29/1991US5061781 Polyimides from diaminobenzotrifluorides
10/29/1991US5061780 Poly(ether-bis-imide-spiro dilactam) polymer
10/29/1991US5061581 High ionic conductivity
10/29/1991US5061509 Polyimide containing decomposable bonds
10/29/1991CA1291589C Metal carboxylate/alkylphenol curing catalyst for polycyanate esters of polyhydric phenols
10/23/1991EP0453237A2 Photosensitive, heat-resistant resin composition and pattern formation process
10/23/1991EP0452986A2 Photosensitive amphiphilic high molecular weight polymers and process for their production
10/23/1991EP0452725A2 Fluorine containing diaminobenzene derivatives and its use
10/23/1991EP0452604A2 Copolyester
10/22/1991US5059689 Tetramethylpiperidino-s-triazines
10/22/1991US5059677 Polyimide resin and insulating film for electric and electronic devices
10/22/1991US5059665 with an aromatic alkeenyl compound and a lewis acid to prolon g pot life
10/22/1991US5059273 Process for preparing polyimide composites
10/22/1991US5059220 Composite polymeric membranes for the separation of mixtures of gases and the method of preparation the same
10/22/1991CA1290925C Apparatus for removing sulfur from organic polysulfides
10/21/1991WO1991016123A1 Porous polybenzoxazole and polybenzothiazole membranes
10/21/1991WO1991016121A1 Polybenzazole polymers containing indan moieties
10/21/1991CA2080122A1 Polybenzazole polymers containing indan moieties
10/21/1991CA2079909A1 Porous polybenzoxazole and polybenzothiazole membranes
10/17/1991CA2024689A1 Copolyester
10/16/1991EP0452078A1 Photoconductive device comprising an organic polyimide film
10/16/1991EP0452004A2 Polyalkoxyamines, their preparation, dispersant additives prepared therefrom and use of the additives in lubricating oils and fuels
10/16/1991EP0451405A1 Thermosetting resin composition
10/16/1991EP0451404A1 Thermosetting resin forming compositions and process for preparing the same
10/15/1991US5057597 Process for the manufacture of anhydro polyamino acids and polyamino acids
10/15/1991US5057399 Method for making polyimide microlithographic compositions soluble in alkaline media
10/09/1991EP0450979A2 Tri-component polyimide composition and preparation thereof
10/09/1991EP0450926A2 Fluorine-containing polyimides and precursors thereof
10/09/1991EP0450724A1 Process for preparing block copolymers of tetrahydrofuran and oxazoline and hydrolysis products of these
10/09/1991EP0450549A1 Liquid crystal device and display apparatus
10/09/1991EP0450505A2 Polyetherimide foam procursors and foams having improved physical properties and methods of making them
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