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)
05/1994
05/20/1994CA2083327A1 Highly dense themoplastic molding compositions having improved impact strength
05/18/1994EP0597301A1 Thermoplastic polyesterimide from tirmellitic acid, propanediphenol and aromatic diamine, with enhranced mechanical properties, its process of preparation and its use
05/18/1994EP0596973A1 Device for sensing volatile materials.
05/18/1994CN1024543C Process for bicyclohexyl-3,4,3,4-tetra-formic acid
05/17/1994US5312897 N-phenylhydroxylamine polymer, method of preparation
05/17/1994US5312896 Metal ion porphyrin-containing poly(imide)
05/17/1994US5312895 Benzobisazole copolymer system soluble in aprotic solvents
05/17/1994US5312887 Polycyanate polymers for printed circuit boards
05/17/1994US5312876 Water soluble rigid-rod polymer
05/17/1994US5312686 Processable, high molecular weight polyaniline and fibers made therefrom
05/11/1994WO1994010327A1 Enzymatic synthesis of polyaniline
05/11/1994WO1994010213A1 Method for preparing color-clear composite coatings having resistance to acid etching
05/11/1994WO1994010212A1 Aqueous aminoplast-curable film-forming compositions providing films having resistance to acid etching
05/11/1994WO1994010211A1 Aminoplast-curable film-forming compositions providing films having resistance to acid etching
05/11/1994WO1994010096A1 Copolymers of polyamino acids as scale inhibition agents
05/11/1994WO1994009768A1 Antibacterial polymeric quaternary ammonium compounds
05/11/1994EP0596631A2 Novel polymeric antimicrobials and their use in pharmaceutical compositions
05/11/1994EP0596454A1 Method for immobilizing linear polymers on a chemical retardant support material
05/11/1994EP0596447A2 Polyimide and polyamide-imide gas separation membranes
05/11/1994EP0596150A1 Solutions of polyimide precursors
05/11/1994EP0596149A1 Solutions of polyimide precursors
05/11/1994CN1086528A Reduced yellowing electrodepositable coating composition
05/11/1994CA2146358A1 Copolymers of polyamino acids as scale inhibition agents
05/11/1994CA2145849A1 Aqueous aminoplast-curable film-forming compositions providing films having resistance to acid etching
05/10/1994US5310943 Monomers for star polyesterimides and curing agents
05/10/1994US5310933 Benzonitrile
05/10/1994US5310863 Polyimide materials with improved physico-chemical properties
05/10/1994US5310856 4-carboxy-N-(hydroxyphenyl)phthalimide monomer; varnishes
05/10/1994US5310830 Epoxy resin, maleimide and OH- and epoxy-containing compound
05/10/1994US5310829 Quaternary poly(iso) quinolinediyl and preparation thereof
05/10/1994US5310824 Water repellent aramids
05/10/1994US5310781 Carboxy-substituted
05/10/1994US5310625 Improved wall angles
05/10/1994US5310415 Polyimide and polyamide-imide gas separation membranes
05/05/1994DE4227836A1 Verfahren zur Metallisierung von Nichtleitern und die Verwendung einer sauren Lösung A process for the metallisation of non-conductors and the use of an acidic solution
05/04/1994EP0595230A1 Unsaturated imide compounds containing alicyclic structure
05/04/1994EP0594947A2 Low dielectric constant fluorinated polymers and methods of fabrication thereof
05/04/1994EP0594591A1 Gas separation membranes comprising miscible blends of polyimide polymers
05/04/1994CN1024420C Polyimide resin compositions
05/03/1994US5308569 Process for the preparation of aromatic polyimide film
04/1994
04/29/1994CA2109347A1 Unsaturated imide compounds containing alicyclic structure, process for producing the same and intermediate therefor
04/28/1994WO1994009076A1 Reduced yellowing electrodepositable coating composition
04/27/1994EP0594207A2 Clutch facing
04/27/1994EP0594145A2 Block copolymers containing blocks of polybenzazole polymer and blocks of polybenzoxazinone polymer or polyoxadiazole polymer
04/27/1994EP0593648A1 Conductive polymer film formation using initiator pretreatment
04/27/1994CN1085890A Dicyclohexyl-3,4,3',4'-tetracarboxylic acid or dianhydride thereof and polyamide-acid and polyimide obtained therefrom
04/26/1994US5306784 Mixing monomer precursors of thermosetting and thermoplastic polyimides including acetylene end group crosslinking site, reacting below 300 degrees, heating
04/26/1994US5306741 Method of laminating polyimide to thin sheet metal
04/26/1994US5306443 Dissolving monomer with metal containing oxidizing agent in sufficient solvent to prevent polymerization; removal of solvent
04/26/1994US5306429 Copolymers of polyamino acids as scale inhibition agents
04/26/1994CA1328760C Photoinitiator mixtures containing a titanocene and a 3-ketocoumarin
04/20/1994EP0593200A1 Method for preparing polyimides
04/20/1994EP0593187A1 Production of polysuccinimide by thermal polymerization of maleamic acid
04/20/1994EP0485405B1 Biscitraconimide copolymers with olefinically unsaturated materials
04/20/1994CN1085574A Production of polysuccinimide by thermal polymerization of maleamic acid
04/19/1994US5304682 One step sulfonation, nitration of 1,1'-thiobis/3-trifluoro-methyl/benzene
04/19/1994US5304627 Polyimides containing pendent siloxane groups
04/19/1994US5304626 Polyimide copolymers containing 3,3',4,4'-tetracarboxybiphenyl dianhydride (BPDA) moieties
04/19/1994US5304625 Phosphazene-containing amine as curing agent for phthalonitrile-based polymer
04/19/1994US5304613 Polyaniline derivative containing at least a 2-butenylene structure
04/14/1994WO1994007594A2 Hollow fiber membrane incorporating a polyimide and process for preparing same
04/14/1994CA2107609A1 Production of polysuccinimide by thermal polymerization of maleamic acid
04/13/1994EP0592052A1 Phosporus containing catalysts and process for the production of linear polyamines
04/13/1994EP0540580B1 Polymeric drug delivery system
04/12/1994US5302692 High glass transition temperature, low dielectric properties
04/12/1994US5302684 Monomers for curable polysiloxanes which also contain imide groups
04/12/1994US5302652 Dispersing pigment in solvent; mixing with polyamic acid precursor; shaping; thermal or chemical conversion
04/12/1994US5302467 Halogenated polyimide composition having improved adhesion characteristic and articles obtained therefrom
04/12/1994CA1328528C Thermosetting resin composition, printed circuit board using the resin composition and process for producing printed circuit board
04/07/1994DE4233532A1 New thermostable soluble or fusible polyimide and polyamide-imide - with esterified units derived from benz-hydrol, suitable for making fibre or film
04/06/1994EP0589917A1 Process for preparing epihalohydrin-based resins having a reduced halogen content
04/06/1994EP0589891A1 High compressive strength liquid crystalline polymers and fibers and films thereof
04/06/1994CN1084864A Water compatible amine terminated resin useful for curing epoxy resins
04/05/1994US5300690 Addition-condensation copolymer modified by hydroxylamine; antioxidants, chelating agents
04/05/1994US5300627 Heat resistant silicon modified polyimide
04/05/1994US5300620 Heat-resistant adhesive and method of adhesion by using adhesive
04/05/1994US5300619 Polyimide resin film and method of making said film
04/05/1994US5300603 Dialkylidenecyclobutane/acrylate/bis-maleimide composition
04/05/1994US5300592 Prepregs; allyl-etherified novolaks cured with bismaleimides
04/05/1994US5300571 Hardenable composition based on a Michael addition product, process for its preparation and its use
04/05/1994US5300287 Polymeric antimicrobials and their use in pharmaceutical compositions
04/05/1994US5300208 Fabrication of printed circuit boards using conducting polymer
04/05/1994US5300176 Impregnating fibrous substrate with polyimide precurser in solvent with basic tertiary or sterically hindered amine, heating, consolidating, curing
03/1994
03/31/1994WO1994006846A1 Melt-processable block copolyesterimide and method for manufacturing it
03/31/1994WO1994006845A1 Production of polysuccinimide and polyaspartic acid from maleic anhydride and ammonia
03/31/1994WO1994006844A1 Fast-curing adhesive of adjustable viscosity
03/31/1994WO1994006843A1 Production of polysuccinimide and polyaspartic acid
03/31/1994DE4332248A1 Polyamide-imide block copolymers - is obtd. by stepwise reaction of di-acid(s), di-amine(s) and tetra:carboxylic acid di-anhydride(s) in sulphone solvent, esp. di-phenyl-sulphone
03/31/1994DE4232523A1 Thermoplastic polyimide-sulphone(s) - from mixts. of oxy-di:phthalic anhydride, di:amino:di:aryl-sulphone(s), other di:anhydride(s) and di:amine(s), and mono:anhydride(s) or -amine(s)
03/31/1994DE4232496A1 New polyamideimide(s) - used for prodn. of gas-sepn. membranes and membranes contg. dispersed, catalytically active particles of metals, oxide(s), etc
03/31/1994CA2144989A1 Melt-processable block copolyesterimide and method for manufacturing it
03/31/1994CA2144944A1 Production of polysuccinimide and polyaspartic acid
03/30/1994EP0588962A1 Light-absorbing polymers
03/30/1994EP0588906A1 Processible forms of electrically conductive polyaniline and conductive products formed therefrom
03/29/1994US5298601 High temperature 3f-polyimides
03/29/1994US5298600 1-trifluoromethane-3-benzene-2,2'-dibiphenyltracarboxylic acid and an aliphatic or aromatic diamine monomers
03/29/1994US5298590 Liquid crystal alignment treating agent
03/29/1994US5298359 Photosensitive heat-resistant polymer having hydroxyphenyl group for forming a patterned image
03/29/1994US5298331 Metal clad laminates for printed circuits and tape automated bonding
03/29/1994CA1328144C Phenolic cyanate-phenolic triazine copolymers