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)
07/1976
07/13/1976US3969566 Articles of manufacturing prepared from polymers of hydrazine or dihydrazides and tricarboxylic acid anhydrides
07/13/1976US3969325 Production of particulate BBB type polymer having an unusually high surface area
07/13/1976US3969290 N,N'-substituted 2,4,5-triketoimidazolidines
07/13/1976US3969283 Recording material
07/06/1976US3968083 Novel polyetherimides
06/1976
06/29/1976US3966904 Quaternary ammonium co-polymers for controlling the proliferation of bacteria
06/29/1976US3966729 Addition curable phenyl-quinoxaline compositions and their synthesis
06/29/1976US3966684 Retention aids for paper fillers
06/29/1976US3966683 Process for the preparation of compounds which contain hydantoin groups
06/29/1976US3966678 Maleic anhydride-polyaldimine prepolymers
06/29/1976US3966656 Aqueous organic base solution of polyhydrazides
06/29/1976US3966652 Method of making foamed copolyimides and product obtained therefrom
06/22/1976US3965184 Perfluorinated nitroxide, crosslinking
06/22/1976US3965125 Synthesis of certain bis(phthalic anhydrides)
06/22/1976US3965096 Naphthalazines
06/15/1976US3963806 Reaction product of polyalkylene imine and epoxy, halo, ethylenic substituted difunctional compounds
06/15/1976US3963703 Polymer monomers, crosslinkers or modifiers
06/08/1976US3962278 N,n'bis(phthalic anhydride) diimides
06/08/1976US3962241 Photomechanical resists
06/08/1976US3962184 Process for preparing cured resin from cyanic acid esters using imidazole catalysts
06/08/1976US3962182 Imide oxirane reactions
06/01/1976US3961042 Quaternary ammonium co-polymers for controlling the proliferation of bacteria
06/01/1976US3960937 Ashless additives for lubricating compositions
06/01/1976US3960814 Poly (perfluoroalkylene oxide) oxadiazoles and their synthesis
06/01/1976US3960812 Compositions of new imides of unsaturated dicarboxylic acids and azomethines
06/01/1976US3960783 And from phenols, cyanuric acids, thiols, or amines; molding, lamination, adhesives
05/1976
05/25/1976US3959350 Melt-fusible linear polyimide of 2,2-bis(3,4-dicarboxyphenyl)-hexafluoropropane dianhydride
05/25/1976US3959233 Process for preparing polyamide-imide from trimellitic acid, diamine and diisocyanate and polyamide imide shaped articles
05/18/1976US3957735 Fiber-forming polyhydrazides
05/18/1976US3957726 S-triazine-imide copolymers
05/18/1976US3957512 Polyamides, polyureas, polyurethanes
05/11/1976USRE28808 Polyquaternary flocculants
05/11/1976USRE28807 Polyquaternary flocculants
05/11/1976US3956320 Aromatic bis(ether phthalis anhydride) compounds
05/11/1976US3956238 Molding materials
05/11/1976US3956136 Hydrophilic semipermeable membrane
05/04/1976US3954711 Thermosetting polymers from a polyimide and ammonia
05/04/1976US3954710 Polymers prepared from imide containing dianhydrides
05/04/1976US3954680 Tertiary amine
05/04/1976US3954607 Permselective membranes of diacyl hydrazide-containing aromatic polymers having selected metals complexed therewith
04/1976
04/27/1976US3953498 Diesters and diacids of phenanthrene
04/27/1976US3953401 By spraying solution onto the surface of a precipitation medium
04/27/1976US3953330 Flocculation, quaternary ammonium polymer
04/20/1976US3952084 Polyimide and polyamide-imide precursors prepared from esters, dianhydrides, and diisocyanates
04/20/1976US3952060 Surface-active
04/20/1976US3951922 Process for preparing polyimides from derivatives of phthalic anhydride
04/20/1976US3951920 Permselective polymeric membrane prepared from polybenzimidazoles
04/20/1976US3951902 Polyimide sealant composition
04/20/1976US3951891 Preparations of reaction products of epoxides, fatty amines and fatty acids, process for their manufacture and their use
04/20/1976US3951815 Composite semipermeable membranes made from polyethylenimine
04/13/1976US3950308 Polyamides, polyimides, polyamide-imides
04/13/1976US3950279 Mixtures, containing polyimides, which can be converted to heat-resistant foamed plastics
04/13/1976US3950169 Electrophotographic element with polymeric conductive layer
04/06/1976US3949014 Binder
04/06/1976US3948861 Polyamide-imides from bis-imide and dialdoxime
04/06/1976US3948835 Silicon-modified prepolymers
04/06/1976US3948800 Dispersant compositions
03/1976
03/30/1976US3947428 Bis- or tris-n,n-ethyleneurea promoter
03/30/1976US3947402 Process for the manufacture of polyimide products
03/30/1976US3947385 Mixtures containing prepolymers, which can be converted to heat-resistant foamed plastics
03/23/1976US3946011 Polyimides
03/16/1976US3944614 2,2'-Bis(phenylethynyl-5,5'-diaminobenzidine
03/16/1976US3944583 Bis-phenoxyphthalic acid anhydrides
03/16/1976US3944553 Ladder polymers
03/16/1976US3944526 N-cyanosulfonamide resins and intermediates therefor and products thereof
03/16/1976US3944525 Crosslinked resins prepared from an N,N'-bis-imide and a schiff base
03/16/1976US3944522 Aromatic polyhydrazide fiber of high modulus and high tenacity
03/16/1976US3944517 Novel polyetherimides prepared from tolane dianhydride or dichloroethylene diphenylene dianhydride
03/09/1976US3943135 Anthelmintic
03/09/1976US3943125 Substituted tetraamino heterocyclic compounds, useful in the preparation of substituted polybenzimidazoles and poly-imidazopyrrolones
03/09/1976US3943107 Processable high temperature polymers prepared from amine terminated polymers and cyanamides of polyfunctional secondary amines
03/09/1976US3943065 Non-colloidal polyamic acid electrodeposition compositions
03/02/1976US3941808 Polyamide amine salts of a styrene-maleic anhydride copolymer
03/02/1976US3941749 Linear oxadiazole-imide copolymers
03/02/1976US3941726 Polyguanidine foams
02/1976
02/24/1976US3940322 Electropolymerization of difunctional monomers to form polyimides
02/17/1976US3939109 Polyamic-acids prepared from 3,3,4,4-benzhydrol tetracarboxylic dianhydride
02/10/1976US3937673 Dielectrics
01/1976
01/27/1976US3935269 Copolymers of N-substituted aziridines and epoxides episulfides
01/27/1976US3935155 Stable dispersion of polymer in a non-solvent liquid
01/20/1976US3933812 Antimicrobial quaternary ammonium copolymers
01/20/1976US3933758 Iminoimidazolidinedione and parabanic acid polymers containing imide groups
01/20/1976US3933749 Polythioetherimides and method of preparation
01/20/1976US3933745 Imide copolymers possessing hydroxyl groups
01/13/1976US3932564 Electroconductive resins and process of preparation
01/13/1976US3932363 Polyamines containing acid groups
01/06/1976US3931418 Process for the production of insulating coatings on electrical conductors
01/06/1976US3931319 Capped polymers
01/06/1976US3931224 Aromatic imidodicarboxylic acid diallyl esters, prepolymers thereof, cured resins thereof, and processes for producing these
01/06/1976US3931106 Generation and use of dinitrile oxides
01/06/1976US3930877 Epichlorohydrin-dimethylamine-ammonia