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