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4388442 Stabilizer or dispersing agent for use in a suspension polymerization of a vinyl compound comprising a modified and partially hydrolyzed anionic polyvinyl alcohol  
A stabilizer or dispersing agent for use in a suspension polymerization of a vinyl compound is provided which comprises a modified and partially hydrolyzed polyvinyl alcohol having an average...
4361625 Plasticizer-containing films of partially acetalized polyvinyl alcohols  
A plasticizer-containing film of a partially acetalized polyvinyl alcohol resin contains as the plasticizer a mixture of an ester of an organic cyclic acid and/or a conventional acetal plasticizer...
4338405 Process for continuous controlled alcoholysis of polyvinyl acetate  
Improved process for the preparation of partially alcoholyzed polyvinyl acetate having good compositional uniformity comprises rapid premixing of the polyvinyl acetate polymer and base catalyst...
4335036 Plasticized polyvinyl butyral employing propylene oxide oligomers  
Polyvinyl butyral plasticizer with propylene oxide oligomers.
4329383 Non-thrombogenic material comprising substrate which has been reacted with heparin  
Non-thrombogenic material comprising a base polymer treated with heparin, the improvement in which the heparin is covalently bonded with the base polymer through only one acetal bond or hemiacetal...
4319012 Suspension polymerization process for making vinyl resins for use in plastisol  
This invention relates to making dense, spherical particles of vinyl plastisol resins by means of a suspension polymerization procedure. The dense, spherical particles or beads have a diameter of...
4293473 Polyvinyl alcohol - crystalline solvent system based compositions modified with ethylene polymer  
Solid adhesive compositions consisting essentially of polyvinyl alcohol or ethylene/vinyl alcohol copolymer, and at least two component crystalline solvent system (such as urea and ε-caprolactam),...
4284671 Polyester compositions for gas and moisture barrier materials  
Polymer blends of a polyester and polyvinyl alcohol, or their copolymers, may be fabricated into barrier packaging materials having very low permeabilities to oxygen, other fixed gases and moisture.
4284545 Composition and process for making precipitated nylon-polyvinyl alcohol biconstituent composition  
A composition and process are provided for making precipitated biconstituent nylon-polyvinyl alcohol shaped articles by dissolving polyvinyl alcohol and a nylon having an amide group index of less...
4272470 Cross-linked polyvinyl alcohol and method of making same  
A film-forming polyvinyl alcohol polymer is mixed with a polyaldehyde-polysaccharide cross-linking agent having at least two monosaccharide units and a plurality of aldehyde groups per molecule,...
4267280 Controlled release pesticides and method of preparation  
Pesticide polymers comprising a polymer with a macromolecular backbone and pendant groups having pesticidal groups chemically linked thereto are prepared by reacting a pesticide having a...
4258163 Partially saponified polyvinyl acetates and their application in the homo- and copolymerization of vinyl chloride  
This invention relates to novel partially saponified polyvinyl acetates with a degree of hydrolysis of 30 to 65 mole % which might be considered as vinyl alcohol-vinyl acetate block copolymers....
4243769 Compatibilization of blends and composites  
Compatibilized blends and composites of materials containing nitrile functionality with materials normally incompatible therewith are formed by mixing the components in the presence of an acid...
RE30459 Nitrite esters of polyhydroxy polymers  
A polysaccharide or polyvinyl alcohol containing a mixture of nitrite ester groups with sulfate or nitrate ester groups with the mixture of ester groups being substantially uniformly distributed...
4222926 Flame-retardant thermoplastic polyester resin compositions  
A flame-retarding thermoplastic polyester resin composition comprising (1) a polyester obtained from a terephthalic acid or an alkyl ester thereof and a glycol having 2 to 4 carbon atoms, (2) an...
4208488 Thermosetting compositions  
A thermosetting coating or adhesive composition based on (A) at least one component selected from the group consisting of oligomeric and polymeric compounds containing at least one of the...
4205146 Process for the preparation of polyvinylbutyral having improved properties  
The preparation of polyvinylbutyral is commonly effected by the acetalization of polyvinyl alcohol with n-butyraldehyde, either in an organic solvent or in water. By varying the reaction...
4201802 Process for manufacturing prefinished hardboard  
A process for manufacturing prefinished hardboard includes the use of a pre-press sealer comprising an aqueous mixture of a polyvinyl alcohol polymer in conjunction with emulsified fatty acid...
4200709 Gas-sparging of ethylene-vinyl ester interpolymers to suppress discoloration on alcoholysis thereof  
Process for the production of partially-alcoholyzed ethylene-vinyl ester interpolymers by controlled alcoholysis of the base resins in which discoloration is suppressed by gas-sparging the base...
4190716 Polymeric agent for releasing 5-aminosalicylic acid or its salts into the gastrointestinal tract  
A generic polymeric agent for releasing 5-aminosalicylic acid or its salts is disclosed which comprises a nonabsorbable pharmacologically acceptable organic polymer backbone containing aromatic...
4182804 Preparation of polymers which contain amine groups or salts thereof and/or quaternary ammonium groups and polymers obtained  
Polymers, such as ethylene-vinylacetate copolymer, polyvinyl alcohol or cellulose, containing amine groups or salts thereof or quaternary ammonium groups are disclosed. The polymers can be...
4172930 Sizes for textile fibers  
A size for textile fiber which comprises a modified polyvinyl alcohol type resin obtainable by the alkali saponification of a copolymer comprising a vinyl ester and an ethylenically unsaturated...
4155893 Preparing a hydrophilic gel by hydrolyzing a vinyl ester-acrylic or methacrylic ester copolymer  
A method for the preparation of water-insoluble gels containing at least a hydroxyl group and a carboxylate group in molecules thereof which comprises saponifying copolymers comprising a vinyl...
4153526 Laminated windshield with improved innerlayer  
Safety glass is made by laminating to a ply of glass a saturated polyvinyl acetal film incorporating a photoinitiator. The exposed surface of the film is irradiated with ultraviolet light which...
4150190 Method of coating conductors with solutions of polyvinyl acetals  
A method of coating conductors with polyvinyl formal dissolved in a solvent comprising certain monoalkyl ethers of diethylene glycol and triethylene glycol or the monophenyl ether of ethylene...
4146511 Resin compositions for peel-off coatings comprising a film-forming polymeric resin, an organo polysiloxane and a solvent  
The resin compositions for peel-off coatings comprise a certain film-forming polymeric resin, an organopolysiloxane having a polyoxyalkylene group as the side chain, and a solvent. The coating...
4140668 Water soluble or water dispersible hot-melt adhesive compositions based on polyvinyl alcohol with residual acetate groups and process for producing the same  
Adhesive compositions which comprise polyvinyl alcohol having about a 30 to about a 60 mol% residual acetate group content which are produced by dissolving polyvinyl acetate having a degree of...
4126597 Solutions of polyvinyl acetals  
Polyvinyl formal dissolved in a solvent comprising certain monoalkyl ethers of diethylene glycol and triethylene glycol or the monophenyl ether of ethylene glycol, diethylene glycol, triethylene...
4082896 Abrasion resistant coatings  
Abrasion resistant polymeric coatings in which the polymer comprise the polymerized product of at least 15% by weight of an epoxy-terminated silane have improved film forming properties without...
4070530 Catalytic amination of polymeric polyols and resulting amino substituted polymers  
Amino substituted polymeric polyols are produced through Group VIII metal catalytic amination of polymers comprising ethylenically unsaturated alcohols and copolymers of said alcohols and vinyl...
4052471 Process for chlorinating C8 to C30 linear hydrocarbons  
An improved process for chlorinating substantially linear, liquid C8 to C30 hydrocarbons by intimately mixing the hydrocarbons and water in a weight ratio of 0.09:1 to 10:1, feeding the mixture of...
4049867 Thermosetting resin composition comprising an [(2,3-epoxypropoxy)alkyl]trialkyloxysilane  
A novel thermosetting resin composition comprising at least one [(2,3-epoxypropoxy)alkyl]trialkoxysilane and at least one selected from polymers, prepolymers, copolymers and coprepolymers of...
4038253 Photocross-linkable polymers containing pendant diazoester groups  
It has been found that certain polymers containing pendant diazo ester groups are photosensitive and have utility in the preparation of both lithographic and relief printing plates, as well as for...
4036808 Conductive hydrogel containing 3-ionene  
Cationic polyelectrolytes formed by the polymerization in absence of oxygen of a monomer of the general formula: dispersed ##STR1## where x is 3 or more than 6 and Z is I, Br or Cl to form high...
4016340 Hydroxyl-containing polymers having aminimide groups attached thereto through an ether linkage  
This invention relates to novel polymers containing a plurality of hydroxyl groups having aminimide groups attached thereto through an ether linkage and to methods for attaching said aminimide...
3998792 Polyvinyl butyral polymer mixture for making intermediate sheeting for laminated glass  
Mixtures of two distinct polyvinyl butyral grades, viz., one high viscosity and one low viscosity grade, both having a narrow molecular weight distribution exhibit good processing characteristics...
3997501 Polyol-silicate ester-exchange reaction product  
Protective coating compositions are prepared comprising aliphatic polyol-derived silicates and zinc dust as a filler. The compositions provide long-life protection for ferrous substrates against...
3991109 Diacyl peroxy compounds  
I. A novel class of compounds Xn --Rp --Ym where R is a 2-4 valence aliphatic, cycloaliphatic or aromatic radical, X is an acylating function; Y is a peroxy containing group and n and m are each...
3967922 Granular dyestuff preparations based on polyvinylalcohol as the carrier  
Pulverulent or granular dyestuff preparations containing water-soluble dyestuffs and polyvinyl alcohol are suitable for the preparation of concentrated dyestuff solutions in water, water-soluble...
3959242 Silane grafted poly(vinyl alcohol) film  
A thermoplastic composition suitable as a mold release surface for preparing cast articles which comprises a silane grafted poly(vinyl alcohol) prepared by the method which comprises incrementally...
3948866 Polymerization with the aid of macromolecule having both a monomer soluble portion and suspension soluble portion  
A process for the suspension polymerization of ethylenically unsaturated monomers -- particularly for the preparation of water-soluble polymers -- wherein a liquid monomer phase is polymerized...
3943150 Salt of b-diethylaminoethyl ester of p-aminobenzoic acid with acetal of polyvinyl alcohol and glyoxalic and method of preparing same  
A salt of β-diethylaminoethyl ester of p-aminobenzoic acid with the acetal of polyvinyl alcohol and glyoxalic acid which has the formula: ##EQU1## wherein n is a degree of polymerization within...
3941750 Polyvinylpyrenal--an intrinsic photoconductor and active matrix polymer  
A polyvinylpyrenal copolymer obtained by condensing the corresponding aromatic aldehyde with a copolymer of vinyl alcohol and having a number average molecular weight of at least 5,000. Also...
3934587 Disposable articles having a water-permeable and water-repellent surface  
A novel material is disclosed and a process and apparatus for making the same, which process comprises reacting one side of a solid sheet or film of a polymeric compound containing reactable...
3933746 Photopolymerizable polymers having anhydride-containing groups  
The polymer herein described comprises an anhydride-containing group represented by the structure: ##EQU1## wherein R is a residue of a dibasic acid selected from the group consisting of aliphatic...
3932564 Electroconductive resins and process of preparation  
Electroconductive cationic resins prepared by the reaction of a 1,4-dihaloalkene-2 compound and a di(tertiary amine). The resins are quaternary ammonium compounds. They may be prepared in aqueous...
3927242 Substrate coated with a layer of polyquaternary polyelectrolytes  
A substrate such as paper is coated with a layer of polyquaternary polyelectrolyte formed by the polymerization in absence of oxygen of a monomer of the general formula: ##EQU1## where x is 3 or...
3912697 Light-sensitive polymers  
A novel class of light-sensitive polymers and their use in photographic reproduction is described. The polymers contain a light-sensitive moiety selected from the group consisting of...
3884689 Polycyclic aromatic polymer as a photoconductor or overlayer  
A polyvinylpyrenal copolymer obtained by condensing the corresponding aromatic aldehyde with a copolymer of vinyl alcohol and having a number average molecular weight of at least 5,000. Also...
3883489 Process for the preparation of a dispersible vinyl acetate/ethylene polymer powder  
Vinyl acetate/ethylene copolymer powders are obtained by spray-drying of the corresponding aqueous polymer dispersions while simultaneously adding finely divided inorganic materials as anti-caking...