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5130370 |
Molding compositions of polyvinylbutyral blend
A melt blended thermoplastic molding composition consisting essentially of, on a weight basis: (A) 40 to 70 parts plasticized polyvinyl butyral; (B) 60 to 30 parts poly(methylmethacrylate); (C) 0...
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5126403 |
Reinforced polyorganosiloxane elastomers
A curable polydiorganosiloxane is reinforced by mixing with a solution of polyvinylalcohol (PVA) or a modified PVA. The polydiorganosiloxane is then cured and the solvent is extracted to yield a...
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5126382 |
Superabsorbent compositions and a process for preparing them
Metal ion crosslinked superabsorbent polymers and a process for making them are described wherein high concentrations of polyhydroxylated materials are incorporated in order to reduce the...
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5120772 |
Radiation-polymerizable composition and element containing a photopolymerizable mixture
This invention relates to a radiation polymerizable composition for use in a phtographic element such as a lithographic printing plate comprising in admixture a) a binder resin having the...
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5120799 |
Polymeric compounds having pendant sulphonato groups and method of producing the polymeric compounds
A polymeric compound is derived from a polyhydric material and has pendant sulphonate groups of the general formula ##STR1## where X is an aliphatic, aromatic, carbocylic or heterocyclic group; Y...
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5118758 |
Coprecipitated silicate-carbinol particles
A fine powder is obtained by first dissolving polyvinylalcohol and tetraalkoxysilicate in a common solvent to obtain a reaction product, then spraying a fine mist of a solution of the reaction...
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5112886 |
Allantoin salts of quaternary nitrogen containing polymers for use in skin conditioning, cosmetic and pharmaceutical formulations
Polymers having pendent cationic quaternary nitrogen containing groups form salts with allantoin which provide for a film forming moisture barrier in skin conditioning lotions, ointments, cosmetics...
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5110481 |
Method for separation of polyvinyl alcohol from aqueous solutions thereof using peroxodisulfates
A method for separation of PVA from an aqueous solution thereof such as the waste water containing PVA from the pretreatment of a textile product, in which a peroxosulfate such as ammonium...
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5102951 |
Poly(alpha-ketoester) compound and production thereof
The present invention provides a poly(alpha-ketoester) compound represented by the formula (1): ##STR1## wherein G is a residue of an active hydrogen-containing compound G-(X-H) n , or an alkyl,...
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5100957 |
Protective dust cover for photomask or reticle
A protective dust cover for a photomask or reticle useful for forming semiconductor integrated circuits, which is a transparent thin film cover to be disposed with a certain distance from the...
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5093416 |
Production of poly (polyisocyanate-alkali metal silicate) products
Poly(polyisocyanate-alkali metal silicate) products are produced by mixing and reacting an alkali metal silicate glass powder with a polyisocyanate compound and may be produced in the form of a...
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5089555 |
Thermosetting powder composition
A thermosetting powder composition is disclosed which comprises: a functional thermoplastic resin capable of reacting with a cyanate group and a molecular weight of at least 10,000; a...
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5086111 |
Amine functional polymers containing acetal groups
Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals, and polyvinylacetals are useful as flocculants and epoxy resin and polyurethane crosslinking agents and are provided...
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5071648 |
Polymeric broad-spectrum antimicrobial materials
A sustained and controlled release form of iodine is achieved by a complex of polyvinyl alcohol and the iodine characterized by a low water solubility. The polyvinyl alcohol may be reacted to form...
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5069719 |
Organic solvent based ink composition
Disclosed is an organic solvent based ink composition which contains a specific dye and an organic solvent, especially an alcohol or a glycol and which has excellent stability with time and good...
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5068282 |
Process for producing a polyvinyl acetacetal resin for use in a heat transfer sheet
A heat transfer sheet comprises a substrate sheet and a heat transfer layer laminated on the substrate sheet and containing a dye which can be caused to migrate by heating to be transferred onto a...
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5061515 |
Lacquer binders, a process for coating heat resistant substrates and the coated substrates
The present invention is directed to lacquer binders containing polyvinyl acetal which are suitable for the formation of films and coatings and contain mixtures of a) polyvinyl acetals and b)...
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5053228 |
Polymeric temperature sensitive drug carrier
The drug carrier of this invention provides a temperature-sensitive polymer chemically bonded to a drug. The drug carrier is capable of releasing a drug continuously in the body. The drug carrier...
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5053455 |
Graft polymers, containing polyvinyl acetal groups, on polyurethane grafting substrates, processes for the preparation thereof, and the use therefor
Polymers with polyvinyl acetal groups, which contain acetalized polyvinyl alcohol groups on polyurethane grafting substrates and which are prepared from graft polymers, containing vinyl alcohol...
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5051468 |
Polymers comprised of fully and partially hydrolyzed poly(vinyl acetate) and alkyl ketene dimer repeating units and aqueous solutions containing such polymers
Polymers having the general idealized structure: ##STR1## wherein a, b and c represent the number of monomer units of each respective monomer, the sum of a and b is 200 to 5000, b is the product of...
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5036137 |
Silated polyvinyl alcohol process
A silated polyvinyl alcohol with a degree of substitution (D.S.) between 0.005 and 0.5 is prepared by reacting polyvinyl alcohol with a silating agent. Preferred silating agents are...
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5030688 |
Ionomeric polyvinyl butyral
Polyvinyl butyral resin containing a modification-promoting amount of up to about 15 mole % ionomeric groups which are preferably the metal sulfonate salt of an aldehyde chemically combined with...
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5021505 |
Photosensitive poly(vinyl alcohol) derivative
A photosensitive poly(vinyl alcohol) derivative comprising units of the fula ##STR1## wherein R 1 is alkylene, R 2 is hydrogen or a lower alkoxy, ##STR2## is a quaternary aromatic...
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5019624 |
Polyvinyl acetals and their use
Acetals of polyvinyl alcohol are described in which at least some of the acetal groups are derived from terminally etherified oxyethylene aldehydes/oxaalkanals of the formula ##STR1## The new...
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5001191 |
Process for dry cationization of polyvinyl alcohol
A process for the dry cationization of polyvinyl alcohol (PVA) by reaction of alkylidene epoxides with PVA in alkaline medium in the presence of water, in which the reaction mixture contains 11 to...
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4999253 |
Polyvinyl butyral sheet
Plasticized polyvinyl butyral sheet containing a modification-producing amount of ionomeric groups which are preferably the metal sulfonate salt of an aldehyde chemically combined with oxygen atoms...
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4999078 |
Reducing blocking and increasing flow of plasticized polyvinyl butyral sheet
A process for increasing both resistance to blocking and flow during laminating of plasticized polyvinyl butyral sheet which comprises incorporating into the formulation of the sheet a...
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4992509 |
Polyvinyl acetal resin, use thereof as an adhesion promoting additive, method of producing same, and adhesive composition comprising same
Polyvinyl acetal resin, use thereof as an adhesion promoting additive, method of producing same, and adhesive composition comprising same An acrylate- or methacrylate-substituted polyvinyl acetal...
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4990563 |
Water soluble silated polyvinyl alcohol
A silated polyvinyl alcohol with a degree of substitution (D.S.) between 0.005 and 0.5 is prepared by reacting polyvinyl alcohol with a silating agent. Preferred silating agents are...
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4988763 |
Catalyzed bulk process for producing cyclic ester-modified acrylic polymers
A bulk process for the formation of hydroxyl-containing polymeric compositions comprising the reaction in the presence of a Lewis acid catalyst of a hydroxyl group containing ethylenic polymer with...
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4988761 |
Process for producing a low water content PVA hydrogel
The present invention relates to a method of producing polyvinyl alcohol hydrogel characterized by the following features: the production process consists of a low-temperature processing stage in...
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4981909 |
Plasma-resistant polymeric material, preparation thereof, and use thereof
Plasma-resistant polymeric materials are prepared by reacting a polymeric material containing reactive hydrogen functional groups with a multifunctional organometallic material containing at least...
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4978713 |
Polyvinyl alcohol derivatives containing pendant vinylic monomer reaction product units bound through ether groups and hydrogel contact lenses made therefrom
A contact lens of a crosslinked, organic aprotic solvent insoluble, substantially transparent polymer of a derivative of a polyvinyl alcohol having a weight average molecular weight of at least...
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4970253 |
Thermoplastic plasticized polyvinylbutyral molding composition
Thermoplastic plasticized polyvinylbutyral molding compositions, in particular films of improved tensile strength and reduced tackiness are prepared by acetalization of polyvinyl alcohol, capable...
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4968744 |
Polyvinyl butyral polyblend
A polyblend comprising first and second polyvinyl butyral components admixed with plasticizer, one of the components present in minor amount (preferably 10 to 30 weight %) containing chemically...
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4968745 |
Method of producing ionomeric polyvinyl butyral
A method of producing ionomeric polyvinyl butyral by the steps of (a) condensing polyvinyl alcohol with an aldehyde containing an acid group in the presence of a catalyst; (b) acetalizing the...
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4968743 |
Process for preparing polyinyl butyral sheet
In a process for preparation of polyvinyl butyral sheet by blending polyvinyl butyral with plasticizer and extruding the blend to form the sheet, the step in combination therewith of including in...
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4966924 |
Soft contact lens and method of manufacturing the same
A soft contact lens of PVA having a tensile strength of not less than 10 kg/cm 2 , a water content ranging from 40 to 95% by weight, a visible light transparency of not less than 90%, and an oxygen...
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4965313 |
Novel photocurable and heat-curable polyvinyl butyral resin
The invention discloses a novel modified polyvinyl butyral polymer having photocurability and heat-curability containing an ethylenically unsaturated moiety, which is introduced by the reaction of,...
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4954566 |
Preparation of polymers with pendant organic moieties bound thereto via ester and/or amide bridges
A one-pot process for preparing a polymer carrying pendant organic residues attached thereto via linking bridges comprises forming an organic solvent solution or suspension of an organic acid,...
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4950714 |
Cross-linked polyvinyl butyral sheet
Polyvinyl butyral (PVB) resin lightly cross-linked through intermolecular linkages developed through increase PVB molecular weight and the modulus of a plasticized sheet formed therefrom intended...
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4939203 |
Gel for retarding water flow
A polyvinyl alcohol-aldehyde gel having a high water content and low degree of crosslinking is provided which has improved stability. The gel can be used to retard the flow of water in subterranean...
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4937284 |
Modified polyolefin, method for making the same, and use thereof
Modified polyolefin comprising a polyolefin linked to a hydrolyzable silane which is reactable with polyvinyl alcohol and being chemically bound to polyvinyl alcohol by the silane, and method for...
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4931501 |
Modified poly(vinyl alcohol) containing morpholinoalkylether groups
An amine functional copolymer of vinyl alcohol is provided by copolymerizing a vinylester with a morpholinoalkylvinylether or a morpholinoalkylallylether and then hydrolyzing the ester groups in...
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4931500 |
Hydrolyzed ethylene-vinyl acetate copolymer
A hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60% by mole and a defree of hydrolysis in the vinyl acetate component of at least 95% by mole, having an ash...
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4921907 |
Resin composition and multilayered structure
A resin composition comprising from about 95 to about 30 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A), comprising ethylene units in an amount of from about 20...
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4921908 |
Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol)
Novel, non-crosslinked copolymers of vinyl trifluoroacetate (VTA) and up to 5 weight percent of the VTA of certain comonomers, such as vinyl esters, vinyl ethers, or disubstituted ethylene...
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4920030 |
Photosensitive coating emulsion for plastic films
A photosensitive coating emulsion for a plastic film comprising an emulsion ontaining a film-forming polymer and a photocrosslinkable polyvinyl alochol containing a photocrosslinkable constituent...
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4908405 |
Graft copolymers of crosslinked polymers and polyoxyethylene, processes for their production, and their usage
The invention relates to graft copolymers of crosslinked polymers and linear polyoxyethylene, processes for their production, and their use as a substrate for peptide or nucleotide synthesis or for...
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4906515 |
Molded article of thermoplastic resin and process for producing the same
There are disclosed (1) an injection-molded thermoplastic resin article having on a surface thereof a copper foil or a copper foil circuit, wherein the thermoplastic resin comprises one of...
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