Abstract: Improved ethylene polymer fibrils are provided which are characterized in having:(a) a melt temperature of at least about 137.degree. C.,(b) a molecular weight of at least 250,000,(c) at least about 1.2 weight % of polyvinyl alcohol sorbed thereon, and(d) a zero-span breaking length of at least about 25,000.

Abstract: A process for manufacturing thermoplastic materials having an elevated gas impermeability and/or improved physical properties. This process is characterized in that it comprises mixing at least partially imcompatible polymers, gelling them by the combined action of heat, pressure and kneading. The gelled mixture is then subjected to laminar flow through substantially parallel surfaces in which the ratio of the length of the surfaces to the distance between them is greater than 10.A thermoplastic material having increased gas impermeability as well as containers made out of said materials.A packaging method in which the thermoplastic materials of the invention are used to package oxygen sensitive materials.

Abstract: Pressure-sensitive adhesives which contain preferably from 60% to 85% by weight of graft copolymers for use as polymeric pressure-sensitive adhesives, and from 15% to 40% by weight of plasticizers such as phthalate or phosphate plasticizers. The graft copolymer consists of from 5% to 30% by weight of a graft base and from 70% to 95% by weight of grafted-on monomer units. The graft base is a copolymer with from 40% to 85% by weight of ethylene units and from 15% to 60% by weight of vinyl acetate units and optionally up to 10% by weight of monomer units of other unsaturated compounds. It may be replaced wholly or partially by other graft bases. The grafted-on monomer units consist of from 30% to 80% by weight of units of vinyl esters of short-chained carboxylic acids, especially vinyl acetate, from 20% to 70% by weight of units of vinyl esters of relatively long-chained carboxylic acids, for example vinyl laurate, and/or units of esters of .alpha.,.beta.

Abstract: 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 .epsilon.-caprolactam), ethylene polymer and optionally thermoplastic tackifier and carboxylic acid are disclosed. Outstanding adhesive properties with cellulosics, spun bonded polyolefins, aluminum foil and polyester film substrates have been obtained.

Abstract: A protective coating adhered to the surface of a metal substrate such as a pipe using an adhesive composition containing an adhesive component and a polyhydroxy compound protects the substrate from corrosion. The adhesive has improved resistance to cathodic disbonding which generally weakens the adhesive bond between the protective coating and the substrate when a current is impressed through the substrate causing it to function as a cathode. The electric current inhibits loss of metal ions from the substrate to the environment thus reducing corrosion of the substrate.

Abstract: An adhesive composition comprising an aqueous emulsion of polyacrylates sufficiently stabilized in part with a vinyl alcohol polymer, a tackifying resin and a plasticizer is disclosed, which adhesive has utility as a low hazard contact cement for bonding on contact numerous materials to various substrates under a wide range of environmental work conditions.

Abstract: Particles of ethylene-vinyl ester interpolymer containing at least about 30% by weight of copolymerized vinyl ester which are produced in aqueous dispersion media when recovered from such media exhibit a tendency to coalesce into unmanageable agglomerates which is prevented herein by adding an anti-coalescing amount of a lower saturated aliphatic monohydroxyl alcohol such as ethanol or isopropanol to the dispersion media and recovering the interpolymer particles therein in the alcohol-wet condition.

Abstract: Permanently miscible resin blends containing hydrolyzed ethylene-vinyl acetate resin and demonstrating improved impact-resistance compared to the unblending hydrolyzed ethylene vinyl acetate resin are obtained by blending (a) as host resin, a copolymer/terpolymer of ethylene, vinyl acetate and vinyl alcohol in which ethylene is present at from about 2 to about 60 weight percent, vinyl acetate is present at from 0 to about 10 weight percent, and vinyl alcohol is present at about 98 to about 40 weight percent, with (b) an impact-resistance-increasing amount of an impact resin which is a diene-nitrile copolymer in which the diene is present at about 50 to about 85 weight percent and the nitrile is present at about 50 to about 15 weight percent, in the presence of (c) an amount of acid compatibilizing agent and for a period sufficient to provide the aforesaid permanently miscible blends.

Abstract: This invention relates to medical technique and more particularly it relates to biodestructive materials used to manufacture elements for fixation of bone fragments.Said material contains a matrix of non-toxic polymer resolvable in the body consisting of hydrophilic and hydrophobic repeat units, and a reinforcing component of non-toxic fibres or threads resolvable in the body. The matrix polymer is preferably a copolymer of methyl methacrylate and N-vinyl pyrrolidone, and the reinforcing component is preferably fibre or threads of polyamide and oxycellulose.Said material can be used in medicine for fixation of bone fragments in fractures or injuries of bones.

Abstract: An electrographic recording material comprising a conductive sheet support coated with an electrically insulating layer comprising an intimate blend of a polymeric binder and up to 500 parts of an inert finely divided pigment per 100 parts by weight of polymeric binder. The binder comprises from about 40 to about 90 parts by weight of a poly(vinyl acetal) and from about 10 to about 60 parts by weight of a polystyrene or a poly(.alpha.-methylstyrene). The electrographic recording material exhibits improved toner adhesion.

Abstract: 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 compatibilizing agent.

Abstract: Coating compositions comprising intimate blends of a polyvinyl acetal, an alkoxymethyl polyaminotriazine and an oligomeric polystyrene or poly(.alpha.-methylstyrene). The coating compositions may contain up to 500 parts by weight of an inert non-photoconductive pigment per 100 parts by weight of polymer blend. The compositions are useful for the preparation of electrographic recording media which possess improved resistance to curl under variable conditions of humidity.

Abstract: Coating compositions comprising intimate blends of a poly(vinyl acetal) and a low molecular weight polystyrene or poly(.alpha.-methylstyrene). The coating compositions may contain up to 500 parts by weight of an inert non-photoconductive pigment per 100 parts by weight of polymer blend. The compositions are useful for the preparation of electrographic recording media which possess improved toner adhesion.

Abstract: A powder coating composition comprising(A) 70 to 97% by weight of an ethylene resin mixture composed of(A-1) an ethylene copolymer having a melt index of 1 to 50 and containing at least one comonomer selected from the group consisting of alpha-olefins other than ethylene, dienes, vinyl acetate, vinyl alcohol, acrylic acid, functional derivatives of acrylic acid, methacrylic acid and functional derivatives of methacrylic acid, and(A-2) a graft copolymer of polyethylene having grafted thereto an unsaturated carboxylic component, the amount of said unsaturated carboxylic component being 0.001 to 2% based on the weight of the ethylene resin mixture (A), and(B) 3 to 30% by weight of a hydrocarbon wax having a number average molecular weight of about 400 to about 3,000 and a density of not less than 0.9 g/cm.sup.3, said wax having an acid value of up to about 5 when it is a modified wax.

Abstract: Resin blends containing hydrolyzed ethylene-vinyl acetate resin and demonstrating improved impact-resistance properties compared to the unblended hydrolyzed ethylene-vinyl acetate resin are obtained by blending (a) as host resin, a copolymer/terpolymer of ethylene, vinyl acetate and vinyl alcohol in which ethylene is present at from about 2 to about 60 weight percent, vinyl acetate is present at from 0 to about 10 weight percent and vinyl alcohol is present at about 98 to about 40 weight percent, with (b) an impact-resistance-increasing amount of an impact modifying resin which is a partially hydrolyzed ethylene-vinyl acetate copolymer in which ethylene is present at about 25 to about 70 weight percent, vinyl acetate is present at about 20 to about 70 weight percent and vinyl alcohol is present at about 0.5 to about 25 weight percent.

Abstract: 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 organohalogen compound, (3) an inorganic flame-retarding supplementary agent, and (4) at least one polymer selected from a saponified polyvinyl acetate having a saponification degree of greater than 50%, an ethylene/vinyl acetate copolymer and a saponified ethylene/vinyl acetate copolymer, and optionally (5) a reinforcing agent; and a process for production thereof.

Abstract: A novel process is provided for producing an improved electrode for an alkaline battery comprising the steps of adding an unsintered fluorocarbon resin powder to an active material powder and intimately mixing them together, applying a shear force to said mixture to thereby form agglomerates capable of retaining said active material powder in a network structure resulting from a fiber-formation of said fluorocarbon resin powder, adding an aqueous solution of a paste to said agglomerates, kneading them to mutually bind said agglomerates and thus forming a rubbery mass converting said rubbery mass into a sheet and attaching the sheet thus formed onto an electrically conductive core. The process provides an electrode having excellent reactivity and results in improved production efficiency.

Abstract: Dry granular silicon acid, an organic polyol and a silicon tetrahalide are mixed simultaneously to produce an organic halosilicon acid resinous product.

Abstract: The invention is directed towards an improved sealing solution and in particular anti-graffiti solutions. The solution is formed by combining a suitable polyvinyl alcohol with a solution or emulsion of acrylic resin to form a partially cross-linked shared polyvinyl alcohol/acrylic resin, catalyzed by exposure to heat and/or light. The properties of the solution are enhanced by the addition of a zinc complex solution containing zinc tetramine and/or an aldehyde donor such as formaldehyde or glyoxal.

Abstract: 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 among the polymer units of the polysaccharide or polyvinyl alcohol.A nitrite ester of a polysaccharide alcohol having a degree of substitution of less than about 2.0. A nitrite ester of polyvinyl alcohol having a degree of substitution of 1.0 or less.