Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: A compatibilized polymer alloy has been developed which has excellent processability under thermaforming conditions and the molded articles produced from the alloy exhibit superior gloss, shrinkage, surface hardness, polarity, strength and high heat distortion. The alloy is, in general, comprised of a polyolefin composition, a polystyrene copolymer, or polymer blend, and a compatibilizing agent. This polymer composition or alloy is particularly useful in producing packaging materials and food containers.

Abstract: An extrudable elastomeric composition includes an elastomeric polymer and a tackifying resin in which the extrudable elastomeric composition is adapted to form an elastic sheet having a stress relaxation of less than about 30 percent. The elastomeric polymer is a styrene-poly(ethylene-propylene)-styrene thermoplastic elastomeric block copolymer or a mixture of styrene-poly(ethylene-propylene)-styrene and styrene-poly(ethylene-butylene)-styrene elastomeric block copolymers. The extrudable elastomeric composition may also include a polyolefin and/or an extending oil.

Abstract: A composition which contains thermosettable monomers from which continuous products can be made without using continuous carrier material, the composition containing bismaleimide monomers and a thermoplastic polymer having a high molecular weight.Products made from a composition of the present invention are suitable for use in those fields where good temperature resistance, good fire resistance and/or good corrosion and solvent resistance are required in addition to good mechanical properties. Examples are cable sheathing, fire-resistant clothing, asbestos substitutes, high-temperature filters, aircraft interiors, precursors for carbon fiber , food packagings (for example, for use in a microwave oven), capacitor films and filament winding products.

Abstract: A saponified ethylene-vinyl acetate copolymer composition comprising(A) 50 to 99.5 weight % of a saponified ethylenevinyl acetate copolymer,(B) 0.4 to 50 weight % of a polyolefin resin, and(C) a graft polymer obtainable by grafting an ethylenically unsaturated carboxylic acid or a derivative thereof to a polyolefin resin and reacting the adduct with a polyamide oligomer or polyamide, which composition satisfies the relation: M.sub.2 /M.sub.1 =not less than 2 wherein M.sub.2 and M.sub.1 are the melt flow rates of (B) and (A), respectively, under a load of 2160 g at 210.degree. C.

Abstract: This invention relates to a process for the production of a polyoxyalkylene derivative of a phenolic resin, by reacting under base-catalyzed conditions the phenolic resin with the appropriate alkylene oxide(s) so that the polyoxyalkylation is carried out by: A) using a phenolic resin which has a water content of less than 0.5% w/w, B) reacting the phenolic resin initially with about one mole of the alkylene oxide(s) per mole of the resin in the absence of a base catalyst in an inert atmosphere at a temperature below 140.degree. C. until the partial pressure of the alkylene oxide(s) reactant is substantially neutralized, and C) reacting the product from step (B) above with the remainder of the alkylene oxide(s). These derivatives are good emulsifiers and demulsifers.

Abstract: Disclosed are thermoplastic resin compositions, comprising:(a) a polyphenylene ether resin or a resin composition containing a poplyphenylene ether,(b) a modified propylene polymer, or a propylene based resin composition containing the modified propylene polymer and/or a propylene polymer, and(c) optionally, a rubbery substance,wherein the proportion of the component (a) to the sum of the components (a) and (b) is 1 to 90% by weight, and that of the component (b) to the sum of the components (a) and (b) is 99 to 10% by weight, and when the component (c) is present, the proportion of the component (c) to the sum of the components (a) and (b) is 1 to 50 parts by weight per 100 parts by weight of (a) plus (b).

Abstract: The subject invention discloses a styrene-butadiene rubber (SBR) which is particularly valuable for use in making truck tire treads, said rubber being comprised of repeat units which are derived from about 10 weight percent to about 20 weight percent styrene and from about 80 weight percent to about 90 weight percent 1,3-butadiene, wherein the repeat units derived from styrene and 1,3-butadiene have a sequence distribution wherein at least about 55% of the styrene repeat units are in blocks of only one styrene repeat unit, wherein at least about 75% of the styrene repeat units are in blocks of 1 or 2 repeat units, and wherein at least about 5% of the styrene repeat units are in blocks of more than 8 repeat units, wherein from about 32% to about 40% of the repeat units derived from the 1,3-butadiene are of the cis-microstructure, wherein from about 50% to about 60% of the repeat units derived from the 1,3-butadiene are of the trans-microstructure, wherein from about 6% to about 15% of the repeat units derived

Abstract: This invention is a method of curing unsaturated polymers which do not have a significant amount of functional groups which undergo a cross-linking reaction with amino resins and which preferably comprise at least one conjugated diolefin monomer, said method comprising mixing said polymer with an amino resin in the presence of a proton-donating acid catalyst.

Abstract: Thermoplastic molding compositions of a vinyl chloride polymer and one or more emulsion polymers made with special emulsifiers have improved properties for technical application, such as reduced fogging. They are used for the production of molded articles, sheet products and films.

Abstract: A primer for protecting the exterior surfaces of an underground metal pipe against corrosion at temperatures of up to 250.degree. F. includes a butyl elastomer, an aliphatic hydrocarbon resin, a heat curable phenolic resin which crosslinks at between approximately 180.degree. F. and 250.degree. F., and a hydrocarbon solvent. The primer can be effectively utilized in a method which includes the steps of applying the primer to the exterior surface of a metal pipe, allowing the primer to at least partially cure, and applying a protective adhesive tape to the pipe over the primer.

Abstract: Disclosed is an adhesive composition for wood comprising a phenol resin adhesive and a phenol resin highly condensed in a mole ratio (F/P) of formaldehyde (F) to a phenol (P) in the range of 0.8:1 to 1.5:1, having a softening point of 100.degree. to 200.degree. C. and having a number average molecular weight of 2,000 or more, whereby the adhesive is accelerated in hardening to impart fast setting-ability thereto, which causes the pressing temperature to be reduced and makes it possible to raise the allowable moisture content of adherends.

Abstract: Phenolic resins obtainable by Friedel-Crafts alkylation of phenols with polyfunctional compounds are eminently suitable as a reinforcing resin for rubber vulcanizates.

Abstract: The invention relates to a coating composition containingA) 50 to 90% by weight of one or more hydroxyl-containing addition polymers, prepared by copolymerization of ethylenically unsaturated monomers which are in part hydroxyalkyl esters of .alpha.,.beta.-ethylenically unsaturated carboxylic acids andB) 10 to 50% by weight of one or more amino resin crosslinking agentsthe sum of the proportions by weight of A and B being 100% by weight, and suitable auxiliaries and additives, optionally pigments, optionally fillers, organic solvent and an acid catalyst.The coating composition is one wherein the acid catalyst used comprises1) sulfo- or sulfonio[sic]-succinic esters which each contain at least one hydroxyl group and/or2) sulfo- or sulfonio[sic]-succinic polyesters which each contain at least one hydroxyl group.The invention furthermore relates to a process for the preparation of the coating compositions according to the invention and to their use as an automobile repair finish or as a stoving paint.

Abstract: Disclosed in a delustered, thermally shrinkable polyvinyl chloride film which is obtained by extruding and orienting a polyvinyl chloride resin composition in which the polyvinyl chloride is a mixture of (A) a partially crosslinked polyvinyl chloride resin and (B) a non-crosslinked polyvinyl chloride resin in an (A)/(B) weight ratio of from 15/85 to 80/20; and in which the average polymerization degree of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (B) is greater than that of tetrahydrofuran-soluble portion of the polyvinyl chloride resin (A).

Abstract: A blend of 5 to 95 percent of an ethylene vinyl alcohol copolymer and 95 to 5 percent of an amorphous polyamide having fewer than about 0.100 equivalents of carboxyl end groups per kilogram of polyamide exhibits improved oxidative and thermal stability. The blend is useful for preparing films and multiple layered structures including thermoformed structures and oriented shrink films.

Abstract: A rubber composition having low friction is proposed which contains a thermoplastic fluororesin, a thermosetting fluororubber and a low-molecular weight fluorine-containing polymer.

Abstract: Following this procedure for the production of thermoplastic elastomer mixtures, dynamic vulcanization is performed at temperatures ranging between approximately 125 and 250 deg. C. and preferably between 150 and 200 deg. C., and with the aid of a free radical generating agent, on a mixture made up of: a) 95-60% by weight of one or several thermoplastic block copolymers of a monoalkenylarene and a coupled diene having at least two end blocks of monoalkenylarene polymer A and at least one middle block of a polymer of coupled diene O the content of said block A ranging between approximately 8 and 55% by weight respect to the copolymer, whose flow rate must exceed 0.01 and b) 5-40% by weight of one or several copolymers of ethylene and vinyl acetate, containing approximately between 5 and 50% by weight of vinyl acetate, preferably between 15 and 35% of vinyl acetate and with a flow rate between approximately 0.1 and 50, preferably between 0.1 and 10.

Abstract: A primer composition has an excellent bonding ability to materials such as polyethylene, polypropylene and synthetic rubbers and is easily bonded to functional coatings. A composite layer of a coating and the primer composition having a function of addition is formed on the surface of these materials by coating or the like. A primer composition is employed which is suitable for such uses wherein a polymer of an unsaturated dicarboxylic acid and a polyolefin or a chlorine denaturated product thereof is used as a main component and a chlorosulfonated polyethylene is applied to improve heat resistance.

Abstract: Composite moisture and oxygen barrier structures in the form of films, sheets, tubes, and bottles are described which are composed of foils of high density polyethylene and foils of polar oxygen barrier resins adhered to each other with a coextruded bonding resin composition composed of blends of predominantly high density polyethylene containing low levels of a grafted unsaturated dicarboxylic acid anhydride and linear low density polyethylenes which are copolymers of ethylene with either octene-1 or butene-1. The preferred dicarboxylic acid anhydride is maleic anhydride. The oxygen barrier resins are preferably ethylene/vinyl alcohol copolymers or amorphous polycarboxylamides from condensation polymerization of aliphatic diamines and aromatic dicarboxylic acids.