Abstract: Disclosed is a method of making fibrids from thermoplastics synthetics and copolymers thereof by expanding by vaporization, in the presence of a gaseous propellant, a polymer solution under elevated pressure and elevated temperature in a mixing nozzle under shear inducing conditions wherein the true or apparent solution of the polymer in solvent is expanded by the use of superheated steam having an average energy density of at least 50 watt-seconds per cubic centimeter in the mixing nozzle.

Abstract: A graft polymer of polyvinylidene fluoride wherein the polyvinylidene fluoride has grafted thereon a polymer of an ethylenically unsaturated compound and a process for preparing such graft polymer by contacting polyvinylidene fluoride with a monomer of an ethylenically unsaturated compound in the presence of a radical forming catalyst while the polyvinylidene fluoride is maintained in the solid phase under conditions for polymerization of the ethylenically unsaturated compound.

Abstract: Aqueous filler suspension composed of inorganic oxide material and a dispersing agent, characterized in that it contains as dispersing agent an aqueous solution of maleic acid-vinyl alkoxysilane copolymer.

Abstract: An aqueous solution of a mixture of silicon-organic compounds comprising:A. A silane of the general formula: ##STR1## wherein a is 1 or 2, b is 0, 1 or 2, and a +b is equal to or less than 3, p is 0 or 1, and R represents an alkylene moiety of 1 to 8 carbon atoms or arylene moiety, R' represents an alkyl moiety, X represents a hydrolizable moiety and Y represents a functional group or the CH.sub.3 or the CH.sub.2 .dbd.CH moiety, andB. A copolymer having the recurrent unit of the general formula: ##STR2## wherein R" represents OH and/or [O].sup.- [NH.sub.4 ].sup.+ and/or [0].sup.- [Me].sup.+ where Me is an alkali or alkaline earth metal and Z can represent a moiety of the formula: ##STR3## wherein R'" represents an alkyl moiety. Also disclosed are new copolymers having the recurrent unit ##STR4## wherein at least one of the Z moieties is a moiety having the formula ##STR5## wherein R'" represents an alkyl moiety.

Abstract: A process for coating an inorganic silicatic substrate is described wherein the substrate is contacted with a copolymer of vinylacetate and a vinylalkoxysilane followed by water removal.

Abstract: An aqueous solution of a mixture of silicon-organic compounds comprising:A. A silane of the general formula: ##STR1## wherein a is 1 or 2, b is 0, 1 or 2, and a +b is equal to or less than 3, p is 0 or 1, and R represents an alkylene moiety of 1 to 8 carbon atoms or arylene moiety, R' represents an alkyl moiety, X represents a hydrolizable moiety and Y represents a functional group or the CH.sub.3 or the CH.sub.2 .dbd.CH moiety, andB. A copolymer having the recurrent unit of the general formula: ##STR2## wherein R" represents OH and/or [O].sup.- [NH.sub.4 ].sup.+ and/or [O].sup.- [Me].sup.+ where Me is an alkali or alkaline earth metal and Z can represent a moiety of the formula: ##STR3## wherein R"' represents an alkyl moiety. Also disclosed are new copolymers having the recurrent unit ##STR4## wherein at least one of the Z moieties is a moiety having the formula ##STR5## wherein R"' represents an alkyl moiety.

Abstract: Polymer blend of:(a) 4-15 wt.% of a graft polymer composed of 5-70 wt.% of vinyl chloride grafted in the gel phase, onto 95-30 wt.% of a copolymer of ethylene and vinyl acetate or ethylene and alkyl acrylate, said copolymer being 2.5-15 wt.% of vinyl acetate or alkyl acrylate and 97.5-85 wt.% of ethylene,(b) 96-85 wt.% of polyvinyl chloride polymer which is at least one of polyvinyl chloride homopolymer and vinyl chloride copolymer.The blend has high impact strength.

Abstract: An improved process for grafting vinyl chloride onto ethylene-vinyl acetate or ethylene-alkyl acrylate copolymers in the gel phase in the presence of radical formers soluble in the monomer wherein the ethylene-vinyl acetate or ethylene-alkyl acrylate copolymer is in powder form and a combination of at least two initiators having different decomposition temperatures are employed during the grafting, the resultant grafted copolymer and the use of the same as an impact strength improving component or polyvinyl chloride or vinyl chloride copolymers.

Abstract: A graft polymer of polyvinylidene fluoride wherein the polyvinylidene fluoride has grafted thereon a polymer of an ethylenically unsaturated compound and a process for preparing such graft polymer by contacting polyvinylidene fluoride with a monomer of an ethylenically unsaturated compound in the presence of a radical forming catalyst while the polyvinylidene fluoride is maintained in the solid phase under conditions for polymerization of the ethylenically unsaturated compound.

Abstract: A polymer of vinylacetate and a vinylalkoxysilane wherein the alkoxy groups of said vinylalkoxysilane are in a saponified form and the acetyl groups of said vinylacetate are at least partially saponified, the vinyl silane radicals of said copolymer having the formula ##STR1## WHEREIN R is hydrogen, aryl, cycloalkyl or a branched or unbranched saturated alkyl of 1 to 18 carbon atoms;Ma is an alkali metal, NH.sub.4 or H;n is 0 to 2;A process for preparing such a saponified copolymer by contacting a solution of vinylacetate-vinylalkoxysilane copolymer with an alcoholic solution of an alkali metal hydroxide, isolating a precipitated copolymer and dissolving said copolymer in an aqueous alkali metal hydroxide or aqueous ammonia solution; the use of said copolymer as a surface coating agent for inorganic silicaceous substrates.

Abstract: A copolymer of vinyl chloride with ethylene or propylene having a K-value of 45 to 65 and an alkylene (ethylene or propylene) content of 0.5 to 10 weight percent. This product is particularly useful for forming plasticizer-free coatings on substrates by known fluidized bed coating processes and for forming plastizer-free shaped articles by rotational molding processes.