Abstract: The present invention is concerned with film-forming polymer dispersions, especially in aqueous systems, such as aqueous solutions of polymers of monoethylenically unsaturated monomers as well as latices or dispersions in an aqueous medium of water-insoluble particles of polymers, such as those obtained by emulsion polymerization. It involves the addition to such aqueous polymer systems in order to improve hardness, blocking-resistance and film-formation at room temperature or below, of a non-volatile, reactive monomer comprising dicyclopentenyl acrylacte or methacrylate to serve as an air-curing coalescent.

Abstract: This invention relates to colloidal dispersions of an alkaline earth metal salt in an oil-soluble acrylic polymer which is polymerized from a monomer system of at least one alkyl or hetero-substituted alkyl ester of an acrylic monomer selected from the group consisting of methacrylates and acrylates represented by the formula: ##STR1## wherein R.sup.1 is a --CH.sub.3 or --H radical, and R.sup.2 is selected from the group consisting of C.sub.1-30 alkyl and hetero-substituted alkyl radicals. This invention also relates to colloidal dispersions as described hereinabove wherein the monomer system further includes at least one non-acrylic polymerizable ethylenically unsaturated nitrogen-containing compound. Preferred polymerizable ethylenically unsaturated nitrogen-containing compounds are those selected from the group consisting of 2- and 4-vinylpyridines and N-vinyl-2-pyrrolidinones.

Abstract: A modifier system for extruding PVC foam comprising two separate core-shell polymers, the shells of which are substantially ungrafted to the cores. Also disclosed is an improved process for extruding PVC foam and improved extruded PVC foam composition and articles.

Abstract: A foamed cementitious material comprising portland cement and a film-forming, water-resistant, alkali-stable emulsion polymer and process of preparing said foamed material is described. Also described are laminated cementitious composites of an unfoamed veneer of a mixture of portland cement and a film-forming, water-resistant, alkali-stable emulsion polymer applied at the surface of a layer of the above-described foamed cementitious material, and, optionally, a layer of plywood or metal further applied at the exposed foamed material surface are described. These materials are useful as exterior building covering articles.

Abstract: Coating compositions comprising an acrylic solution polymer having a molecular weight of about 30,000 to 250,000 and a Tg above 65.degree. F., a solvent therefor, and a compatible acrylic polymer having a Tg less than -20.degree. F., which is soluble in the same solvent, coated substrates, and especially coated impact-modified acrylic sheets having improved resistance to impact.

Abstract: A method of making nylon (polycarbonamide) foam involving the use of a multi-phase carboxylic acid-containing polymer which reacts with the amine groups of the nylon to produce water which blows the foam during the process.

Abstract: A nine-membered ring phosphonate compound having the formula ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 is phenyl or substituted phenyl wherein the substitution is one or more of halogen, nitro, lower alkyl, cyclohexyl, alkoxy, naphthoxy or phenoxy and R.sup.3 and R.sup.4 are the same or different and are lower alkyl of up to eight carbon atoms, preferably methyl, is formed by the reaction of acrylic or methacrylic acid with a compound of the general formula ##STR2## wherein R.sup.2, R.sup.3 and R.sup.4 are as above. The ring phosphonates are useful for forming flame-retardant compositions from mixtures comprising the phosphonate and methyl methacrylate.

Abstract: Polymerizable ethylenically unsaturated N-substituted 2,2-dihydrocarbyl-2, 1,3-benzostannathiazolines prepared by the reaction at the amino group of a N-(aminobenzenesulfonyl)-2,2-dihydrocarbyl-2,1,3-benzostannathiazoline precursor with an ethylenically unsaturated reactant capable of alkylating or acylating said amino group. The benzostannathiazolines can be addition homopolymerized and polymerized with other monomers by means of free radical initiators to give high molecular weight polymers useful in the form of shaped objects and self-supported films, and/or as stabilizers for vinyl chloride polymers and the like.

Abstract: The reaction of a predominantly monosubstituted phenol, an aldehyde, and an aliphatic or cycloaliphatic polyamine containing at least two primary amine groups, the reaction product, the use of the reaction product to impart building tack to a rubber stock, and a blend of rubber and said reaction product.

Abstract: A new class of thermally labile compounds having rust inhibiting properties is disclosed and claimed. The compounds (or formulations thereof) are especially useful as rust inhibitors when used either alone or in multi-purpose additive mixture for distillate hydrocarbon fuels having a major proportion of hydrocarbon fuel distilling within the gasoline distillation range or other oil compositions to provide rust protection in fuel distribution systems which operate at ambient temperature (e.g., pipelines, tank trucks, and storage tanks). Preferred embodiments of the invention are alkylammonium carboxylate salt-ethoxylated alkyl phenol esters of a dicarboxylic acid.

Abstract: A nine-membered ring phosphonate compound having the formula ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.2 is phenyl or substituted phenyl wherein the substitution is one or more of halogen, nitro, lower alkyl, cyclohexyl, alkoxy, naphthoxy or phenoxy and R.sup.3 and R.sup.4 are the same or different and are lower alkyl of up to eight carbon atoms, preferably methyl, is formed by the reaction of acrylic or methacrylic acid with a compound of the general formula ##STR2## wherein R.sup.2, R.sup.3 and R.sup.4 are as above. The ring phosphonates are useful for forming flame-retardant compositions from mixtures comprising the phosphonate and methyl methacrylate.