Abstract: Improved monodisperse spheroidal particle latices of vinyl chloride polymers, e.g., having particle sizes ranging from 0.17 to 0.8 .mu.m or from 0.5 to 1.2 .mu.m, are produced by aqueous emulsion polymerization of vinyl chloride monomer, whether in a single stage or in two stages, in the absence of surface-active agent, in the presence of at least 0.2% by weight of at least one water-soluble alkali metal or ammonium persulfate initiator, and also in the presence of at least one water-soluble auxiliary compound that is a solvent for vinyl chloride, in such amount that the solubility of vinyl chloride in the aqueous phase at 25.degree. C. at atmospheric pressure is at least 1.5 g/l.

Abstract: Improved monodisperse spheroidal particle latices of vinyl chloride polymers, e.g., having particle sizes ranging from 0.17 to 0.8 .mu.m or from 0.5 to 1.2 .mu.m, are produced by aqueous emulsion polymerization of vinyl chloride monomer, whether in a single stage or in two stages, in the absence of surface-active agent, in the presence of at least 0.2% by weight of at least one water-soluble alkali metal or ammonium persulfate initiator, and also in the presence of at least one water-soluble auxiliary compound that is a solvent for vinyl chloride, in such amount that the solubility of vinyl chloride in the aqueous phase at 25.degree. C. at atmospheric pressure is at least 1.5 g/l.

Abstract: The present invention comprises a vinyl chloride copolymer consisting essentially of the copolymerization reaction product of a vinyl chloride monomer composition and at least one polyfunctional compound; said polyfunctional compound being an alkadiene of the formula:CH.sub.2 .dbd.CH--(CH.sub.2).sub.x --CH.dbd.CH.sub.2in which x is a whole number from 1 to 25; said copolymer containing, in moles, from 99 to 99.99% of said monomer composition based on vinyl chloride and correspondingly from 0.01 to 1% of said polyfunctional compound and the process of making such copolymer.

Abstract: Solid particles are coated with a uniform and continuous polyamide layer by immersion in a reaction medium capable of forming polyamides by anionic polymerization in solution.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing tufted floor covering having improved wear-resistance. The content of hydrosoluble compounds dissolved in the aqueous phase in the latex is less than 0.5% by weight in relation to the polymer.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing nonwoven fabrics, and specifically webs for sanitary use having improved breaking strength. The content in the latex of hydrosoluble compounds dissolved in the aqueous phase is less than 0.5% by weight in relation to the polymer.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing tufted floor covering having improved wear-resistance. The content of hydrosoluble compounds dissolved in the aqueous phase in the latex is less than 0.5% by weight in relation to the polymer.

Abstract: Aqueous latex base binder of a synthetic polymer for preparing aqueous compositions for coating paper and board for printing, having improved wet and dry tear strength. The content in the latex of hydrosoluble compounds dissolved in the aqueous phase is less than 0.5% by weight in relation to the polymer.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing nonwoven fabrics, and specifically webs for sanitary use having improved breaking strength. The content in the latex of hydrosoluble compounds dissolved in the aqueous phase is less than 0.5% by weight in relation to the polymer.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing tufted floor covering having improved wear-resistance. The content of hydrosoluble compounds dissolved in the aqueous phase in the latex is less than 0.5% by weight in relation to the polymer.