Plasticized polyvinyl chloride compositions containing silicone frothing agents

A composition for producing a foam by mechanically whipping comprising:

• a. a plastisol which is a mixture of
• 1. a particulate resin selected from the group consisting of a vinyl chloride homopolymer and a vinyl chloride copolymer of a major portion of a vinyl chloride monomer and a minor portion of a copolymerizable dissimilar vinyl comonomer, and
• 2. a high boiling organic liquid plasticizer which is substantially a non-solvent for the particulate resin at room temperature but is capable of dissolving the particulate resin at elevated temperature to form a single phase material which upon cooling to room temperature is a solid material,
• b. from about 1 to about 5 phr of a silicone frothing agent, and
• c. from about 5 to about 10 phr of an oleophilic frothing aid which is a stable, homogeneous mixture of
• 1. at least one member selected from the group consisting of a metal phenate, a metal soap, a metal organosulfonate, a metal organophosphonate and a metal organothiophosphonate wherein the metal is selected from the group consisting of sodium, potassium, lithium, barium, calcium, strontium, cesium, magnesium, lead and tin, the member being oleophilic or forming an oleophilic reaction product with another component present in the composition, and
• 2. at least one member selected from the group consisting of a free acid of a phosphate ester, a free acid of a phosphite ester, a borate ester, an amine, an amine salt of a sulfonic acid and an alkyd resin wherein the ester moiety in the phosphate ester, phosphite ester and borate ester is alkyl, alkenyl, aryl, substituted alkyl, substituted alkenyl, substituted aryl or an alkoxylate thereof.