Patent ID: 8557908
Filing Date: 2013-10-15
Classification: B82Y,C08J,C08L

Abstract:
1. A composition for a polymeric nanoclay concentrate comprising: a styrenic polymer in an amount of greater than or equal to 70 percent and less than or equal to 95 percent, based on total weight of composition; wherein the styrenic polymer is a homopolymer of styrene, chlorostyrene, or vinyltoluene, or a random copolymer comprising styrene and one or more monomers selected from the group consisting of acrylonitrile, butadiene, alpha-methylstyrene, ethylvinylbenzene, divinylbenzene, maleic anhydride, and C a nanoclay in an amount of greater than or equal to 5 percent and less than or equal to 30 percent, based on total weight of composition; an emulsifier compound in an amount of 1 to 10 percent, based on total weight of composition; wherein the emulsifier compound is an organic salt compound comprising an anionic substituent covalently bonded to an organic moiety and a cationic counter ion; and a coagulating agent comprising calcium chloride; wherein the nanoclay has been substantially untreated with respect to cation exchange; and where the nanoclay comprises particles that are exfoliated in a polymeric matrix comprising the styrenic polymer.