Abstract: This invention relates to a polyvinyl chloride resin composition containing said resin and a significant amount of a polymer of butadiene in the form of a shell-core polymer wherein a polymer of methylmethacrylate forms said shell and completely encapsulates the core containing the butadiene polymer.

Abstract: Disclosed are improved styrene-butadiene (SBR) core-alkyl acrylate/methacrylate shell-polymer compositions and an improved process for applying patterns to textiles by screen printing employing these polymer compositions as binders. The process for preparing the improved polymers is also set forth. The core comprises an SBR copolymer which contains an antioxidant and is at least partially encased by an integral shell of a copolymer of an alkyl acrylate or methacrylate which is formed by copolymerization with an ultraviolet light stabilizer. When used as binders for screen printing, these compositions produce textiles which exhibit a desirable combination of crock fastness, cyclic aging and hand properties.

Abstract: Aqueous dispersions of soft polymers, and particularly butadiene-styrene copolymers, containing high amounts of carboxylic acid units are prepared by a core-shell polymerization technique in which there is first polymerized around the soft polymer an inner shell layer of methylmethacrylate, thereby completely encasing the soft polymer particles. Then an outer layer of methylmethacrylate and methacrylic acid monomers is polymerized around the encased particles. The product contains up to about 40 mole percent of methacrylic acid units in the shell.

Abstract: Disclosed are improved core-shell polymer compositions and an improved process for applying patterns to textiles by screen printing employing these polymer compositions as binders. The polymer comprises a core of styrene-butadiene copolymer which is at least partially encased by an integral shell of a copolymer of butyl methacrylate and methyl acrylate. When used as a binder in a screen printing process, this composition produces textiles which exhibit a surprisingly desirable combination of the properties of crock fastness, cyclic aging and hand.