The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 1981
Filed:
Dec. 22, 1980
Ralph Milkovich, Paoli, PA (US);
David R Warfel, Exton, PA (US);
Elizabeth A Blommers, Newtown Square, PA (US);
Alvin R Ingram, West Chester, PA (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
Polymeric beads for use in forming soft molded articles of low density are produced by formation of a plasticized elastomer-styrene polymeric coating about initial styrene beads, by forming an aqueous suspension of the initial beads, adding thereto an aqueous emulsion of a coating composition consisting of styrenic monomer, a conjugated diene elastomer, and a plasticizer, containing a catalyst and a nonionic surfactant comprising an ethylene oxide condensate of an alkylphenol, the surfactant containing at least thirty moles of ethylene oxide per mole of alkylphenol, and polymerizing the coating composition about the initial beads.