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:
May. 18, 1976
Filed:
Nov. 09, 1973
Hitachi, Ltd., , JA;
Abstract
A process for preparing a thermoplastic resin composition comprises subjecting a cross-linked rubber obtained by copolymerization of an acrylic ester represented by the general formula CH.sub.2 = CHCOOR, wherein R is an alkyl group having 2 to 8 carbon atoms, and a cross-linking agent to graft polymerization with a polymerizable vinyl or vinylidene monomer in the presence of polyvinyl chloride resin particles through radical polymerization. The present disclosure also relates to a process for preparing a mixed composition comprising the thermoplastic resin composition prepared above and a powder of polyvinyl chloride resin. The thermoplastic resin composition has good weather-resistance properties and good mechanical properties. As the thermoplastic resin composition can easily be mixed with a polyvinyl chloride resin, a polyvinyl chloride resin composition having excellent properties is obtained by simple mixing operation.