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:
Sep. 28, 1993
Filed:
Jul. 08, 1991
Applicant:
Inventors:
Hajime Kitamura, Ichihara, JP;
Ichiro Kaneko, Ibaraki, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525317 ; 525308 ; 525305 ; 525302 ; 525239 ; 525262 ;
Abstract
Matte vinyl chloride polymers are prepared by suspension polymerizing a vinyl chloride monomer or a vinyl monomer mixture mainly comprising vinyl chloride in an aqueous medium in the presence of (A) a polyfunctional monomer having at least two ethylenic double bonds in a molecule and (B) a polymeric matting agent containing 3 to 25% by weight of a tetrahydrofuran-insoluble gel fraction. The polymers are effectively moldable and present uniform matte effect.