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:
Oct. 14, 1980
Filed:
Mar. 27, 1978
Applicant:
Inventors:
Akira Yamamoto, Ichihara, JP;
Masaru Iida, Ichihara, JP;
Satoru Miyake, Ichihara, JP;
Hideo Yamaura, Ichihara, JP;
Takeshi Inoue, Ichihara, JP;
Assignee:
Nissan Chemical Industries, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526200 ; 526201 ; 526202 ; 526203 ; 5263442 ; 526909 ; 526910 ;
Abstract
A method of suspension polymerization is carried out by dispersing vinyl chloride in an aqueous medium in the presence of an oil soluble catalyst for polymerization and a polymerization improver having units ##STR1## wherein M represents hydrogen atom or an alkali metal; R represents --H, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 or --C.sub.4 H.sub.9 and n represents an integer of 10 to 1500.