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:
Jun. 28, 1988
Filed:
Nov. 27, 1985
Applicant:
Inventors:
Wen B Shyu, Chagrin Falls, OH (US);
David A Woodhead, South Glamorgan, GB;
Assignee:
The Standard Oil Company, Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525259 ; 525263 ; 525264 ; 525265 ; 525293 ; 525285 ;
Abstract
A method of grafting maleic anhydride or maleic anhydride/styrene onto a polyolefin, in particular polypropylene comprising mixing maleic anhydride or maleic anhydride-styrene/styrene homologue with the polyolefin in the presence of a catalyst having the formula: ##STR1## wherein X=S, O or N;