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:
Apr. 17, 1979
Filed:
Mar. 07, 1978
Douglas C Edwards, Sarnia, CA;
Kyosaku Sato, Sarnia, CA;
Polysar Limited, Sarnia, CA;
Abstract
A process is provided, and the product of that process, for the production of improved silica filled rubbery vulcanizates in which process a mixture is prepared comprising 100 parts by weight of a vulcanizable hydrocarbyl polymer containing hydroxyl groups, about 5 to about 100 parts by weight of silica and about 1 to about 10 parts by weight of magnesium oxide, the mixture is subjected to shearing at an elevated temperature, cooled, vulcanization active compounds are incorporated and then vulcanized. Such vulcanizates may be generally used especially where light-colored products are desired.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile