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. 19, 1994
Filed:
Jan. 18, 1991
Neil S Davidson, Stirling, GB;
Hilda A Leiper, Stirling, GB;
Colette A Di Murro, Edinburgh, GB;
Kenneth Wilkinson, Dunblane, GB;
BP Chemicals Limited, London, GB;
Abstract
Oxidatively stabilized polyolefin polymers containing an antioxidant are made more resistant to loss of antioxidant by converting at least some of the antioxidant comprising a polymer of dicyclopentadiene and a phenolic compound into a form non extractable with cyclohexane. The conversion is preferably by reaction in the melt phase in the presence of a radical initiator. Addition of organotin esters, sulphides, oxides or thioethers reduces the color.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile