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:
Mar. 25, 1980
Filed:
Oct. 19, 1978
Helen E Mertwoy, Dresher, PA (US);
Henry Gisser, Philadelphia, PA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
There is described novel copolymers of styrene and alpha-n-alkylstyrenes taining at least eleven carbon atoms in the alkyl group. The copolymers, which contain at least 20 mole percent of the alpha-n-alkylstyrenes, are solids and have greater durability with lower coefficients of friction than comparable styrene homopolymers. The copolymers are produced by anionic initiated copolymerization using metallic sodium as the catalyst or by radical initiated copolymerization using benzoyl peroxide or azobisisobutyronitrile as the catalyst.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile