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:
Aug. 10, 1976
Filed:
Sep. 02, 1975
Applicant:
Inventors:
Russell K Griffith, Chagrin Falls, OH (US);
John F Jones, Cuyahoga Falls, OH (US);
Assignee:
Standard Oil Company, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
260879 ;
Abstract
Impact-resistant polymers which have low permeability to gases and vapors are prepared by polymerizing an olefinic nitrile, such as acrylonitrile, optionally with an acrylic ester, such as methyl acrylate, to at least about 70% conversion, and then introducing into the polymerization reaction medium a conjugated diene monomer, such as butadiene-1,3, and completing the polymerization reaction in the presence of said diene monomer.