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:
Nov. 20, 1979
Filed:
Nov. 14, 1977
Applicant:
Inventors:
Kenneth C Benton, Bedford Heights, OH (US);
Timothy J Williamson, Cuyahoga Falls, OH (US);
Assignee:
Standard Oil Company, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525 88 ; 526219 ; 5262305 ; 525 89 ; 525 90 ; 525 98 ; 525 95 ;
Abstract
Novel block copolymers of acrylonitrile having good gas-barrier and impact-resistance properties are prepared by copolymerizing acrylonitrile and another comonomer, such as methyl acrylate, using an elastomer prepolymer containing free-radical initiator groupings as the copolymerization initiator.