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. 18, 1980
Filed:
May. 17, 1978
Applicant:
Inventors:
Brandford E Giddings, Warrensville Heights, OH (US);
Eddie Wardlow, Jr, Cleveland, OH (US);
Brian L Mehosky, Maple Heights, OH (US);
Assignee:
Standard Oil Company, Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 526200 ; 5263292 ; 526331 ; 528500 ;
Abstract
A method for stripping residual monomer from acrylonitrile copolymers which have been prepared in aqueous suspension by steam stripping acrylonitrile monomer from the suspension at a temperature of from 100.degree. C. up to 135.degree. C. and at a pressure of from about 5 to 30 psig is described.