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:
Dec. 21, 1976
Filed:
Feb. 27, 1975
Applicant:
Inventors:
Jacqueline Brandli, Brussels, B;
William J Bracke, Hamme, B;
Assignee:
Labofina S.A., Brussels, B;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528487 ; 2608 / ; 526 19 ; 526 23 ; 526 30 ; 526 47 ; 526342 ;
Abstract
A process for producing a copolymer of styrene and acrylonitrile substantially free of acrylonitrile which comprises copolymerizing styrene and acrylonitrile and treating the resulting copolymer with an aqeuous solution of a sulphur compound selected from the group consisting of alkaline sulfides and alkaline disulfides.
Brandli, Jacqueline. (1976). Posttreatment of copolymer of styrene and acrylonitrile (U.S. Patent No. 3998797). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3998797
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile