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:
Feb. 05, 1980
Filed:
Apr. 02, 1976
Applicant:
Inventors:
Paul Hepworth, Middlesbrough, GB;
Ian S Ripley, Middlesbrough, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 73 ; 526290 ;
Abstract
A synthetic resin is produced by polymerizing with a Friedel-Crafts catalyst a C.sub.5 stream containing butadiene which has been preheated to a temperature of at least 160.degree. C. for a period of up to 5 hours.