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. 13, 1988
Filed:
Jul. 01, 1987
Applicant:
Inventors:
Alan Nevin, Cheshire, GB;
Ian Shirley, Cheshire, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C08F / ;
U.S. Cl.
CPC ...
428421 ; 4284111 ; 428457 ; 4284735 ; 428689 ; 428698 ; 427240 ; 4273855 ; 4273881 ; 4273935 ; 252500 ; 5253261 ; 5253321 ; 525386 ; 528481 ; 528497 ; 528503 ;
Abstract
A process for the preparation of a polymer composition which comprises a polyarylene which process comprises treating a first composition comprising a polycyclohexadiene, a suitable additive and a solvent for the polycyclohexadiene to a suitable heat treatment such that at least a major portion of the cyclohexenylene rings in the polycyclohexadiene are converted into aromatic groups.