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:
Jan. 03, 1984
Filed:
Sep. 10, 1982
Applicant:
Inventor:
James W Cleary, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528388 ; 525537 ;
Abstract
Arylene sulfide polymers such as polyphenylene sulfide containing ash-forming impurities or materials verified by contacting an aqueous mixture of such polymer with molecular oxygen and a finite, but small, effective amount of a mineral acid under conditions sufficient to reduce the ash-forming impurities and concurrently at least partially cure the polymer.