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:
May. 14, 1991
Filed:
Aug. 31, 1989
Applicant:
Inventors:
Lacey E Scoggins, Bartlesville, OK (US);
Kenneth C Hoover, Bartlesville, OK (US);
Wei-Teh Wade Shang, Nagoya, JP;
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528310 ; 528323 ; 528388 ;
Abstract
A process is provided for the production of aromatic sulfide/sulfone polymers which comprises contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) water, and (3) a complex comprising at least one alkali metal hydrosulfide.