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, 1989
Filed:
Sep. 08, 1987
Applicant:
Inventor:
James W Cleary, Augusta, GA (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528222 ; 528125 ; 528126 ; 528226 ; 528388 ;
Abstract
A process is provided for the production of aromatic sulfide/ketone polymers which comprises contacting under suitable polymerization conditions: (1) at least one dihaloaromatic ketone, (2) at least one organic amide, (3) at least one alkali metal hydrosulfide, (4) water, and (5) at least one member selected from the group consisting of (a) alkali metal carbonates and (b) mixtures of alkali metal carbonate with alkali metal hydroxide.