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:
Mar. 29, 1994
Filed:
Nov. 13, 1992
Applicant:
Inventor:
Dwayne R Senn, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525471 ; 525537 ; 524609 ; 528388 ;
Abstract
A process is provided for preparing poly(arylene sulfide ketone)/poly(arylene sulfide sulfone) block copolymers comprising: contacting poly(arylene sulfide ketone) prepolymer, at least one dihaloaromatic sulfone, a sulfur source, and a polar organic compound under polymerization conditions. The polymers thus produced exhibit crystalline properties and an increased glass transition temperature.