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:
Sep. 15, 1992
Filed:
Jun. 19, 1991
Applicant:
Inventors:
Melvin D Herd, Idaho Falls, ID (US);
Lyle R Kallenbach, Bartlesville, OR (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428332 ; 428426 ; 428457 ;
Abstract
Block copolymers composed of poly(phenylene sulfide) segments and poly(arylene sulfide/sulfone) segments are prepared by first polymerizing a dihalobenzene, utilizing a suitable sulfur source in the presence of a polar organic compound, to form poly(phenylene sulfide) segments then adding and polymerizing a dehaloaromatic sulfone thereby forming said block copolymer which block copolymers are employed as coatings and also are used to enhance compatibility of polymer blends.