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:
Jul. 26, 1977
Filed:
May. 27, 1975
Applicant:
Inventors:
James T Edmonds, Jr, Bartlesville, OK (US);
Robert W Campbell, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 791 ; 260 79 ;
Abstract
A method by which p-phenylene sulfide polymers are produced by admixing p-dihalobenzene, an alkali metal sulfide, an organic amide, a lithium halide, and optionally, a base, at polymerization conditions thereby producing a polymer of higher molecular weight as evidenced by lower melt flow and higher inherent viscosity than is obtained without the addition of the lithium halide.
Edmonds, Jr, James. (1977). Production of p-phenylene sulfide polymers (U.S. Patent No. 4038263). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4038263
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile