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:
Apr. 09, 1985
Filed:
Jan. 12, 1984
Applicant:
Inventor:
Charles W Moberly, Bartlesville, OK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525537 ;
Abstract
A method for treating arylene sulfide polymer in which the polymer is melted and the hot melt stirred in a vessel while contacting the polymer with oxygen for a time sufficient to obtain a product of increased viscosity. In an embodiment of the invention, the product of increased viscosity is transferred to an extruder where contact of the melted polymer with oxygen is continued further to increase the viscosity of the material.