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:
May. 01, 1984
Filed:
Jul. 22, 1982
Applicant:
Inventors:
Ronald D Mathis, Bartlesville, OK (US);
Jerry O Reed, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ;
U.S. Cl.
CPC ...
134-3 ; 134 28 ; 134 38 ; 134 41 ;
Abstract
A process for the removal of poly(arylene sulfide) deposits on metal surfaces is provided by contacting the deposit with at least one diaryl ether under temperature conditions and for a time sufficient to remove said poly(arylene sulfide) deposits. A process for the cleansing of metal parts having poly(arylene sulfide) deposits is also provided which comprises treatment with a diaryl ether, and thereafter contacting the ether treated part with an alcohol, washing the part with water, drying the part, and thereafter contacting the dried part with concentrated HNO.sub.3 followed by water washing and drying.