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:
Aug. 30, 1983
Filed:
Sep. 02, 1982
Applicant:
Inventors:
Irl E Ward, Jr, Easton, PA (US);
Lisa G Hallquist, Easton, PA (US);
Thomas J Hurley, Easton, PA (US);
Assignee:
J. T. Baker Chemical Company, Phillipsburg, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; B08B / ; B01F / ; C09D / ;
U.S. Cl.
CPC ...
430258 ; 430260 ; 430309 ; 430329 ; 430331 ; 134 38 ; 252153 ; 252171 ; 252364 ; 252542 ; 252549 ; 252D / ;
Abstract
Stripping compositions for removing resist materials from substrates comprise compositions of a 2-pyrrolidinone compound and a dialkyl sulfone compound. Either or both of polyethylene glycol and a diethylene glycol monoalkyl ether may be added to provide even more effective stripping compositions.