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:
Dec. 28, 1993
Filed:
Nov. 01, 1991
Applicant:
Inventor:
Chien Chi Li, East Aurora, NY (US);
Assignee:
AllieSignal Inc., Morristown, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23G / ; B08B / ;
U.S. Cl.
CPC ...
134 40 ; 134-2 ; 252170 ; 252364 ;
Abstract
The present invention provides a method of substantially dissolving contaminants or removing contaminants from the surface of a substrate. The method comprises the step of using a solvent of the Formula ##STR1## wherein R is a hydrocarbon having 1 to 3 carbon atoms and A and B are the same or different and partially fluorinated or perfluorinated alkyl groups having 1 to 2 carbon atoms.