Method of cleaning using partially fluorinated ethers having a t

Details Method of cleaning using partially fluorinated ethers having a t Method of cleaning using partially fluorinated ethers having a t

1991-11-01

1993-12-28

Brunsman, David

Cleaning and liquid contact with solids

Processes

Oils, grease, tar, or wax removal, by dissolving

134 2, 252170, 252364, C23G 5032, B08B 700

Patent

active

052735923

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.

REFERENCES:
patent: 2200354 (1940-05-01), Bishop, Jr.
patent: 3128315 (1964-04-01), Hardies
patent: 3904430 (1975-09-01), Tipping et al.
patent: 4024192 (1977-05-01), Benninger et al.
patent: 4035258 (1977-07-01), Reusser
patent: 4999127 (1991-03-01), Merchant
patent: 5023009 (1991-06-01), Merchant
patent: 5023010 (1991-06-01), Merchant
patent: 5026498 (1991-06-01), Merchant
European Patent Application Abstract EP 454109 30 (Oct. 1991).

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