Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1983-05-20
1985-01-01
Willis, Prince E.
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
252549, 252558, 252171, C11D 343, B08B 308
Patent
active
044915306
ABSTRACT:
Stripping solution compositions which avoid the problem know as "brown staining" are provided. Relevant stripping solutions are those that are free from phenol and chlorinated hydrocarbon compounds and comprise a surfactant alkylarylsulfonic acid having 12-20 carbons, a hydrotropic aromatic sulfonic acid having 6-9 carbons and a halogen-free aromatic hydrocarbon solvent with a boiling point above 150.degree. C. To suppress brown staining, a water soluble sulfone is incorporated into the stripping solution. The stripping compositions effectively remove organic polymeric substances from inorganic substrates and are substantially clear water rinsable.
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patent: 4165295 (1979-08-01), Vander Mey
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patent: 4304681 (1981-12-01), Martin et al.
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patent: 4403029 (1983-09-01), Ward et al.
Bakos, P. et al., "Stripping Agent for Photoresists, ", IBM Technical Disclosure Bulletin, vol. 8, No. 12, May 1966.
Allied Corporation
Friedenson Jay P.
Plantamura Arthur J.
Stewart Richard C.
Willis Prince E.
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