Brown stain suppressing phenol free and chlorinated hydrocarbons

Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

REFERENCES:
patent: 4070203 (1978-01-01), Neisius et al.
patent: 4165294 (1979-08-01), Vander Mey
patent: 4165295 (1979-08-01), Vander Mey
patent: 4215005 (1980-07-01), Vander Mey
patent: 4304681 (1981-12-01), Martin et al.
patent: 4395348 (1983-07-01), Lee
patent: 4401747 (1983-08-01), Ward et al.
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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Brown stain suppressing phenol free and chlorinated hydrocarbons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brown stain suppressing phenol free and chlorinated hydrocarbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brown stain suppressing phenol free and chlorinated hydrocarbons will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-576784

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.