Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1997-05-30
1999-11-30
Gupta, Yogendra
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510201, 510202, 510206, 510212, 510500, 510505, 510506, 134 38, C09D 900, C11D 750, B08B 308
Patent
active
059942827
ABSTRACT:
Stripping compositions based on a polar aprotic solvent, an ether and water. The composition is characterized in that it comprises at least the following: 1) a polar aprotic solvent, especially dimethyl sulfoxide (DMSO) or N-methyl pyrrolidinone (NMP); 2) an ether chosen from anisole and tetrahydrofuran (THF); 3) water.
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Elf Atochem S.A.
Gupta Yogendra
Webb Gregory E.
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