Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1997-11-12
2000-09-19
Gupta, Yogendra
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510175, 510178, 510499, 510506, C11D 344, C11D 750
Patent
active
061212180
ABSTRACT:
A priming concentrate composition is provided that functions both as a cleaning and adhesive promoting composition for cleaning a substrate and for bonding a subsequently applied photoresist to the substrate. The concentrate composition contains, as essential components, (a) an alcohol, (b) an alcohol ether, (c) an organic or poly acid and (d) a urea or thiourea-containing compound or derivative or analogue thereof or other compound of heteroatoms with the balance being water. The priming composition can be applied to a stationary or moving substrate, as a concentrate or further diluted with an aqueous medium, by brushing, spraying or immersing and the like.
REFERENCES:
patent: 5082584 (1992-01-01), Loth et al.
patent: 5393468 (1995-02-01), Erilli et al.
patent: 5830836 (1998-11-01), Smith et al.
Gupta Yogendra
Webb Gregory
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