Alkaline degreasing solution and degreasing method employing the

Details Alkaline degreasing solution and degreasing method employing the Alkaline degreasing solution and degreasing method employing the

1998-12-17

1999-08-10

Gupta, Yogendra N.

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

510220, 510221, 510235, 510289, 510356, 510413, 510421, 510466, 510486, 510511, C11D 1722, C11D 308, C11D 172

Patent

active

059359196

ABSTRACT:
An alkaline degreasing solution containing 0.01 to 3 g/l of alkali silicate calculated as Si concentration, and 0.01 to 10 g/l of a nonionic surfactant having an HLB value (=20.times.Mw/M, where Mw represents the weight of a hydrophilic group part and M represents the molecular weight of the surfactant) of 5 to 11 and a structure being expressed in the following general formula (I), with a pH value of at least 9.5:

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patent: 5423997 (1995-06-01), Ahmed et al.
patent: 5516451 (1996-05-01), Schmitt et al.

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