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

1996-05-14

1999-07-20

Kopec, Mark

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Liquid composition

510201, 510202, 510220, 510232, 510245, 510254, 510365, 510466, 510486, 510511, 510413, 510289, C11D 1722, C11D 308

Patent

active

059256133

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:

REFERENCES:
patent: 3983078 (1976-09-01), Collins
patent: 4683008 (1987-07-01), Betts
patent: 4965014 (1990-10-01), Jeschke et al.
patent: 5240633 (1993-08-01), Ahmed et al.
patent: 5423997 (1995-06-01), Ahmed et al.
patent: 5516451 (1996-05-01), Schmitt et al.
Patent Abstracts of Japan, unexamined applications, vol. 12, No. 56 Feb. 19, 1988, Patent Office Japanese Government and JP-A-62 199 787 (Nippon Paint Co., Ltd.).

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