Cleaning or stripping composition and method

Details Cleaning or stripping composition and method Cleaning or stripping composition and method

1992-10-22

1995-02-21

Pal, Asok

Cleaning and liquid contact with solids

Processes

Paints, varnishes, lacquers, or enamels, removal

252135, 252139, 252156, 252159, C23G 114, C11D 706, B08B 304

Patent

active

053912349

ABSTRACT:
A composition and method for stripping protective coatings from surfaces, particularly metal surfaces such as aluminum, without blemishing the metal surface comprises a silicate-containing, alkaline component and a product of chemical interaction in solution between silicate and acid other than silicic acid in an amount to inhibit attack of the substrate being cleaned or to which the coating was applied. Preferably the acid reacted with the silicate is gluconic, or most preferably, boric acid.

REFERENCES:
patent: 3494868 (1970-02-01), Gray
patent: 3553144 (1971-01-01), Murphy
patent: 3563900 (1971-02-01), Murphy
patent: 3615827 (1971-10-01), Murphy
patent: 3663447 (1972-05-01), Murphy
patent: 3663476 (1972-05-01), Murphy
patent: 3671465 (1972-06-01), Murphy
patent: 3766076 (1973-10-01), Murphy
patent: 3819529 (1974-06-01), Murphy
patent: 3972839 (1976-08-01), Murphy
patent: 4539133 (1985-09-01), Boskamp
patent: 4788005 (1988-11-01), Castro

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