Metal corrosion inhibitive coolant composition containing alkeny

Details Metal corrosion inhibitive coolant composition containing alkeny Metal corrosion inhibitive coolant composition containing alkeny

1997-03-28

1998-12-22

Skane, Christine

Compositions

Etching or brightening compositions

252 75, 252 76, C09K 500

Patent

active

058514198

ABSTRACT:
An effective metal corrosion inhibitive coolant composition having an excellent pH stabilizing property is disclosed, comprising a glycol as a main ingredient, at least one C 4-C 16 alkenylsuccinic acid or its alkali metal salt in an amount of 0.5-5.0 wt. %, and at least one benzoic acid or its derivative in an amount of 0.5-5.0 wt. %. This coolant composition is further characterized in that no phosphates, amine salts, silicates, borates, or nitrites are contained to avoid their detrimental side effects.

REFERENCES:
patent: 4452715 (1984-06-01), Hirozawa
patent: 4743393 (1988-05-01), Hirozawa
patent: 5064552 (1991-11-01), Oppenlaender et al.

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