Antifreeze composition

Details Antifreeze composition Antifreeze composition

1990-03-22

1992-01-14

Lieberman, Paul

Compositions

Heat-exchange, low-freezing or pour point, or high boiling...

Organic components

252 74, 252 76, 252 77, 252 785, 252 79, 25238923, 25238953, 25238961, C09K 500

Patent

active

050808184

ABSTRACT:
An antifreeze composition comprising a glycol and water, containing (A) a phosphoric acid compound, (B) a compound of at least one metal selected from the group consisting of manganese and magnesium, (C) a corrosion-proofing agent, and optionally (D) at least one compound selected from the group consisting of (a) an aromatic polybasic acid or a salt thereof, (b) an aliphatic dicarboxylic acid or a salt thereof, (c) a molybdate, (d) a tungstate, (e) a homopolymer derived from an alkylene glycol monoallyl ether or a maleic type monomer, and (f) a copolymer thereof with another monomer and having a pH value in the range of 6.5 to 9.

REFERENCES:
patent: 3809152 (1974-05-01), Boehmer
patent: 4338209 (1982-07-01), Manabe et al.
patent: 4548787 (1985-10-01), Wilson et al.
patent: 4584119 (1986-04-01), Duranleau et al.
patent: 4587028 (1986-05-01), Darden
patent: 4592853 (1986-06-01), Darden et al.
patent: 4711735 (1987-12-01), Gulley
Chemical Abstracts, "The Protection of High-Efficiency Solar Thermal Collectors", vol. 94, No. 20, 159832k, 1980.

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