US 7,540,974 B2
	Antifreeze/coolant composition
Hiroshi Egawa, Gifu (Japan); Michihiro Hori, Gifu (Japan); Hidemi Kado, Gifu (Japan); Yoshiyuki Morita, Saitama (Japan); Mitsuru Osawa, Saitama (Japan); and Ayako Omori, Saitama (Japan)
Assigned to Honda R&D Co, Ltd., Saitama (Japan); and Shishiai-Kabushikigaisha, Gifu (Japan)
Filed on Apr. 25, 2007, as Appl. No. 11/789,726.
Application 11/789726 is a continuation in part of application No. PCT/JP2004/015780, filed on Oct. 25, 2004.
Prior Publication US 2008/0035880 A1, Feb. 14, 2008
Int. Cl. C09K 5/08 (2006.01); C09K 5/00 (2006.01); C09K 5/10 (2006.01); C09K 5/20 (2006.01)

U.S. Cl. 252—71  [252/70; 252/73; 252/74]

9 Claims

1. An antifreeze/coolant composition, consisting essentially of: a) at least one base material selected from the group consisting of water, alcohol, glycol and glycol ether; b) at least one fluorine compound selected from the group consisting of hydrogen fluoride, potassium fluoride, sodium fluoride, ammonium fluoride and lithium fluoride and c) at least one inorganic acid selected from the group consisting of vanadic acid, germanic acid and salts thereof.