The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Jun. 20, 2017
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Yasuaki Kodama, Seto, JP;
Tomoyuki Nakano, Fuji, JP;
Takato Sakurai, Annaka, JP;
Kazuhito Yaeda, Shizuoka, JP;
Yoichiro Yoshii, Shizuoka, JP;
Yosuke Kishino, Shizuoka, JP;
Masayuki Nagasawa, Shizuoka, JP;
Shogo Kamenoue, Wakayama, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An automotive engine coolant composition includes: a non-silicone surfactant; an anti-foaming agent containing a mineral oil and silica; and a base, in which the base includes at least one alcohol selected from the group consisting of a monohydric alcohol, a dihydric alcohol, a trihydric alcohol, and a glycol monoalkyl ether and/or water, a kinematic viscosity is 8.5 mm/s or more at 25° C. and 2.0 mm/s or less at 100° C., and with respect to 100 parts by mass of the coolant composition, a content of the mineral oil is 0.01 to 0.4 parts by mass and a content of the silica is 0.003 to 0.1 parts by mass.