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:
Nov. 24, 2015
Filed:
Jan. 31, 2012
Jae Yoon Park, Seoul, KR;
Chang Yeol JO, Busan, KR;
Dong Yeol Choi, Gyeonggi-do, KR;
KUKDONG JEYEN COMPANY LIMITED, Gyeonggi-do, KR;
Abstract
A composition for the antifireeze liquid or the coolant includes a cyclo hexane dicarboxylic acid, an azole- or thiazole-based inhibitor, and a metal from an element of group 2, group 5, group 6, or group 7. The composition of the present invention has increased corrosion resistance at a lower density by not containing organic additives, and has a better pH buffering property due to enhanced thermal oxidation stability at a high temperature. Even after a long-term operation for over 200000 km, the composition of the present invention maintains a metal corrosion resistance capability, the appearance of a water pump impeller and the inside of a radiator tube including aluminum remains decent, and the composition has a superior corrosion resistance effect with respect to internal metal parts even after an operational test, thereby allowing use of the composition for the antifreeze liquid or the coolant having a long life.