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. 03, 2015
Filed:
Jan. 31, 2012
Jae Yoon Park, Seoul, KR;
Chang Yeol JO, Busan, KR;
Hong Ki Lee, Gyeonggi-do, KR;
KUKDONG JEYEN COMPANY LIMITED, Gyeonggi-do, KR;
Abstract
The present invention relates to a brake fluid composition comprising (a) a glycol compound and boron-containing compound mixture as solvents, (b) corrosion inhibitior, (c) and tartatric acid, imidazole or a mixture of tartaric acid and imidazole as antioxidants. Provided is a brake fluid composition having improved capabilities for inhibiting thermal oxidation, metallic and high-temperature corrosion. The brake fluid composition according to the present invention significantly improves long-term durability by reducing metal dot corrosion and preventing boronic acid precipitation on a test piece, while having a superior thermal oxidation inhibition capability, and has superior capabilities for inhibiting high-temperature oxidation and corrosion while having negligible effects on the equilibrium reflux boiling point and the wet equilibrium reflux boiling point.