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.

Date of Patent:
Nov. 03, 1981

Filed:

Aug. 22, 1979
Applicant:
Inventors:

Yoshiharu Tanizaki, Yokohama, JP;

Kenichiro Minagawa, Yokohama, JP;

Yoshinori Takano, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 781 ; 252 496 ; 252 / ; 252 73 ;
Abstract

A hydraulic fluid composition comprising polyoxyalkylene glycol monoalkyl ether, polyoxyalkylene glycol dialkyl ether, borate ester of polyoxyalkylene glycol monoalkyl ether, and high molecular weight polyoxyalkylene compound, has improved viscosity characteristics, is water-insensitive and is suitable as a central system hydraulic fluid and brake fluid.


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