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:
Feb. 29, 2000
Filed:
Mar. 04, 1993
Applicant:
Inventors:
Douglas G Placek, Fairless Hills, PA (US);
Sundeep G Shankwalkar, East Brunswick, NJ (US);
Assignee:
Great Lakes Chemical Corporation, West Lafayette, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C10M / ;
U.S. Cl.
CPC ...
252 785 ; 252 77 ; 252 783 ; 252 498 ;
Abstract
The present invention is a composition particularly suitable for use as a base for aircraft non-flammable hydraulic fluids with reduced wear according to the ASTM four ball test. The compositions comprise trialkyoxyalkyl phosphate esters optionally formulated with alkyl phosphite esters and alkyl and alkaryl phosphate esters.