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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.:

US 5830833 B1

PDFFull Text
Date of Patent:
Nov. 03, 1998

Filed:

Apr. 10, 1995

Synthetic ester lubricants for refrigerator systems

Applicant:
Inventors:

Hans Dieter Grasshoff, Hamburg, DE;

Vladislav Synek, Buxtehude, DE;

Harald Kohnz, Oberhausen, DE;

Assignee:

RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie and Texaco, , US;

Attorneys:

Mossman; David L.

Whaley; Thomas H.

Primary Examiner:

Margaret Medley

Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
508485 ;
Abstract

Lubricants for refrigeration equipment operating with fluorocarbons as refrigerants are produced by esterification of at least one neopolyol type polyhydric alcohol with an acid component comprising 60 to 80 mol percent n-pentanoic acid, from about 40 to about 10 mol percent of at least one straight chain C.sub.6 to C.sub.10 monocarboxylic acid and from about 0 to about 30 mol percent C.sub.6 to C.sub.10 branched chain monocarboxylic acid. The resulting esters are suitable for use without lubricating oil additives.

Find Patent Forward Citations

Grasshoff, Hans. (1998). Synthetic ester lubricants for refrigerator systems (U.S. Patent No. 5830833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5830833

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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