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:
Mar. 27, 2001

Filed:

Oct. 03, 1997
Applicant:
Inventors:

Katsuya Takigawa, Yokohama, JP;

Umekichi Sasaki, Yokohama, JP;

Satoshi Suda, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 ;
U.S. Cl.
CPC ...
C09K 5/04 ;
Abstract

A refrigerator oil for use with an HFC refrigerant containing HFC-134a and/or HFC-125, which comprises an alkylbenzene oil containing at least 60% by weight of alkylbenzenes having a molecular weight of 200 to 350. An oil composition for use in a refrigerator, which comprises the refrigerator oil mentioned above and an HFC refrigerant containing HFC-134a and/or HFC-125, together with or without an additive such as a phosphoric ester compound.


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