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:
Dec. 09, 2014
Filed:
Nov. 20, 2008
Masato Kaneko, Ichihara, JP;
Harutomo Ikeda, Ichihara, JP;
Tokue Sato, Ichihara, JP;
Takayuki Kato, Kariya, JP;
Takahiro Hoshida, Kariya, JP;
Masato Takamatsu, Kariya, JP;
Masahiro Suzuki, Kariya, JP;
Shuichi Yasuda, Kariya, JP;
Masataka Muto, Kariya, JP;
Shozo Ikejima, Kariya, JP;
Masahito Yamashita, Kariya, JP;
Masato Kaneko, Ichihara, JP;
Harutomo Ikeda, Ichihara, JP;
Tokue Sato, Ichihara, JP;
Takayuki Kato, Kariya, JP;
Takahiro Hoshida, Kariya, JP;
Masato Takamatsu, Kariya, JP;
Masahiro Suzuki, Kariya, JP;
Shuichi Yasuda, Kariya, JP;
Masataka Muto, Kariya, JP;
Shozo Ikejima, Kariya, JP;
Masahito Yamashita, Kariya, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows:R—[(OR)—OR]  (1) and the base oil is at least one compound selected from a group consisting of polyvinyl ether, polyalkylene glycol and an ether-base compound represented by a formula (2) as follows,R-[(OR)-(X)—(OR)-R  (2)where meanings of respective signs are as described in the specification.