Title:
LUBRICATING OIL FOR REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/1993/013185
Kind Code:
A1
Abstract:
A lubricating oil for a refrigerator using a chlorofluorocarbon substitute as the refrigerant, which contains a polymer of a fumaric ester or a copolymer of a fumaric ester with a copolymerizable alkylene and, if desired, an organic carboxylic ester or a polyalkylene glycol with a kinematic viscosity of 2 to 30 cSt. The oil is compatible with a refrigerant comprising a chloroflurocarbon substitute such as a hydrochlorofluorocarbon, in particular, R134a in a wide temperature range, has a high viscosity index, is thermally and chemically stable, and has an excellent lubricity.
Inventors:
SATO TAKEHISA (JP)
UEDA HIRONARI (JP)
KURIBAYASHI TOSHIAKI (JP)
ASANO SATOSHI (JP)
NIWA TADASHI (JP)
UENO HIROSHI (JP)
UEDA HIRONARI (JP)
KURIBAYASHI TOSHIAKI (JP)
ASANO SATOSHI (JP)
NIWA TADASHI (JP)
UENO HIROSHI (JP)
Application Number:
PCT/JP1992/001707
Publication Date:
July 08, 1993
Filing Date:
December 25, 1992
Export Citation:
Assignee:
TONEN CORP (JP)
International Classes:
C09K5/04; C10M107/28; C10M145/16; C10M171/00; (IPC1-7): C08F222/14; C10M107/28; C10M145/16; C10N20/02; C10N30/02; C10N40/30
Foreign References:
| JPH03172391A | 1991-07-25 | |||
| JPH02502385A | 1990-08-02 | |||
| JPH03205492A | 1991-09-06 |
Other References:
See also references of EP 0586705A4
ACTA POLYMERICA, vol. 39, no. 1, 1988, pages 5 - 8
ACTA POLYMERICA, vol. 39, no. 1, 1988, pages 5 - 8
Attorney, Agent or Firm:
Matsui, Mitsuo (17-7 Nishishinbashi 1-chom, Minato-ku Tokyo 105, JP)
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