Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Heterocyclic ring compound; a heterocyclic ring is one...
Reexamination Certificate
2005-04-05
2005-04-05
Wood, Elizabeth D. (Department: 1755)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Heterocyclic ring compound; a heterocyclic ring is one...
C508S251000, C508S579000, C252S068000
Reexamination Certificate
active
06875730
ABSTRACT:
A lubricant for a refrigerator using ammonia as the refrigerant, which contains an additive selected from antioxidant, anti-wear additive and metal deactivator, and the polyether compound represented by the following general formula (1) or (2):in-line-formulae description="In-line Formulae" end="lead"?X{—O—(AO)n—H}p (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?X{—O—(AO1)a—(AO2)b—H}p (2)in-line-formulae description="In-line Formulae" end="tail"?
REFERENCES:
patent: 5651257 (1997-07-01), Kasahara et al.
patent: 5688433 (1997-11-01), Kasahara et al.
patent: 6656891 (2003-12-01), Sakanoue et al.
Kaimai Takashi
Namiwa Kimiyoshi
Saneyoshi Ayako
Takahashi Hitoshi
Yamamoto Goro
Asahi Denka Kogyo K.K.
Japan Energy Corporation
Sughrue & Mion, PLLC
Wood Elizabeth D.
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