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Title:
LUBRICANTS FOR REFRIGERATION SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2010/056449
Kind Code:
A3
Abstract:
A polyol ester suitable for use as a lubricant or a lubricant base stock has a kinematic viscosity at 40°C less than or equal to 22 cSt and a viscosity index of greater than or equal to 140. The ester comprises a reaction product of (a) at least one polyhydric alcohol having at least 2 primary hydroxyl groups, (b) at least one monocarboxylic acid having 2 to 15 carbon atoms and (c) at least one polycarboxylic acid having 2 to 15 carbon atoms, wherein the number of acid groups derived from the polycarboxylic acid(s) is at least 25 % of the total number of acid groups derived from the monocarboxylic and polycarboxylic acids.

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Inventors:
HESSELL ED (US)
KELLEY RICHARD (US)
CARR DALE (US)
HUTTER JEFFREY (US)
Application Number:
PCT/US2009/060451
Publication Date:
April 07, 2011
Filing Date:
October 13, 2009
Export Citation:
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Assignee:
CHEMTURA CORP (US)
HESSELL ED (US)
KELLEY RICHARD (US)
CARR DALE (US)
HUTTER JEFFREY (US)
International Classes:
C10M105/44; C10M171/00; C10N20/02; C10N30/06; C10N40/30
Domestic Patent References:
WO1998046706A11998-10-22
Foreign References:
US5096606A1992-03-17
EP0406479A11991-01-09
JPH0641559A1994-02-15
Other References:
DATABASE WPI Week 200474, Derwent World Patents Index; AN 2004-757748, XP002574342
Attorney, Agent or Firm:
SHER, Jaimes (199 Benson RoadMiddlebury, CT, US)
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