Lubricants for refrigeration systems

Lubricants for refrigeration systems

  • CN 102,216,438 A
  • Filed: 10/13/2009
  • Published: 10/12/2011
  • Est. Priority Date: 11/13/2008
  • Status: Active Application
First Claim
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1. be suitable as the polyol ester of lubricant or lubricant base, the reaction product that described ester has 40 ℃

  • of kinematic viscosity being less than or equal to 22cSt and comprises following component more than or equal to 140 viscosity index and described ester;

    (a) at least a polyvalent alcohol with at least 2 primary hydroxyls, (b) monocarboxylic acid of at least a 2-15 of a having carbon atom and (c) at least a polycarboxylic acid, the number that wherein is derived from the acidic group of described one or more polycarboxylic acids with 2-15 carbon atom be derived from described monocarboxylic acid and polycarboxylic acid acidic group sum at least 25%.

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