JP2018165369A5

JP2018165369A5 -

Info

Publication number: JP2018165369A5
Application number: JP2018115440A
Authority: JP
Filing date: 2018-06-18
Publication date: 2019-03-07

Claims

The following general formula (I)
C ₂ F _p R _4-p (I)
[In formula, R shows a hydrogen atom, a chlorine atom, a bromine atom, or a sulfur atom each independently, and p is an integer of 1-3. ]
A refrigerating machine oil composition used for a refrigerant containing an unsaturated fluoride compound having a carbon-carbon unsaturated bond represented by:
It is composed of one or more selected from polyalkylene glycols, and has a kinematic viscosity at 100 ° C. of 2.00 to 25.00 mm ² / s and a hydroxyl value of 5.0 mgKOH / g or less , or poly ( Oxy) alkylene glycol or a copolymer of its monoether and polyvinyl ether, and one or more selected from polyol esters, and a kinematic viscosity at 100 ° C. of 2.00 to 50.00 mm ² / s, A refrigerating machine oil composition comprising a base oil (P) having a hydroxyl value of 5.0 mgKOH / g or less .

The refrigerating machine oil composition according to claim 1, wherein the polyalkylene glycol is a polymer represented by the following general formula (B-1).
R ^1b -[(OR ^2b ) _m -OR ^3b ] _n (B-1)
(In the formula (B-1), R ^1b is a hydrogen atom, a monovalent hydrocarbon group having 1 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms, or a 2 to 6 valent carbon group having 1 to 10 carbon atoms. R ^2b represents a hydrocarbon group or a substituted or unsubstituted heterocyclic group having 3 to 10 ring atoms, R ^2b represents an alkylene group having 2 to 4 carbon atoms, R ^3b represents a hydrogen atom, 1 to carbon atoms. 10 represents a monovalent hydrocarbon group, an acyl group having 2 to 10 carbon atoms, or a substituted or unsubstituted heterocyclic group having 3 to 10 ring atoms, n is an integer of 1 to 6, m Represents a number of 1 or more.)

  The copolymer (C) of the poly (oxy) alkylene glycol or its monoether and polyvinyl ether is a copolymer represented by the following general formula (C-1) or (C-2). 2. The refrigerator oil composition according to 1.

(In the above formulas (C-1) and (C-2), R ^１ｃ1c , R ^２ｃ2c And R ^３ｃ3c Each independently represents a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms. R ^４ｃ4c Each independently represents a hydrocarbon group having 1 to 10 carbon atoms. R ^５ｃ5c Each independently represents an alkylene group having 2 to 4 carbon atoms. R ^６ｃ6c Are each independently an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alicyclic group having 3 to 20 ring carbon atoms, and a substituted or unsubstituted aromatic group having 6 to 24 ring carbon atoms. , An acyl group having 2 to 20 carbon atoms, or an oxygen-containing hydrocarbon group having 2 to 50 carbon atoms. R ^１ｃ1c , R ^２ｃ2c , R ^３ｃ3c , R ^４ｃ4c , R ^５ｃ5c And R ^６ｃ6c When there is a plurality, each may be the same for each structural unit or different.
  X ^ＣC And Y ^ＣC Each independently represents a hydrogen atom, a hydroxyl group, or a hydrocarbon group having 1 to 20 carbon atoms.
  v represents a number of 1 or more, u represents a number of 0 or more, and w represents a number of 1 or more. x and y each independently represents a number of 1 or more. )

The refrigerating machine oil composition according to claim 1, wherein the polyol ester is an ester of a diol or a polyol having 3 to 20 hydroxyl groups and a fatty acid having 3 to 20 carbon atoms.

The refrigerating machine oil composition according to any one of claims 1 to 4, wherein the volume resistivity of the base oil (P) is 0.01 (TΩ · m) or more.

The refrigerator oil composition according to any one of claims 1 to 5 , wherein the surface tension of the base oil (P) is 0.02 to 0.04 (N / m).

An antioxidant, an extreme pressure agent, an acid scavenger, an oxygen scavenger, a metal deactivator, a rust inhibitor, an oil agent, and one or more additives selected from the group consisting of an antifoaming agent. The refrigerator oil composition according to any one of 1 to 6 .

The refrigerating machine oil composition according to any one of claims 1 to 7 , wherein the refrigerant is a mixed refrigerant further containing hydrofluorocarbon.

The refrigerator oil composition according to any one of claims 1 to 8 , and the following general formula (I):
C ₂ F _p R _4-p (I)
[In formula, R shows a hydrogen atom, a chlorine atom, a bromine atom, or a sulfur atom each independently, and p is an integer of 1-3. ]
And a refrigerant containing an unsaturated fluorinated compound having a carbon-carbon unsaturated bond represented by:

The refrigeration apparatus according to claim 9 , wherein the refrigeration apparatus is an air conditioner, a gas heat pump, an air conditioner, a refrigerator, a vending machine, a showcase, a water heater, or a floor heater.