Refrigerant lubricant compositions

Claim 2

An antiwear additive composition for refrigerant lubricants comprising: at least one member selected from the group consisting of (i) an ethoxylated phosphate ester, (ii) a phosphate alcohol, (iii) a zinc dialkyldithiophosphate, (iv) mercaptobenzothiazole and (v) 2,5-dimercapto-1,3,4-thiadiazole; a propoxylated amine; and a tolyltriazole.

Claim 3

An antiwear additive as claimed in claim 1 wherein said amine is ##STR2##

Claim 4

An antiwear additive composition as claimed in claim 1 wherein said ethoxylated phosphate ester is water soluble.

Claim 5

An antiwear additive composition as claimed in claim 3 wherein said ethoxylated phosphate ester is a polyoxyethylene phenyl ether phosphate.

Claim 6

A refrigerant lubricant composition comprising: at least one polyoxyalkylene glycol which is mono-functional with respect to hydroxyl groups and based on 25% to 75% ethylene oxide and 75% to 25% propylene oxide, having an SUS viscosity at 100° F. of 100 to 1200; and an effective amount of an antiwear additive sufficient to provide antiwear properties to said refrigerant lubricant composition comprising at least one member selected from the group consisting of (i) an ethoxylated phosphate ester, (ii) a phosphate alcohol, (iii) a zinc dialkyldithiophosphate, (iv) mercaptobenzothiazole and (v) a 2,5-dimercapto-1,3,4-thiadiazole propoxylated amine and a tolytriazole.

Claim 7

A refrigerant lubricant composition comprising: at least one polyoxyalkylene glycol which is mono-functional with respect to hydroxyl groups and based on 25% to 75% ethylene oxide and 75% to 25% propylene oxide, having an SUS viscosity at 100° F. of 100 to 1200; and an effective amount of an antiwear additive sufficient to provide antiwear properties to said refrigerant lubricant composition comprising at least one member selected from the group consisting of (i) an ethoxylated phosphate ester, (ii) a phosphate alcohol, (iii) a zinc dialkyldithiophosphate, (iv) mercaptobenzothiazole and (v) a 2,5-dimercapto-1,3,4-thiadiazole propoxylated amine and a tolytriazole.

Claim 8

A refrigerant lubricant composition as claimed in claim 5 wherein said amine is ##STR3##

Claim 9

A refrigerant lubricant composition as claimed in claim 5 comprising from about 0.1 to 2.0% by weight of said antiwear additive.

Claim 10

A refrigerant lubricant composition as claimed in claim 5 comprising from about 0.5 to 2 parts of said amine per part of said antiwear additive.

Claim 11

A refrigerant lubricant composition as claimed in claim 5 comprising from about 0.01 to 0.1% by weight of said tolyltriazole.

Claim 12

A refrigerant lubricant composition as claimed in claim 5 comprising about 2 parts by weight of said antiwear additive and about 3 parts by weight of said amine per one part by weight of said tolyltriazole.

Claim 13

A refrigerant lubricant composition according to claim 5 wherein said polyalkyleneoxy lubricant is based on 40% to 60% ethylene oxide and 60% to 40% to propylene oxide.

Claim 14

A refrigerant composition comprising: (a) a refrigerant comprising at least one compound selected from the group consisting of tetrafluoroethane and pentafluoroethane; (b) a polyoxyalkylene glycol; (c) an antiwear additive comprising at least one member selected from the group consisting of (i) an ethoxylated phosphate ester, (ii) a phosphate alcohol, (iii) a zinc dialkyldithiophosphate, (iv) mercaptobenzothiazole and (v) 2,5-dimercapto-1,3-4-thiadiazole; and (d) a tolyltriazole.

Claim 15

A refrigerant composition comprising: (a) a refrigerant comprising at least one compound selected from the group consisting of tetrafluoroethane and pentafluoroethane; (b) a polyoxyalkylene glycol; (c) an antiwear additive comprising at least one member selected from the group consisting of (i) an ethoxylated phosphate ester, (ii) a phosphate alcohol, (iii) a zinc dialkyldithiophosphate, (iv) mercaptobenzothiazole and (v) 2,5-dimercapto-1,3-4-thiadiazole; and (d) a tolyltriazole.

Claim 16

A refrigerant composition as claimed in claim 12 wherein said polyoxyalkylene glycol is monofunctional with respect to hydroxyl groups and based on 25% to 75% ethylene oxide and 75% to 25% propylene oxide, having an SUS viscosity at 100° F. of 100 to 1200.

Claim 17

A refrigerant composition as claimed in claim 12 wherein said polyoxyalkylene glycol is polyfunctional with respect to hydroxyl groups.

Claim 18

A refrigerant composition as claimed in claim 12 wherein said polyoxyalkylene glycol is capped.

Claim 19

A refrigerant composition as claimed in claim 12 further comprising a propoxylated amine.

Claim 20

A refrigerant lubricant composition as claimed in claim 16 wherein said amine is ##STR4##

Claim 21

A refrigerant composition as claimed in claim 12 wherein comprises from about 10 to 50% by volume of said polyoxyalkylene glycol.

Claim 22

A refrigerant composition as claimed in claim 18 which comprises from about 10 to 20% by volume of said polyoxyalkylene glycol.

Claim 23

An antiwear additive composition for refrigerant lubricants comprising: (i) a polyoxyethylene phenyl ether phosphate; (ii) an amine having the following structure ##STR5## (iii) a tolyltriazole.

Claim 24

An antiwear additive composition for refrigerant lubricants comprising: (i) a polyoxyethylene phenyl ether phosphate; (ii) an amine having the following structure ##STR5## (iii) a tolyltriazole.