C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
253/66, 260/458.
C07F 9/40 (2006.01) C10M 105/74 (2006.01) C10M 137/02 (2006.01) C10M 171/00 (2006.01)
Patent
CA 2009484
L-2440R Title: CARBOXYLIC ESTERS, LIQUID COMPOSITIONS CONTAIN- ING SAID CARBOXYLIC ESTERS AND METHODS OF LUBRICATING METAL PARTS Abstract of the Disclosure Phosphorus-containing compositions and carboxyl- ic ester compositions are described. The esters are useful as synthetic lubes and as lubricants in liquid compositions containing fluorine-containing hydrocar- bons. A liquid composition also is described comprising (A) a major amount of a fluorine containing hydrocarbon containing one or two carbon atoms, and (B) a minor amount of a soluble organic lubri- cant comprising at least one carboxylic ester character- ized by the formulae Image (I) Image (IIIA) Image (IIIB) and (IIIC) Image wherein R* is a hydrocarbylene group or a hydrocarbyl- ene group substituted with a -P(O)(OR3)2 group; Z is -COOR1, -C(O)NR4R5, -C(O)(OR6)yN(R4)C(O)R7, C(O)(OR6)yOC(O)R7, -CN, -CHO, or -C(O)R7; R° is an alkylene group; R1 is a hydrocarbyl group or a hydrocarbyloxy hydrocarbyl group and R1 may be the same as R3; R3 is independently a hydrocarbyl group; R4 and R5 are each independently H or hydro- carbyl groups; R6 is a hydrocarbylene group; R7 is a hydrocarbyl group; y is an integer from 1 to about 20; R10 is independently H or a hydrocarbyl group; R11 is H, or -COOR1; and n is an integer from 2 to about 6, provided that in Formula I, at least one of Z or R11 is a -COOR1 group, and when both Z and R11 are -COOR1, R* is a hydrocarbylene group substituted with a -P(O)(OR3)2 group. The liquid compositions of the invention are useful particularly as refrigeration liquids in refrigerators and air-conditioners including auto, home and industrial air-conditioners.
Jolley Scott T.
Lange Richard M.
Salomon Mary F.
Ridout & Maybee Llp
The Lubrizol Corporation
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