Functional fluids and concentrates containing associative...

Details Functional fluids and concentrates containing associative... Functional fluids and concentrates containing associative...

C - Chemistry, Metallurgy

10

M

253/133, 253/136

C10M 173/02 (2006.01) C10M 137/10 (2006.01)

Patent

CA 1251776

ABSTRACT OF THE DISCLOSURE: A functional fluid concentrate comprises: (a) a cloud point raising metal dialkyldithiophosphate additive having the following structural formula: Image wherein R1, R2, R3, and R4 are individually linear or branched alkyl, alkenyl, aryl, arylalkyl and alkylaryl groups having from 1 to 24 carbon atoms; and M is selected from the group consisting of Zn, Sb, Sn, Mg, and Mn; (b) a polyether nonionic surfactant; and (c) an associative polyether thickener. Preferably the concentrate also contains a linear or branched alkanolamine having 2 to 10 carbon atoms. Functional fluids, prepared by mixing the concentrates with water, can be used in hydraulic systems or as metalworking compositions to cool and lubricate surfaces which are in frictional contact during operations such as the turning, cutting, peeling, or grinding of metals.

470413

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