Ester functional organopolysiloxane lubricants and process

An ester functional organopolysiloxane lubricant composition having the general formula:

• (CH.sub.3).sub.3 SiO[R.sub.2 SiO].sub.x [(Q)SiR].sub.y [R'SiO.sub.1.5 ].sub.z Si(CH.sub.3).sub.3
• where R and R' are selected from the group consisting of monovalent hydrocarbon radicals, halogenated monovalent hydrocarbon radicals and cyanoalkyl radicals, x has a value of from 0 to about 110, y has a value of from about 1 to 100, z has a value of from about 0.8 to about 5, and Q is an ester radical represented by the general formula:
• --CH.sub.2 --CH.sub.2 --(CH.sub.2).sub.p --C(O)O--V
• where the alkyl portion of the ester radical which bonds the C(O)O group to the organopolysiloxane chain comprises a straight chain or branched chain, said branched chain having alkyl or aryl radicals attached thereto, p has a value of from 1 to about 30 and V is selected from the group consisting of
• --(CH.sub.2).sub.q --(OCH.sub.2 CH.sub.2).sub.r --O--CH.sub.3 (a)
• where r has a value of from 1 to about 10,
• --(CH.sub.2).sub.q --O--CH.sub.3, (b)
• --CH.sub.3, (c)
• --(CH.sub.2).sub.q --CH.sub.3, (d)
• where the alkyl group modified by q in the above ester radical comprises a straight chain or a branched chain, said branched chain having an alkoxy group attached thereto, and where q has a value of from 1 to about 10,
• --(CH.sub.2 --CH.sub.2 --O).sub.s --H (e)
• where s has a value of from 1 to about 30, and
• --(CH.sub.2 --CH.sub.2 --O).sub.t --(CH.sub.2 (CH.sub.3)C(H)O).sub.u H (f)
• where t and u have a value of from 1 to about 20.