Hydrogenated copolymers of conjugated dienes and when...

Details Hydrogenated copolymers of conjugated dienes and when... Hydrogenated copolymers of conjugated dienes and when...

C - Chemistry, Metallurgy

10

M

253/107, 253/128

C10M 1/18 (1980.01)

Patent

CA 1087343

ABSTRACT OF THE DISCLOSURE A hydrogenated copolymer produced by copolymerization of from about 1 to about 10 mol. percent butadiene and at least one other C5 to C12 conjugated diene, and, if desired, in order to provide a block copolymer, up to 45 mol. percent of a vinyl aromatic monomer, upon addition to lubricating oils containing a pour point depressing amount of an oil-soluble polymeric pour depressant, pro-vides viscosity modification, oxidative and shear stability with excellent low temperature viscometric properties.

292580

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