Styrene-dialkyl maleate copolymers as dewaxing agents

Details Styrene-dialkyl maleate copolymers as dewaxing agents Styrene-dialkyl maleate copolymers as dewaxing agents

C - Chemistry, Metallurgy

10

G

196/255

C10G 21/16 (2006.01) C10G 73/04 (2006.01)

Patent

CA 1254530

ABSTRACT OF THE DISCLOSURE A solvent dewaxing process for dewaxing waxy lubricating oil with a dewaxing solvent and a dewaxing aid which comprises using as the dewaxing aid a styrene dialkyl maleate copolymer wherein the side chain groups contain from C16 - C24 + carbon atoms. These polymers are further characterized as having a molecular weight within the range of 10,000 - 150,000.

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