Petroleum oil having improved cold flow properties

Details Petroleum oil having improved cold flow properties Petroleum oil having improved cold flow properties

C - Chemistry, Metallurgy

09

K

44/19, 196/68

C09K 3/00 (2006.01) C08F 210/02 (2006.01) C10L 1/197 (2006.01) C10M 145/08 (2006.01)

Patent

CA 1116546

ABSTRACT OF THE DISCLOSURE The cold flow properties of petroleum oils, especially crude oils, are improved by the addition of a special copolymer of ethylene and vinyl acetate. The special copolymer contains 22 to 36% by weight of vinyl acetate, has a melt flow index of 50 to 1000 and it contains less than 14 pendant methyl groups per 1000 carbon atoms of the copolymer. It has been found that the special copolymers are more effective than similar ethylene/vinyl acetate copolymers.

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