公开(公告)号：US3896074A

公开(公告)日：1975-07-22

申请号：US42221873

申请日：1973-12-06

Applicant: TEXACO INC

Inventor： YAMAMOTO ROY ISAMU ,  SAINES GEORGE S

IPC: C08F220/18 ,  C10L1/196 ,  C08F15/16

CPC classification number: C10L1/1963 ,  C08F220/18

Abstract: An interpolymer of an n-alkylacrylate mixture and an nalkanediol dimethacrylate of from 10 to 18 carbons, said interpolymer having a weight ratio of said n-alkylacrylate mixture to said alkanediol dimethacrylate of between about 99.5: 0.5 to 95:5 and a molecular weight between about 3000 and 100,000 and wherein the alkyl in said n-alkyl mix is of at least 18 carbons and at least 70 wt. % of said alkyl is between 20 and 24 carbons inclusively, the C20 to C24 alkyl group consisting of between about 2 and 65 wt. % of C20 alkyl, between about 18 and 65 wt. % C22 alkyl and between about 8 and 35 wt. % C24 alkyl; and a waxy heavy petroleum fraction containing between 4 and 15 wt. % macrocrystalline paraffin wax having incorporated therein a pour depressing amount of said interpolymer wherein said interpolymer is initially introduced in the waxy heavy petroleum fraction at a temperature above the solution point of the macrocrystalline wax component therein.