公开(公告)号：US3567639A

公开(公告)日：1971-03-02

申请号：US3567639D

申请日：1967-05-08

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： AARON COLIN ,  EDWARDS ALAN HAROLD ,  TESSIER KEITH CAMPBELL

IPC: C08L31/04 ,  C08L91/00 ,  C10L1/16 ,  C10L1/18 ,  C10L1/197 ,  C10L1/20 ,  C10L1/22 ,  C10M1/28

CPC classification number: C10L1/1973 ,  C08L31/04 ,  C08L91/00 ,  C10L1/1641 ,  C10L1/165 ,  C10L1/195 ,  C10L1/207 ,  C10L1/236 ,  C08L2666/02

Abstract: A POUR POINT DEPRESSANT FOR CRUDE OIL, SHALE OIL OR A FUEL OIL WHICH COMPRISES 35-100 WT. PERCENT OF RESIDUA FROM THE DISTILLATION OF CRUDE OR SHALE OIL IS DISCOLOSED. THE POUR POINT DEPRESSANT IS A COPOLYMER OF EHTYLENE AND A VINYL OR C1 TO C30 HYDROCARBYL SUBSTITUTED VINYL ESTER OF A C1 TO C30 SATURATED ALIPHATIC MONOCARBOXYLIC ACID, SAID COPOLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF ABOUT 4,000 TO 60,000 AND CONTAINING ABOUT 40 TO 95 WT. PERCENT ETHYLENE.