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公开(公告)号：US3693720A
公开(公告)日：1972-09-26
申请号：US3693720D
申请日：1971-01-29
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： MCDOUGALL LEE A , ROSSI ALBERT , WISOTSKY MAX J
CPC classification number: C09K8/524 , Y10S507/931 , Y10S585/95
Abstract: The recovery of crude oil may be improved by inhibiting deposition of wax from the oil. Wax deposition may be inhibited by adding to the oil a polymer having pendant polar and non-polar moieties, such as a partially hydrolyzed ethylene-vinyl acetate copolymer.
Abstract translation: 原油的回收可以通过抑制蜡从油中沉积而得到改善。 通过向油中加入具有侧极性和非极性部分的聚合物（例如部分水解的乙烯 - 乙酸乙烯酯共聚物）可以抑制蜡沉积。
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2.发明授权Copolymer of c' 3 'to c' 8 'alpha-olefin and c' 22 'to c' 40 'alpha-olefin 失效C'3'至C'8'丙氧基和C'22'至C'40'丙氧基的共聚物
公开(公告)号：US3876722A
公开(公告)日：1975-04-08
申请号：US16786671
申请日：1971-07-30
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： ROSSI ALBERT , JACOBSON NORMAN , MILLER HAROLD N
IPC: C07C2/30 , C08F210/04 , C08F210/06 , C08F210/08 , C08F210/14 , C10L1/16 , C07C3/10
CPC classification number: C07C2/30 , C07C2531/12 , C08F210/04 , C08F210/06 , C08F210/08 , C08F210/14 , C10L1/1633 , C10L1/1641 , C10L1/165 , C10L1/1666
Abstract: Hydrocarbon polymers comprising linear C.sub.18.sub.+ alkyl side chains are added to residual fuels to improve their pour point and flow characteristics. These polymers are prepared by polymerizing C.sub.20 -C.sub.40 alpha-olefins in the presence of a Ziegler-type catalyst to a number average molecular weight within the range between about 500 and 125,000. Particularly effective polymers are prepared from C.sub.3 -C.sub.18 alphaolefins and C.sub.20 -C.sub.40 alpha-olefins.
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3.发明授权Petroleum crude oils containing polymers comprised of c' 18'+14 c' 40 'alpha-olefins have reduced tendency to deposit wax 失效含有C'18'+ 14 C'40'ALPHA-OLEFIN的聚合物的石油焦油具有降低沉积物的倾向
公开(公告)号：US3926579A
公开(公告)日：1975-12-16
申请号：US34442873
申请日：1973-03-23
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： ROSSI ALBERT , JACOBSON NORMAN , MILLER HAROLD N
IPC: C08F210/00 , C09K8/524 , C10L1/16
CPC classification number: C08F210/00 , C09K8/524 , C10L1/1641 , Y10S507/931 , Y10S585/95
Abstract: Paraffin deposition in flow systems handling petroleum crude oil is substantially reduced or inhibited by blending the crude oil with a polymer comprised of 20 to 100 wt. % of a C18-C40 alphaolefin and 0 to 80 wt. % of a C3-C16 alpha-olefin. The polymers have a number average molecular weight within the range between about 500 and 125,000 and are preferably copolymers containing 4 to 50 wt. % of a C3-C8 alpha-olefin and 50 to 96 wt. % of a C20C28 alpha-olefin.
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