发明名称 |
ONE-STEP PROCESS FOR THE PREPARATION OF ALKENYL SUCCINIC ANHYDRIDE |
摘要 |
2119010 9402523 PCTABS00030 A process for the preparation of an alkenyl-substituted succinic anhydride wherein the alkenyl substituent has a number average molecular weight of from about 500 to 5000 and the average number of succinic groups per alkenyl group is greater than 1.2 which comprises reacting a polyolefin having an alkylvinylidene isomer content of less than about 10 percent and a number average molecular weight of about 500 to 5000 with maleic anhydride in the presence of a free radical initiator at a temperature in the range of about 80 ·C to 200 ·C for a period of less than 20 hours, wherein the molar ratio of maleic anhydride to polyolefin is about 1.0:1 to 9:1, and wherein the half-life of the decomposition of the free radical initiator is about 5 minutes to 10 hours at the reaction temperature.
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申请公布号 |
CA2119010(A1) |
申请公布日期 |
1994.02.03 |
申请号 |
CA19932119010 |
申请日期 |
1993.07.23 |
申请人 |
CHEVRON RES & TECH |
发明人 |
RUHE WILLIAM R JR;HARRISON JAMES J |
分类号 |
C08F8/46;C08F10/00;C08F210/16;C08F255/02;C08F255/10;(IPC1-7):C08F255/00 |
主分类号 |
C08F8/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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