| 发明名称 |
ETHYLENE COPOLYMERS THAT CAN BE MOULDED AND/OR INJECTED, AND PROCESS FOR THEIR PRODUCTION |
| 摘要 |
<p>A copolymer based on ethylene and propylene, having a density of between 0.933 and 0.946 g/cm3 and a melt index of between 2 and 10 dg/min, wherein the copolymer has from 3 to 27 alkyl groups per 1000 carbon atoms in the molecule and wherein its density rho and its proportion m of alkyl groups in the molecule satisfy the relationship 0.948</= rho +0.71 m</=0.9525. The copolymer is produced by feeding a flux comprising from 80 to 95% by weight of ethylene and from 5 to 20% by weight of propylene into at least one reactor in stationary operation, the reactor having at least one reaction zone; and copolymerizing the ethylene and propylene in the reactor at a pressure of from 300 to 2500 bar and a temperature of from 180 DEG to 320 DEG C. in the presence of a Ziegler type catalyst system.</p> |
| 申请公布号 |
EP0041423(B1) |
申请公布日期 |
1985.10.02 |
| 申请号 |
EP19810400749 |
申请日期 |
1981.05.12 |
| 申请人 |
SOCIETE CHIMIQUE DES CHARBONNAGES |
发明人 |
RAVIOLA, FLORENT |
| 分类号 |
C08F2/00;C08F2/02;C08F2/34;C08F4/00;C08F4/60;C08F4/62;C08F210/00;C08F210/16;(IPC1-7):C08F210/16 |
主分类号 |
C08F2/00 |
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