Process for making ethylene interpolymers and interpolymers made thereby, compositions and electrical devices containing such interpolymers

Process for making ethylene interpolymers and interpolymers made thereby, compositions and electrical devices containing such interpolymers

  • CN 101,001,893 A
  • Filed: 03/21/2005
  • Published: 07/18/2007
  • Est. Priority Date: 03/24/2004
  • Status: Active Application
First Claim
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1. prepare the continuous polymerization method of the random copolymer of ethene and propylene and/or 1-butylene, this method comprises:

  • (A) under successive random polymerization condition, having the shielding center charge in employing carries in the presence of the single-site catalyst systems of ion activation agent of ring-type part of atom, under 140 ℃

    to 250 ℃

    temperature, under conversion of ethylene 80 to 99% and at least 20% the comonomer transformation efficiency, polymerising ethylene and as the propylene of alpha-olefin comonomer and/or 1-butylene and(B), have 0.85 to 0.92g/cm to provide with devolatilizing polymers 3Density, 0.01 to 100g/10min, preferred 0.1 to 20g/10min MI and 30 to 400 I 21/ I 2Ethylene copolymer.

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