Process for preparing elastomeric EP(D)M copolymers

Details Process for preparing elastomeric EP(D)M copolymers Process for preparing elastomeric EP(D)M copolymers

1997-04-30

2000-09-26

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526132, 502155, C08F 442

Patent

active

061244139

ABSTRACT:
Process for preparing elastomeric copolymers of ethylene-propylene (EPM) type and elastomeric terpolymers of ethylene-propylene-diene (EPDM) type with a propylene content comprised within the range of from 15 to 75%, carried out in the presence of metallocenes of formula (I) ##STR1##

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Taek Kyu Han, et al., American Chemical Society, vol. 28, No. 14, 1995, Ethylene and Propylene Polymerization over Chiral ansa-Dichloro[O-phenylenedimethylenebis(N5-1-indenyl)]zirconium [Zr{C6H4(CH2-1-C9H6)2-1,2}C12].
The Condensed Chemical Dictionary, 9th Ed., Van Nostrand Reinhold Co. N.Y. (1997) p. 552.

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