Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-10-15
1993-09-14
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526127, 526142, 526160, 526352, 526905, 502102, 502152, 502153, C08F 454
Patent
active
052449912
ABSTRACT:
A process for polymerizing olefins is disclosed which makes use of a catalyst comprising a cyclopentadienyl yttrium halide alkali metal electron donor complex in combination with a cocatalyst comprising an alkali or alkaline earth metal alkyl. Preferred embodiments include the use of hydrogen during the polymerization.
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patent: 5066739 (1991-11-01), Pettijohn et al.
patent: 5109085 (1992-04-01), Pettijohn et al.
J. Am. Chem. Soc. 109, 203-219 (1987).
Tilley et al., Inorg. Chem., 20, 3267-3270 (1981).
Watson et al., Inorg. Chem., 20, 3271-3278 (1981).
Bowman Edward L.
Phillips Petroleum Company
Teskin Fred
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