Process for preparing an ethylenic copolymer

Details Process for preparing an ethylenic copolymer Process for preparing an ethylenic copolymer

1995-06-06

1996-10-15

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526153, 526160, 526170, 526943, 502155, C08F 204

Patent

active

055655335

ABSTRACT:
A process for the preparation of an ethylene/1-butene or ethylene/1-butene/diene elastomer by slurry polymerization of the monomers in a polymerization medium consisting mainly of an excess of the 1-butene maintained in liquid form, performed in the presence of a catalyst based on a metallocene compound of Ti, Zr or Hf. This process is exempt from occurrence of reactor fouling and enables the recovery of the polymer without the use of steam as a stripping agent.

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patent: 5229478 (1993-07-01), Floyd et al.
Ewen J., J. Am. Chem. Soc., 1987, 109, 6544-45 and Supplementary Material.
F. R. W. P. Wild, M. Wasiucionek, G. Huttner and H. H. Brintzinger, J. Organomet. Chem. 288, 1985, 63-67.
W. A. Hermann et al., Angew. Chem. Int. Ed. Engl. 1989, 28, 1511-12.
Organometallics, 1990, 9, 3098-3105.

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