Process for producing a norbornene polymer

Details Process for producing a norbornene polymer Process for producing a norbornene polymer

1993-04-30

1994-09-06

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526171, 526283, C08F 442, C08F 480, C08F13200

Patent

active

053449002

ABSTRACT:
A process for producing a norbornene polymer consisting essentially of a repeating unit of the formula (I) ##STR1## wherein R.sup.1 to R.sup.12 are the same or different and are hydrogen, C.sub.1 -C.sub.20 hydrocarbon, or a group having a halogen, oxygen or nitrogen, R.sup.5 and R.sup.7 may combine to form a ring, and n is an integer of 0 or more; and having a weight average molecular weight as determined by GPC of 1.times.10.sup.5 to 1.times.10.sup.7. The process comprises polymerizing a norbornene monomer of the formula (II) ##STR2## wherein R.sup.1 to R.sup.12 are the same or different and are independently hydrogen, C.sub.1 -C.sub.20 hydrocarbon, or a substituent containing a halogen atom, an oxygen atom or a nitrogen atom; R.sup.5 and R.sup.7 may combine together to form a ring; and n is an integer of 0 or more, in the presence of a catalyst containing a transition metal compound component containing a transition metal belonging to Group VB, VIB, VIIB or VIII of the Periodic Table, and an aluminoxane components.

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Database WPIL, accession No. 86-300754 [46]. Derwent Publications Ltd., London, GB; & JP 61 221 206.
Derwent Abstract vol. 11, No. 60 (C-405)(2507) Feb. 24, 1987; abstract of JP 61-221206.
Gaylord et al, "Poly-2,3-and 2,7-Bicyclo[2.2.1]hept-2-enes: Preparation and structures of Polynorbornenes", J.Macromol, Sci.-Chem.,All(5), pp. 1053-1070 (1977).

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