Process for preparation and purification of material of a cycloolefin copolymer
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United States of America Patent
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Mar 12, 1996
Grant Date -
N/A
app pub date -
Feb 14, 1994
filing date -
Feb 12, 1993
priority date (Note) -
Expired
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Abstract
A material of a cycloolefin copolymer has a structure of alternating cycloolefin sequences, and has crystallinity in a temperature range from 210.degree. to 320.degree. C. The cycloolefin is prepared by polymerization of at least one polycyclic olefin, monocyclic and/or acyclic olefin with an open-chain olefin using a catalyst of a metallocene and an aluminoxane.
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