Isomerization of cycloolefin from endo-form to exo-form and copolymerization of cycloolefin and ethylene
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsToshihiro Sagane, Hideaki Yamaguchi, Shuji Minami, Akira Mizuno, Hiroo Wamura
Life of this patent
Estimating the term…
Abstract
This invention is to provide a novel process for the isomerization of a cycloolefin having an endo form to a cycloolefin having an exo form. The resulting isomer mixture has a novel composition, and a random copolymer produced from the above compositionally novel isomer mixture and ethylene has an excellent heat resistance and mechanical strength.
Claims4
An isomer mixture of a cycloolefin of the formula (I) ##STR33## wherein R.sup.1 to R.sup.14 are independently a hydrogen atom, a halogen atom or a hydrocarbon group, R.sup.15 to R.sup.18 are independently a hydrogen atom, a halogen atom or a hydrocarbon group, or R.sup.15 or R.sup.16 and R.sup.17 or R.sup.18 may be bonded to each other to form a monocyclic or polycyclic group, or R.sup.15 and R.sup.16 or R.sup.17 and R.sup.18 may together form an alkylidene group, n is 0 or 1, and m is 0 or a positive integer, provided that m and n cannot be simultaneously zero, which comprises, based on the cycloolefin having an endo form and the cycloolefin having an exo form in total, up to 80 mol % of the cycloolefin having and endo form and at least 20 mol % of the cycloolefin having an exo form.
Dependencies are inferred from the claim text.