METHOD FOR PRODUCING CYCLIC OLEFIN POLYMER

WIPO Patent Application WO/2020/071494

A1

The present invention provides a method for producing a cyclic olefin polymer which is capable of stably producing a cyclic olefin polymer with a desired yield that is commensurate with the polymerization conditions in cases where the cyclic olefin polymer is produced using a transition metal complex catalyst such as a metallocene catalyst. In a method for producing a cyclic olefin polymer according to the present invention, wherein a monomer that contains a norbornene compound containing an epoxide impurity is polymerized in the presence of a transition metal catalyst, a crude norbornene compound containing an epoxide impurity is treated with use of a hybrid adsorbent that is composed of a mixture of active alumina and zeolite so as to reduce the amount of the epoxide impurity in the monomer, thereby setting the ratio (mass ppm/mass ppm) of the content of the epoxide impurity and the content of the catalyst relative to the total mass of a polymerization solution that is subjected to the polymerization to 6 or less.

JP2010084073	METHOD OF MANUFACTURING NORBORNENE BASED POLYMER
JP3642316	MONOMER FOR CHEMICAL AMPLIFICATION RESIST, POLYMER FOR CHEMICAL AMPLIFICATION RESIST, CHEMICAL AMPLIFICATION RESIST COMPOSITION AND METHOD FOR FORMING PATTERN

TADA TOMOYUKI (JP)
KOMATSU HIROYUKI (JP)
YAMADA SHINJI (JP)

PCT/JP2019/039165

April 09, 2020

October 03, 2019

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POLYPLASTICS CO (JP)

C08F32/04; C08F232/04; C07C7/12

JPH05132523A	1993-05-28
JP2016522309A	2016-07-28
JP2000204120A	2000-07-25
JP2005145855A	2005-06-09

"UOP LLC, UOP Adsorbents; Purification of olefin and polymer process streams", 20 July 2011 (2011-07-20), XP055699386, Retrieved from the Internet

SHOBAYASHI Masayuki et al. (JP)

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