US 12,018,116 B2
Hydrogenated ring-opened polymer, resin composition, and shaped product
Shigetaka Hayano, Tokyo (JP); Hideyuki Kanda, Tokyo (JP); Taichi Sawaguchi, Tokyo (JP); and Yuki Nakama, Tokyo (JP)
Assigned to ZEON CORPORATION, Tokyo (JP)
Appl. No. 17/593,254
Filed by ZEON CORPORATION, Tokyo (JP)
PCT Filed Mar. 10, 2020, PCT No. PCT/JP2020/010366
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/195801, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-061488 (JP), filed on Mar. 27, 2019.
Prior Publication US 2022/0153924 A1, May 19, 2022
Int. Cl. C08G 61/08 (2006.01); C08L 65/00 (2006.01)
CPC C08G 61/08 (2013.01) [C08L 65/00 (2013.01); C08G 2261/3324 (2013.01); C08G 2261/418 (2013.01)] 5 Claims
 
1. A hydrogenated ring-opened polymer comprising 90 mass % or more of norbornene-derived structural units, wherein
a proportion of meso diads of structural units having a cis-1,3-cyclopentane structure indicated by formula (I), shown below,

OG Complex Work Unit Chemistry
included among the norbornene-derived structural units is from 0% to not more than 30%, or alternatively, not less than 70% to 100%, and
structural units having a trans-1,3-cyclopentane structure indicated by formula (II), shown below,

OG Complex Work Unit Chemistry
constitute a proportion of not less than 0.5% and not more than 20% among a total of the structural units having the cis-1,3-cyclopentane structure indicated by formula (I) and the structural units having the trans-1,3-cyclopentane structure indicated by formula (II).