Back to results
US 12,428,521 B2Granted
Cycloolefin ring-opened copolymer, composition for electrically insulating material, and electrically insulating material
AssigneeZeon Corporation
InventorNaoya Kishi
Life of this patent
Estimating the term…
Abstract
A cycloolefin ring-opened copolymer includes a structural unit derived from a norbornene compound that includes a heteroelement-containing hydrocarbon group and a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group. In this copolymer, the structural unit derived from the norbornene compound that includes the heteroelement-containing hydrocarbon group has a proportional content of not less than 0.01 mol % and not more than 15.00 mol % when all structural units included in the copolymer are taken to be 100 mol %.
Claims5
A cycloolefin ring-opened copolymer comprising:
- a structural unit derived from a norbornene compound that includes a heteroelement-containing hydrocarbon group;
- and a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group, wherein
- the structural unit derived from the norbornene compound that includes the heteroelement-containing hydrocarbon group has a proportional content of not less than 0.01 mol % and not more than 15.00 mol % when all structural units included in the cycloolefin ring-opened copolymer are taken to be 100 mol %, and
- the structural unit derived from the norbornene compound that includes the heteroelement-free hydrocarbon group includes a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group and an aromatic ring.
1 more element
Dependencies are inferred from the claim text.