Ethylene/α-olefin/non-conjugated polyene copolymer, and production process and use thereof

US10435494B2 · kind B2 · utility

Assignee

• MITSUI CHEMICALS, INC. · JP

Inventors

• Kotaro Ichino · Ichihara, JP
• Yoshiharu Kikuchi · Ichihara, JP
• Yasushi Tohi · Yamaguchi, JP
• Tomoaki Matsugi · Sodegaura, JP
• Yasushi YANAGIMOTO · Ichihara, JP
• Mitsunao Arino · Ichihara, JP
• Keisuke Shishido · Ichihara, JP
• Mikio Hosoya · Ichihara, JP

Key dates

• Filing date: Jul 9, 2018
• Grant date: Oct 8, 2019
• Expiry date: Jul 9, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L11/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A novel ethylene/α-olefin/non-conjugated polyene copolymer comprising structural units derived from ethylene (A), an α-olefin (B) of 3 to 20 carbon atoms, and a non-conjugated polyene (C) containing intramolecularly two or more partial structures in total selected from the group consisting of structures of Formulae (I) and (II), and having a small number of long-chain branches,The novel ethylene/α-olefin/non-conjugated polyene copolymer contains a non-conjugated polyene such as VNB as a copolymerization component and a small long-chain branch content and is excellent in curing properties in the case of crosslinking using peroxide; and a process for producing the ethylene/α-olefin/non-conjugated polyene copolymer, and a use thereof are provided.