公开(公告)号：US20250115752A1

公开(公告)日：2025-04-10

申请号：US18726340

申请日：2023-01-04

Applicant: Avient Corporation

Inventor： Jiren Gu ,  Hochul Jung ,  John Swanson

IPC: C08L51/00 ,  C08F287/00 ,  C08L91/00

Abstract: Embodiments of the present disclosure are directed to thermoplastic elastomer articles comprising a crosslinked reaction product of styrene block copolymer and silane. The styrene block copolymer comprises at least one terminal polymer block A. The at least one terminal polymer block A comprises a vinyl compound having para-alkylstyrene. The styrene block copolymer is silane grafted and silane crosslinked.

公开(公告)号：US20250075021A1

公开(公告)日：2025-03-06

申请号：US18726396

申请日：2023-01-04

Applicant: Avient Corporation

Inventor： Jiren Gu ,  Hochul Jung ,  John Swanson

IPC: C08F287/00 ,  C08J3/18 ,  C08J3/24 ,  C08K5/01 ,  C08K5/14

Abstract: Embodiments of the present disclosure are directed to thermoplastic elastomer articles comprising a crosslinked reaction product of styrene block copolymer, rubber, and silane. The styrene block copolymer comprises at least one terminal polymer block A. The at least one terminal polymer block A comprises a vinyl compound having para-alkyl styrene. The rubber comprises at least one of ethylene propylene diene rubber, silicone rubber, and nitrile butadiene rubber. The styrene block copolymer and the rubber are silane grafted and silane crosslinked. The silane crosslinking is at least one of intramolecular silane crosslinking and intermolecular silane crosslinking.

公开(公告)号：US12221539B2

公开(公告)日：2025-02-11

申请号：US17420878

申请日：2020-01-07

Applicant: Avient Corporation

Inventor： Jiren Gu

IPC: C08L75/06 ,  C08L75/08 ,  B29C45/14 ,  B29K75/00 ,  B29K105/00

Abstract: Thermoplastic articles are molded from thermoplastic polyurethane compounds including blends of aliphatic polycaprolactone thermoplastic polyurethane and aromatic thermoplastic polyurethane selected from aromatic polyester thermoplastic polyurethane, aromatic polyether thermoplastic polyurethane, and combinations thereof. The thermoplastic articles exhibit enhanced stain resistance, as represented by achieving a rating of 2 or better according to Blue Jean Abrasion Test, relative to thermoplastic articles molded from thermoplastic polyurethane compounds including either aromatic polyester thermoplastic polyurethane or aromatic polyether thermoplastic only, while also having good clarity (i.e., low haze) and other desirable properties. The thermoplastic articles can be especially useful as protective cases for handheld electronic devices.