Patent · US Active

Thermoplastic vulcanizate including rubber block interpolymer

US10155862B2 · kind B2 · utility

1Cited by

8References

10Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Xiaosong Wu · Pensacola, US
Kim L. Walton · Lake Jackson, US
Colin Li Pi Shan · Pearland, US

Key dates

Filing date	Dec 11, 2015
Grant date	Dec 18, 2018
Priority date	—
Expiry date	Dec 11, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L23/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A thermoplastic vulcanizate composition includes (a) a crystalline thermoplastic polyolefin comprising alpha-olefin monomers having from 2 to 5 carbon atoms, (b) a rubber block interpolymer comprising a first block and a second block having differing chemical or physical properties from the first block, the first block is derived from ethylene, a first alpha-olefin monomer having from 3 to 10 carbon atoms, and a first diene monomer having from 2 to 25 carbon atoms, the second block is derived from ethylene, a second alpha-olefin monomer having from 3 to 10 carbon atoms, and optionally a second diene monomer having from 2 to 25 carbon atoms, and an amount of the block interpolymer in the composition being greater than an amount of the thermoplastic polyolefin in the composition, and (c) a curative system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.