High strength thermoplastic elastomers with high filler loading
US7964672B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2004 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A high strength thermoplastic vulcanizate (TPV) composition is provided. The TPV includes a dispersed rubber component, a polyolefinic thermoplastic resin component, a propylene copolymer and mineral filler present in the amount of 20 wt % to 70 wt % based on total of the thermoplastic vulcanizate composition. Preferably, the propylene copolymer has 60 wt % or more units derived from propylene; includes isotactically arranged propylene derived sequences; and has a heat of fusion less than 45 J/g. Preferably, the mineral filler is halogen free and flame retardant. The high strength TPV can be useful for making a variety of articles for electrical, construction, automotive, and consumer applications, including fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.