Crosslinked body and vibration damper
US10457802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 26, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a crosslinked body obtained by crosslinking a composition which comprises 100 parts by mass of (A) an ethylene/α-olefin/non-conjugated polyene copolymer having one or more peaks of tan δ in the temperature range of −50 to −30° C., the tan δ being determined by dynamic viscoelasticity measurement, 50 to 500 parts by mass of (B) an olefin-based copolymer having one or more peaks of tan δ in the temperature range of 0 to 40° C., the tan δ being determined by dynamic viscoelasticity measurement, 5 to 300 parts by mass of (C) a softener, 10 to 300 parts by mass of (D) a reinforcing filler and 0.1 to 10 parts by mass of (E) a vulcanizing agent, and which has a content ratio by mass ((C)/(D)) of (C) the softener to (D) the reinforcing filler of 0.3 to 1.5, the crosslinked body having a durometer hardness (value immediately after measurement) of 50 to 8. The crosslinked body of the present invention has high hardness and low rebound resilience compatible with each other, and from the crosslinked body, a vibration damper having high hardness and low rebound resilience compatible with each other and various products requiring vibration damping properties can be obtai…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.