Closed cell propylene-ethylene foam
US8492447B2 · kind B2 · utility
2Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2008 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A closed cell foam material contains a propylene based polymer comprising from about 5% to about 32% by weight α-olefin units. The propylene based polymer has a heat of fusion, as determined by DSC, of less than 80 J/g. The material also contains 0.5 to 5 phr peroxide, 1.0 to 5.0 phr blowing agent, and 0.1 to 10 phr co-agent. The cells of closed cell foam material have a diameter in the range of 0.1 to 1.5 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.