Natural resource based viscoelastic foams
US8686058B2 · kind B2 · utility
2Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Apr 12, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7621
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Embodiments of the present invention disclose viscoelastic foams having a renewable natural resource contents of between about 1 and about 25 wt % of the foam. The foams may have a ratio of elastic modulus (E′) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.