Resin foam and foam sealing material
US9150716B2 · kind B2 · utility
2Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2011 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249983
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a resin foam excellent in dustproof performance, particularly dustproof performance in a dynamic environment. The resin foam of the present invention has a thickness recovery ratio of 65% or more, wherein the thickness recovery ratio is defined as a ratio of a thickness 1 second after releasing a compressed state to an initial thickness, when the resin foam is compressed for 1 minute in the thickness direction so as to give a thickness equal to 20% of the initial thickness in a 23° C. atmosphere; and then the compressed state is released in a 23° C. atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.