Extruded ethylenic polymer foam containing both open and closed cells
US4931484A · kind A · utility
28Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Jun 14, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is an extruded, low density, non-outgassing ethylenic polymer foam containing 30-85% open cells and the remainder closed cells and having an essentially integral surface. The foam possesses superior compression recovery and lower compression resistance when compared with similarly comprised ethylenic closed cell foams and superior moisture resistance and handling characteristics when compared to open cell foams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.