Polyolefin foam useful for sound and thermal insulation
US6583193B2 · kind B2 · utility
10Cited by
34References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/918
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extruded, coalesced foam strand propylene polymer material that is either open-celled and useful for sound insulation applications or close celled and useful for thermal insulation applications.An apparatus suitable for preparing such foams with an expanded cross-section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.