Multilayer foams
US6440241B1 · kind B1 · utility
8Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/468
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention concerns foamed products having a plurality of coalesced extruded layers or layers of coalesced strands of a foamed thermoplastic composition having a low density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.