Hollow strandfoam and preparation thereof
US7300612B2 · kind B2 · utility
13Cited by
19References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2004 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jul 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31971
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Prepare a foam structure that includes hollow coalesced foam strands and, optionally, solid coalesced foam strands using an extrusion die block equipped with apertures that promote forming the hollow strands and, optionally, the solid foam strands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.