Hollow strandfoam and preparation thereof
US6844055B1 · kind B1 · utility
21Cited by
23References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Aug 16, 2021 |
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.