Reduced density foam articles and process for making
US6623674B1 · kind B1 · utility
9Cited by
37References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jun 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention discloses reduced density foams and methods of making the foams by applying or creating a nonfoaming barrier layer on a foamable layer, which barrier layer inhibits the escape of fugitive gases during the foaming process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.