Breathable polymer foams
US7083849B1 · kind B1 · utility
62Cited by
40References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1999 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Jun 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous method for making porous foam and the foam articles are described. The method allows for tailoring the porosity of the foam by controlling process variables including draw rate and blowing agent concentration. A method for co-extruding the foams with other materials is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.