Process for flexible cellular material preparation
US6432335B1 · kind B1 · utility
23Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1999 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flexible cellular material can be made by extruding a composition containing a polyurethane prepolymer, where the prepolymer has end groups selected from the group consisting of isocyanate end groups and trialkoxysilyl end groups, and the prepolymer is self-crosslinkable with moisture. The flexible cellular material has an expanded or foamed polymer matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.