Energy absorbing, water blown, rigid polyurethane foam
US5143941A · kind A · utility
18Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Nov 21, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to energy absorbing, water blown, rigid polyurethane foams. The foams of the present invention are low density, predominantly open celled foams which exhibit a relatively constant consistency of compressive strength over deflection. Such foams are suitable as light weight alternatives in traditional energy absorbing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.