Energy absorbing, water blown, rigid polyurethane foam articles
US5187204A · kind A · utility
12Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2120/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to water blown, low density, energy absorbing rigid polyurethane foam articles which exhibit minimal springback or hysteresis characteristics. The articles produced from the foams of the present invention maintain a constant crush strength of material up to about 70% deflection and are useful in appropriate automotive applications such as side impact bolsters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.