Energy-attenuating polyurethanes
US4722946A · kind A · utility
82Cited by
6References
55Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Jul 3, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2350/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A non-liquid, energy-absorbing polyurethane is derived from the process which comprises reacting a mixture of linear and branched polyols, a polyisocyanate and, optionally, a blowing agent, under polyurethane-forming conditions at an isocyanate index of from about 65 to about 85.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.