Semi-flexible polyurethane foams containing amylaceous material and process for preparing same
US4197372A · kind A · utility
14Cited by
12References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1978 |
| Grant date | Apr 8, 1980 |
| Priority date | — |
| Expiry date | Jan 16, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2403/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Semi-flexible, shock-absorbing polyurethane foams containing an amylaceous material, such as a cereal starch or flour, and having an open cell structure are prepared by co-reacting the amylaceous material and a polyether with an aromatic polyisocyanate having a functionality of about 2 to about 2.4. The foams are particularly useful in crash padding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.