Polyurethane foam system
US4072623A · kind A · utility
4Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1975 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | Nov 28, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/906
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
We disclose a combination of three polyols. Polyurethane foams formed by reacting these polyols with an isocyanate exhibit good foam-substrate adhesion and good foam surface properties. This combination of polyols performs especially well in spray applications and is ideally suited for use in cold weather.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.