Polyurethane and urethane-modified isocyanurate foams and a polyol composition useful in their preparation
US4661529A · kind A · utility
15Cited by
22References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Dec 16, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/914
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Isocyanate-derived foams are prepared from an isocyanate, catalyst, blowing agent, foam stabilizing surfactant and at least two active hydrogen-containing compounds wherein one of the active hydrogen-containing compounds is an alkylene oxide polymer having an equivalent of at least 300 and being composed of at least about 10 weight percent, based on a total weight of the polymerized alkylene oxide in the polymer, of a polymerized ethylene oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.