Polyisocyanate based polymers prepare from formulations including non-silicone surfactants and method for the preparation thereof
US5674918A · kind A · utility
1Cited by
8References
7Claims
0Family size
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Key dates
| Filing date | Aug 22, 1996 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Aug 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/01
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane, polyisocyanurate and polyurea polymers, particularly foamed polymers can be prepared from formulations including non-silicone polyether surfactants. The non-silicone polyether surfactants can be polyethers having from about 10 to about 90 weight percent oxyethylene units and from about 10 to about 90 weight percent oxyalkylene units having at least 4 carbons. The non-silicone polyether surfactants can be used to prepare foams having properties substantially similar to foams prepared with conventional silicone based surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.