Foam stabilizing additive and polyurethane foam prepared in the presence thereof
US5310766A · kind A · utility
5Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Jun 15, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a polyurethane foam stabilizing additive that comprises from about 10 to about 50 weight percent a hydrocarbon oil, and in from about 90 to about 50 weight percent a polyester polyol which is a solid at room temperature. Use of the additive in a polyurethane foaming process provides for improved dimensional stability of the resulting foam. The additive is especially of value when preparing water blown polyether polyol-based polyurethane foam useful, for example, in sealant applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.