Polyurethane foam sealing material and process for producing the same
US4264743A · kind A · utility
149Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1979 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Apr 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2190/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flexible or semi-rigid open-cell, polyurethane foam sealing material prepared from a polyisocyanate and a polyol component, a major portion of said polyol component consisting of a polyol derived from a dimer acid or castor oil, castor oil, or a mixture thereof in the presence of a blowing agent, a foam stabilizer, a catalyst, and, optionally, a lipophilic filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.