Polyurethane foam
US9000118B2 · kind B2 · utility
1Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2008 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jul 10, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer-modified polyol, for use as a starting material for polyurethane foam, is made by reacting an olamine, such as triethanolamine, with an isocyanate in the presence of a metal organic catalyst. The catalyst is a metal salt of an organic acid and the viscosity of the polymer-modified polyol is at least 2250 mPa·s. In one embodiment the catalyst is of the formulat M(O.CO.R.CH3)2 where M is a metal and R is a carbon chain of 6 to 20 carbons. A metal salt of a monohydroxy fatty acid, particularly ricinoleic acid may be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.