Organometallic compositions and polyisocyanate compositions containing them
US6908875B2 · kind B2 · utility
5Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Sep 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J31/2208
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organometallic composition, suitable for use in curing polyisocyanate compositions, includes a complex of at least one metal selected from iron, cobalt and aluminum and at least one β-dicarbonyl compound wherein when the metal is iron (II) or cobalt (II) the molar ratio of β-dicarbonyl compound to metal is in the range from 2.1:1 to 10:1, and when the metal is aluminum (III), iron (III) or cobalt (III) the molar ratio of β-dicarbonyl compound to metal is in the range from 3.1:1 to 10:1. A polyisocyanate composition containing the organometallic composition and a process for binding lignocellulosic material is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.