Novel catalyst system for polyurethane foams
US4353995A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1979 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | Dec 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/163
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The instant invention is directed to a novel catalyst system for the production of polyurethane resin, and the method of use of such catalyst system. The catalyst systems of the instant invention broadly comprise PA1 (a) a tertiary amine, PA1 (b) a tin compound capable of catalyzing the reaction between an isocyanate group and an active hydrogen atom, and PA1 (c) a compound of the formula: EQU (R--COO--.sub.2 Me wherein Me represents calcium or barium, and PA1 R represents a hydrocarbon group. It has been found that the component (c) tends to catalyze size reactions which occur during foaming between isocyanate groups and the initial reaction products of isocyanates and active hydrogen containing compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.