Catalyst system for furan resins
US4439348A · kind A · utility
32Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Feb 5, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalytic system for furan resin is disclosed, comprising mixtures of a sulfonic acid with urea salts of the respective sulfonic acid. By varying the acid:salt ratio of the catalytic system, the working time of the furan resin may be controlled as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.