Method for accelerating cure of resole type phenolic resins
US4426484A · kind A · utility
29Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1981 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Oct 14, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L61/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The cure of resin compositions comprising a mixture of a resole type phenol aldehyde resin and a novolac type phenol formaldehyde resin is improved by employing resorcinol as all or part of the phenolic component in the novolac type resin. The resin compositions are particularly useful as binders for foundry sand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.