Oligomeric cyanoguanidines
US5352831A · kind A · utility
8Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/4021
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Oligomeric cyanoguanidines of formula I ##STR1## wherein, for example, R.sup.1 and R.sup.2 are each phenyl, R is 1,4-phenylene and n is an integer from 1 to 20, are suitable latent hardeners for epoxy resins. They are readily soluble in solvents suitable for the application of epoxy resins, and the cured products obtained therewith have a high glass transition temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.