Alkyl substituted bi(cyclohexylamines)
US5264501A · kind A · utility
2Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1991 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Aug 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention pertains to alkyl substituted bi(cyclohexylamine) and derivatives having a high trans,trans-isomer distribution. This isomer distribution represents a thermodynamic mixture of the isomers and provides for extended pot life and extended thermal properties in epoxy resins which are not seen with the kinetic isomer mixture. The bridged cyclohexylamine and derivatives are represented by the formula: ##STR1## wherein; R.sup.1 is hydrogen or C.sub.1-4 alkyl; PA1 R.sup.2 is C.sub.1-4 alkyl; and PA1 R.sup.3 is hydrogen or C.sub.1-4 alkyl The invention also relates to epoxy resins cured with the bridged bi(cyclohexylamines).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.