Claims
- 1. A curable epoxy resin composition which comprises
- (a) an epoxy resin having more than one epoxy group per molecule, and
- (b) an effective amount of an N-cyanocarboxylic acid amide derivative which contains two or three ##STR42## groups in the molecule and has one of the formulae I to III ##STR43## in which R.sub.1 is alkyl having 1 to 8 carbon atoms, said alkyl substituted by chlorine, by bromine or by nitro, cycloalkyl having 5 to 8 carbon atoms, aryl having 6 or 10 ring carbon atoms or said aryl substituted by 1 or 2 chlorine, by 1 or 2 bromine, by 1 or 2 nitro, by 1 or 2 alkyl of 1 to 4 carbon atoms or by 1 or 2 alkoxy of 1 to 4 carbon atoms,
- R.sub.2 is alkylene having 2 to 12 carbon atoms, said alkylene interrupted by O or S atoms, but-2-enylene, but-2-ynylene, phenylenedimethylene or a radical of the formula ##STR44## in which --A-- is --CH.sub.2 --, --SO.sub.2 -- or --O--, R.sub.3 is alkyl having 1 to 8 carbon atoms, said alkyl substituted by chlorine, by bromine or by nitro, cycloalkyl having 5 to 8 carbon atoms, allyl methallyl, phenyl, phenyl substituted by 1 or 2 chlorine, by 1 or 2 bromine, by 1 or 2 nitro, by 1 or 2 alkyl of 1 to 4 carbon atoms or by 1 or 2 alkoxy of 1 to 4 carbon atoms or R.sub.3 is aralkyl having not more than 12 carbon atoms, or said aralkyl substituted on the ring by 1 or 2 chlorine, by 1 or 2 bromine, by 1 or 2 nitro or by 1 or 2 alkyl of 1 to 4 carbon atoms,
- R.sub.4 is a direct bond, alkylene having 1 to 12 carbon atoms, said alkylene interrupted by O or S atoms, 1,3-cyclohexylene, 1,4-cyclohexylene, 1,3-phenylene or 1,4-phenylene, and
- R.sub.5 is a radical of the formula ##STR45##
- 2. A composition according to claim 1 wherein component (b) is an N-cyanocarboxylic acid amide derivative of one of formulae I to III in which R.sub.1 is alkyl having 1 to 4 carbon atoms, cyclohexyl, phenyl or phenyl substituted by 1 or 2 chlorine, by 1 or 2 bromine, by 1 or 2 nitro, by 1 or 2 alkyl of 1 to 4 carbon atoms or by 1 or 2 alkoxy of 1 to 4 carbon atoms,
- R.sub.2 is alkylene having 2 to 6 carbon atoms, phenylenedimethylene or a radical of the formula ##STR46## in which --A-- is --CH.sub.2 --, --SO.sub.2 -- or --O--, R.sub.3 is alkyl having 1 to 4 carbon atoms, allyl, benzyl or benzyl substituted on the ring by 1 or 2 chlorine, by 1 or 2 bromine, by 1 or 2 nitro or by 1 or 2 alkyl of 1 to 4 carbon atoms,
- R.sub.4 is alkylene having 2 to 8 carbon atoms, 1,3-cyclohexylene, 1,4-cyclohexylene, 1,3-phenylene or 1,4-phenylene, and
- R.sub.5 is a radical of the formula ##STR47##
- 3. A composition according to claim 2 wherein component (b) is an N-cyanocarboxylic acid amide derivative of formula I or of formula II.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1107/82 |
Feb 1982 |
CHX |
|
Parent Case Info
This is a divisional of application Ser. No. 466,457, filed on Feb. 15, 1983, now U.S. Pat. No. 4,618,712, issued on Oct. 21, 1986.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0078503 |
May 1983 |
EPX |
2022492 |
Dec 1971 |
DEX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
466457 |
Feb 1983 |
|