Abstract: A new initiator system for radiation curable composition is disclosed.In said system there are incorporated:(a) a photoinitiator, with the exception of a compound of the formula: ##STR1## where R.sub.1 =H or an alkyl group, an alkenyl group, a cycloalkyl or cycloalkenyl group, an aryl group, a furfuryl group or the group ##STR2## where Y represents a methyl group and Z an alkyl group or Y and Z together form a 1,3- or 1,4-alkylene group having 3 or 4 carbon atoms; R.sub.2 =an alkyl group or alkenyl group, a cycloalkyl group or cycloalkenyl group, an alkaryl group or a furfuryl group; R.sub.3 and R.sub.

Abstract: A new initiator system for radiation curable compositions is disclosed.In said system there are incorporated:(a) a compound of the formula: ##STR1## where R.sub.1 =H or a substituted or unsubstituted alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, a cycloalkyl or cycloalkenyl group having 5 to 8 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, a furfuryl group or the group ##STR2## where Y represents a methyl group and Z an alkyl group having 2 to 4 carbon atoms or Y and Z together form a 1,3- or 1,4- alkylene group having 3 or 4 carbon atoms which is substituted or not with an alkoxy group having 1 to 4 carbon atoms; R.sub.2 =a substituted or unsubstituted alkyl group or alkenyl group having 4 to 20 carbon atoms, a cycloalkyl group or cycloalkenyl group having 5 to 8 carbon atoms, an alkaryl group having 4 to 16 carbon atoms in the alkyl group or a furfuryl group; R.sub.3 and R.sub.

Abstract: A thermosetting coating composition contains an acid-curable amino resin and from 0.1 to 10 percent by weight of a blocked sulphonic acid calculated on the weight of amino resin. In order to reduce the electric conductivity of the composition after a prolonged pot-life, a sulphonic acid oximate is used as the blocked acid.The compositions are advantageous for coating a substrate by electrostatic spraying.

Abstract: Novel triazine derivatives which are with cyanoacetic acid, derivatives of cyanoacetic acid or malodinitrile substituted s-triazines and which provide stabilizers against ultraviolet radiation for organic polymers such as polyvinyl chloride or copolymers of polyvinyl chloride or polypropylene are obtained by reacting the corresponding chloro-s-triazinyl derivatives with sodium hydride or a metal lower alcoholate in an organic solvent, and isolating the resulting product by acidification.