Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
252 words
An initiator system for radiation curable compositions, comprising (a) a compound of the formula: ##STR20## where R 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 ##STR21## 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 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 3 and R 4 may be the same or different and represent a hydrogen, a chlorine or a bromine atom or a phenyl group, a substituted or unsubstituted alkyl group or alkoxy group having 1 to 4 carbon atoms, or a dialkyl amino group of which the alkyl groups have 1 to 4 carbon atoms and may be substituted with a hydroxyl group, and (b) a synergistic amount of a Na, K and/or Li-salt of an organic acid that is compatible with the curable compositions.
Claim 2
Dependent Claim
252 words
An initiator system for radiation curable compositions, comprising (a) a compound of the formula: ##STR20## where R 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 ##STR21## 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 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 3 and R 4 may be the same or different and represent a hydrogen, a chlorine or a bromine atom or a phenyl group, a substituted or unsubstituted alkyl group or alkoxy group having 1 to 4 carbon atoms, or a dialkyl amino group of which the alkyl groups have 1 to 4 carbon atoms and may be substituted with a hydroxyl group, and (b) a synergistic amount of a Na, K and/or Li-salt of an organic acid that is compatible with the curable compositions.
Claim 3
Dependent Claim
39 words
An initiator system according to claim 1, characterized in that the acid is at least one of a carboxylic acid, sulphonic acid, sulphinic acid, a partially esterified sulphuric or phosphoric acid, a phosphonic acid, phosphinic acid, and an arylhydroxide.
Claim 4
Dependent Claim
29 words
An initiator system according to claim 1 or 2, characterized in that per 1 to 10 parts of compound a it contains 0,1 to 2 parts of compound b.
Claim 5
Dependent Claim
20 words
An initiator system according to claim 1, characterized in that it contains some amount of solvent c for component b.
Claim 6
Dependent Claim
24 words
An initiator system according to claim 4, characterized in that the amount of solvent is 20 to 80% by weight of the components a+b+c.
Claim 7
Dependent Claim
17 words
An initiator system according to claim 4 or 5, characterized in that the solvent used is water.
Claim 8
Dependent Claim
24 words
An initiator system according to claim 4 or 5, characterized in that the solvent is an aliphatic alcohol having 1 to 8 carbon atoms.
Claim 9
Dependent Claim
42 words
An initiator system according to claim 1, characterized in that compound a corresponds to the formula: ##STR22## where R 1 is a hydrogen atom or a lower alkyl group and R 2 is an alkyl group having 4 to 20 carbon atoms.
Claim 10
Dependent Claim
22 words
An initiator system according to claim 8, characterized in that R 2 represents an alkyl group having 8 to 16 carbon atoms.
Claim 11
Dependent Claim
54 words
An initiator system according to claim 1, characterized in that compound a corresponds to the formula: ##STR23## where R 1 represents a hydrogen atom or a lower alkyl group and R 2 represents a group of the formula ##STR24## where R represents an alkyl group or alkoxy group having 8 to 13 carbon atoms.