Patent ID: 6660446
Filing Date: 2003-12-09
Classification: B41C,B41M,Y10S

Abstract:
A heat-sensitive composition comprising (I) a compound which generates an acid or a radical when heated and which is represented by the following general formula (A), general formula (B), general formula (C), general formula (D) or general formula (E), and further comprising (II) a compound whose physical and chemical properties are changed irreversibly by an acid or radicalaXâ€”COOâˆ’aM+â€ƒâ€ƒGeneral formula (A) â€ƒdRâ€”COOâˆ’dM+â€ƒâ€ƒGeneral formula (D)eXâˆ’eM+â€ƒâ€ƒGeneral formula (E) wherein, in general formula (A), aM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium; and aX represents one of the groups shown below or a halogen atom; and in the above formulas, R1 and R2 may be the same or different and represent a monovalent non-metal atom, in the general formula (B), bY has the same definition as for aX in the general formula (A) or represents â€”OH, â€”CN, â€”NO2, â€”Si(R5)(R6)(R7); R3 to R7 may be the same or different and represent a monovalent non-metal atom; and bM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium; in the general formula (C), R8 represents a monovalent non-metal atom; Ar1 and Ar2 may be the same or different and represent an aryl group; and cM+ represents a monovalent cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium; in the general formula (D), dR represents an alkyl group or aryl group; and dM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium, in the general formula (E), eXâˆ’ is an anion of a compound having a structure of the following general formula (F); wherein in general formula (F), FY represents a single bond, â€”COâ€” or â€”SO2â€”; Ra and Rb each independently represents a linear, branched or cyclic alkyl group, aryl group, aralkyl group or camphor group; Ra and Rb may be connected via an alkylene group, arylene group or aralkyl group to form a ring; when FY is a â€”COâ€” group, Rb may be a hydroxyl group or an alkoxy group; and eM+ represents a counter cation selected from the group consisting of sulfonium, iodonium, diazonium and azinium.