Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1989-10-23
1990-05-08
Brammer, Jack P.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430288, 430345, 430919, 430924, 522 14, 522 23, G03C 168
Patent
active
049237810
ABSTRACT:
A photopolymerizable composition comprises a polyfunctional monomer, a photopolymerization initiator, an organic halogen compound and a 3,6-diaminofluoran derivative. The 3,6-diaminofluoran has the formula (I): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is hydrogen, an alkyl group, a cycloalkyl group, an aralkyl group, an aryl group or a heterocyclic group, R.sup.1 and R.sup.2 (also R.sup.3 and R.sup.4 may form a heterocyclic ring in conjunction with the adjoining nitrogen atom, provided that at least two of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are aryl groups, or at least one group of the group containing R.sup.1 and R.sup.2 and the group containing R.sup.3 and R.sup.4 forms in conjunction with the adjoining nitrogen atom a heterocyclic ring; each of R.sup.5, R.sup.6 and R.sup.7 is an alkyl group, an alkoxy group, a halogen atom, nitro group, amino group, an alkylamino group, a dialkylamino group or an acylamino group, excluding the case where either one of the 2-position and the 7-position of the derivative is substituted with amino group, an alkylamino group, a dialkylamino group or an acylamino group); each of x and y is an integer of 0 to 3; and z is an integer of 0 to 4.
REFERENCES:
patent: 3042515 (1962-07-01), Wainer
patent: 4343885 (1982-08-01), Reardon et al.
patent: 4775656 (1988-10-01), Harada et al.
Fujikura Sadao
Iwakura Ken
Iwasaki Masayuki
Maeda Minoru
Brammer Jack P.
Fuji Photo Film Co. , Ltd.
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