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
1989-04-14
1991-09-17
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430170, 430179, 430194, 430196, 430334, 430336, 430495, G03C 154, G03F 7004
Patent
active
050494775
ABSTRACT:
A radiation responsive composition containing a compound represented by the following formula (I) and a photoreducing agent capable of forming a redox couple together with said compound for many uses, e.g., image formation, etching, plating, etc.: ##STR1## wherein N represents a nitrogen atom; X represents an oxygen atom (--O--), a sulfur atom (--S--), or a nitrogen-containing group of formula, ##STR2## R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represents a mere bond, a substituted or unsubstituted alkyl, aryl, heterocyclic, acyl, aralkyl, alkenyl, alkynyl or carbamoyl group, or a sulfonyl group into which a substituted or unsubstituted alkyl or aryl group has been introduced, provided that at least one of the substituents R.sup.1 to R.sup.3 be a substituted or unsubstituted aryl or heterocyclic group and that two or more of R.sup.1, R.sup.2 and R.sup.3, or of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 when X represents a nitrogen containing group of formula, ##STR3## may be taken together to form a ring; UG represents a group to be released from said compound of formula (I) taking advantage of the N--X bond cleavage as a trigger, which takes place when a redox couple is formed between said compound of formula (I) and the photoreducing agent irradiated with radiant rays; and the solid lines represent bonds, while broken lines indicate that a bond may or may not be present, but at least one of the broken lines forms a bond.
REFERENCES:
patent: 3887374 (1975-06-01), Brongo et al.
patent: 4273860 (1981-06-01), Adin
patent: 4314019 (1982-02-01), Adin
Koya Keizo
Nakamura Koki
Tsuboi Masayoshi
Bowers Jr. Charles L.
Chu John S. Y.
Fuji Photo Film Co. , Ltd.
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