US4229514A
Expired / Lapsed
US
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Photosensitive composition
Assignee: Konica Minolta Inc
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Filing: 1978-12-29
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Granted: 1980-10-21
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Expires: 1998-12-29
Abstract
Abstract A composition containing a photosensitive polymer which becomes insoluble by a light exposure and particularly to a highly photosensitive composition which comprises a photosensitive polymer having in the structure as photosensitive groups both an a,B-unsaturated ketone group having a cyano group at the a-position and an azide group.
Inventors
- 👤 Yoshio Kurita
- 👤 Akio Iwaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/008; G03F7/012
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
125 words
A photosensitive composition containing as active ingredient a polymer which has, in the molecular structure, a structural unit represented by the general formula (I): ##STR4## wherein R 1 represents hydrogen, an alkyl group or carboxyl; R 2 represents hydrogen, halogen or an alkyl group; R 3 represents hydrogen, an alkyl group, an aryl group or an aralkyl group; Y and Z individually represent an arylene group; X represents a divalent organic group connecting the adjacent nitrogen atom and the aromatic ring carbon atom of Y; and n represents 0 or 1, the structural unit of said polymer being present in said polymer in an amount not less than 10 mole percent and said polymer having a molecular weight of from about 2,000 to about 1,000,000.
Claim 2
Dependent Claim
125 words
A photosensitive composition containing as active ingredient a polymer which has, in the molecular structure, a structural unit represented by the general formula (I): ##STR4## wherein R 1 represents hydrogen, an alkyl group or carboxyl; R 2 represents hydrogen, halogen or an alkyl group; R 3 represents hydrogen, an alkyl group, an aryl group or an aralkyl group; Y and Z individually represent an arylene group; X represents a divalent organic group connecting the adjacent nitrogen atom and the aromatic ring carbon atom of Y; and n represents 0 or 1, the structural unit of said polymer being present in said polymer in an amount not less than 10 mole percent and said polymer having a molecular weight of from about 2,000 to about 1,000,000.
Claim 3
Dependent Claim
23 words
A photosensitive composition according to claim 1 wherein the aryl group and the aralkyl group in R 3 are respectively phenyl and benzyl.
Claim 4
Dependent Claim
25 words
A photosensitive composition according to claim 1 wherein the arylene group for Y and Z is selected from a phenylene group and a naphthylene group.
Claim 5
Dependent Claim
19 words
A photosensitive composition according to claim 3 wherein the phenylene group is phenylene while the naphthylene group is naphthylene.
Claim 6
Dependent Claim
16 words
A photosensitive composition according to claim 1 wherein the alkyl group for R 1 is methyl.
Claim 7
Dependent Claim
30 words
A photosensitive composition according to claim 1 wherein the halogen for R 2 is chlorine or bromine while the alkyl for R 2 and R 3 is methyl or ethyl.
Claim 8
Dependent Claim
17 words
A photosensitive composition according to claim 1 wherein the divalent group for X is an alkylene group.
Claim 9
Dependent Claim
17 words
A photosensitive composition according to claim 7 wherein the alkylene group for X is methylene or ethylene.
Claim 10
Dependent Claim
17 words
A photosensitive composition according to claim 1 wherein the divalent group for X is selected from ##STR5##
Claim 11
Dependent Claim
31 words
A photosensitive composition according to claim 3 wherein the phenylene group for Y is cyano, methyl and/or methoxy substituted phenylene and Z is phenylene or naphthylene substituted with nitro and/or chlorine.
Claim 12
Dependent Claim
13 words
A photosensitive composition according to claim 1 wherein the composition further contains 1-azidopyrene.
Claim 13
Dependent Claim
19 words
A photosensitive composition according to claim 1 wherein the composition further contains cellulose methyl ether and/or cellulose ethyl ether.
Claim 14
Dependent Claim
16 words
A photosensitive composition according to claim 1 wherein Y is naphthalene substituted with a sulfonic acid.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |