US4148655A
Expired / Lapsed
US
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Photosensitive composition of aromatic azido compound
Assignee: New Oji Paper Co Ltd
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Filing: 1977-12-16
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Granted: 1979-04-10
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Expires: 1997-12-16
Abstract
Abstract Disclosed is an alkali-soluble photosensitive composition having an excellent stability in photosensitivity and developing property over a long storage time and a high ink-sensitivity. The composition comprises an aromatic azido compound and a novolak resin prepared by condensation polymerizing, in the presence of an acid catalyst, formaldehyde, a phenol compound of the following formula (I) and another phenol compound or compounds of the following formula (II) and/or formula (III). <IMAGE> (I) <IMAGE> (II) <IMAGE> (III) wherein, R1=H or -CH3, R2=alkyl of 3-15 carbon atoms, phenyl or cyclohexyl, and R3 and R4=alkyl of 1-3 carbon atoms.
Inventors
- 👤 Hirosi Itoh
- 👤 Yukinori Hata
- 👤 Fumio Itoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:21
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/008; G03F7/012; G03F7/0125; C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/24; C08L; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
221 words
A photosensitive composition comprising (A) at least one polymer which is soluble in an alkali aqueous solution and which has been prepared by co-condensation polymerizing, in the presence of an acid catalyst, formaldehyde with a phenol compound of the formula (I): ##STR4## wherein, R 1 represents a hydrogen atom or a methyl radical, and, at least one other phenol compound selected from those of the formulae (II) and (III): ##STR5## wherein, R 2 represents an alkyl radical having 3 to 15 carbon atoms, a phenyl radical or a cyclohexyl radical, and R 3 and R 4 represent an alkyl radical having 1 to 3 carbon atoms, respectively, the ratio by weight of the phenol compound of the formula (I) to said at least one other phenol compound selected from those of the formulae (II) and (III) being in a range of from 90:10 to 30:70, and the amount of said formaldehyde being in a range of from 50 to 90% by mole, based on the total amount of said phenol compound of the formula (I) and said at least one other phenol compounds selected from those of the formulae (II) and (III), and (B) at least one aromatic azido compound having a (--N 3 ) moiety in an amount of from 5 to 40% based on the weight of said polymer.
Claim 2
Dependent Claim
221 words
A photosensitive composition comprising (A) at least one polymer which is soluble in an alkali aqueous solution and which has been prepared by co-condensation polymerizing, in the presence of an acid catalyst, formaldehyde with a phenol compound of the formula (I): ##STR4## wherein, R 1 represents a hydrogen atom or a methyl radical, and, at least one other phenol compound selected from those of the formulae (II) and (III): ##STR5## wherein, R 2 represents an alkyl radical having 3 to 15 carbon atoms, a phenyl radical or a cyclohexyl radical, and R 3 and R 4 represent an alkyl radical having 1 to 3 carbon atoms, respectively, the ratio by weight of the phenol compound of the formula (I) to said at least one other phenol compound selected from those of the formulae (II) and (III) being in a range of from 90:10 to 30:70, and the amount of said formaldehyde being in a range of from 50 to 90% by mole, based on the total amount of said phenol compound of the formula (I) and said at least one other phenol compounds selected from those of the formulae (II) and (III), and (B) at least one aromatic azido compound having a (--N 3 ) moiety in an amount of from 5 to 40% based on the weight of said polymer.
Claim 3
Dependent Claim
21 words
A photosensitive composition as claimed in claim 1, wherein said phenol compound of the formula (I) is either phenol or cresol.
Claim 4
Dependent Claim
34 words
A photosensitive composition as claimed in claim 1, wherein said other phenol compound of the formula (II) is selected from phenylphenol, cyclohexylphenol, isopropylphenol, p-tert-butylphenol, p-n-butylphenol, p-tert-amylphenol, p-n-amylphenol, p-tert-octylphenol, p-n-octylphenol, p-nonylphenol, p-dodecylphenol, hexylphenol and m-pentadecylphenol.
Claim 5
Dependent Claim
26 words
A photosensitive composition as claimed in claim 1, wherein said other phenol compound of the formula (III) is selected from 2,4-xylenol, 3,4-xylenol, 3,5-xylenol carvacrol and thymol.
Claim 6
Dependent Claim
31 words
A photosensitive composition as claimed in claim 1, wherein said aromatic azido compound is selected from 4,4'-diazidostilbene, 4,4'-diazidochalcone, 4,4'-diazidobenzophenone, 2,6-bis(4'-azidobenzylidene)cyclohexanone, 1-azidopyrene, 1,6-diazidopyrene, 2-(4'-methoxyanilino)-5-azidobenzoic methyl ester, 2-anilino-5-azidobenzoic acid, 2-(4'-azidophenyl)-6-methyl benzothiazole and 2-(4'-azidophenyl)-(naphtho-1',2'-4,5-oxazole).
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) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |