Patent US4446218A successfully refreshed from Google Patents.
US4446218A
Expired / Lapsed
US
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Sulfur and/or amide-containing exposure accelerators for light-sensitive coatings with diazonium compounds
Assignee: CNA Holdings LLC
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Filing: 1982-03-18
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Granted: 1984-05-01
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Expires: 2002-03-18
Abstract
Abstract This invention relates to proof film-type light sensitive diazonium materials containing accelerators selected from sulfur and/or amide-containing compounds which are capable of accelerating the contact exposure of negative-working diazonium compounds when such diazonium compounds are subjected to UV radiation. These accelerators enhance essentially photosensitivity speed. The invention also relates to presensitized reproduction materials comprising diazonium materials containing these accelerators.
Inventors
- 👤 Major S. Dhillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:28
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/10; G03F7/00; G03F7/004; G03F7/016; G03F7/0166
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
102 words
A composition comprising a light sensitive diazonium compound and an accelerator selected from the group consisting of 1,1-thiobis(2-naphthol), diresorcinol sulfide, diphenyl sulfone, phenothiazine, dibenzothiophene sulfone, N-(3-hydroxyphenyl)-2-hydroxy-3-naphthamide, 2,3-dihydroxy naphthoic acid ethanolamide, N,N'-ethylene-bis-acetoacetamide, 4-bromo-3,5-resorcyclic acid ethanolamide, 3,5-resorcyclic acid ethanolamide 2,4-resorcyclic acid ethanol amide, acetoacetbenzylamide, 2-mercaptobenzothiazole, and 2-benzoxazolethiol, wherein said diazonium compound is selected from the group consisting of the condensation products of Formula I, Formula II and Formula IV as set forth herein such that said accelerator is present in said composition in an amount from about 0.005 to about 1.5 parts by weight of accelerator per part by weight of said diazonium compound.
Claim 2
Dependent Claim
102 words
A composition comprising a light sensitive diazonium compound and an accelerator selected from the group consisting of 1,1-thiobis(2-naphthol), diresorcinol sulfide, diphenyl sulfone, phenothiazine, dibenzothiophene sulfone, N-(3-hydroxyphenyl)-2-hydroxy-3-naphthamide, 2,3-dihydroxy naphthoic acid ethanolamide, N,N'-ethylene-bis-acetoacetamide, 4-bromo-3,5-resorcyclic acid ethanolamide, 3,5-resorcyclic acid ethanolamide 2,4-resorcyclic acid ethanol amide, acetoacetbenzylamide, 2-mercaptobenzothiazole, and 2-benzoxazolethiol, wherein said diazonium compound is selected from the group consisting of the condensation products of Formula I, Formula II and Formula IV as set forth herein such that said accelerator is present in said composition in an amount from about 0.005 to about 1.5 parts by weight of accelerator per part by weight of said diazonium compound.
Claim 3
Dependent Claim
40 words
The composition of claim 1 wherein said accelerator is selected from the group consisting of 1,1-thiobis(2-naphthol), diresorcinol sulfide, phenothiazine, dibenzothiophene sulfone, N-(3-hydroxyphenyl)-2-hydroxy-3-naphthamide, 2,3-dihydroxy naphthoic acid ethanolamide, N,N'-ethylene-bis-acetoacetamide, 4-bromo-3,5-resorcyclic acid amide, 3,5-resorcyclic acid ethanolamide, 2,4-resorcyclic acid ethanolamide, acetoacetbenzylamide, 2-mercaptobenzothiazole, and 2-benzoxathiazolethiol.
Claim 4
Dependent Claim
19 words
A light sensitive reproduction material comprising a support and a reproduction layer thereon having the composition of claim 1.
Claim 5
Dependent Claim
36 words
The reproduction material of claim 3 wherein said support is selected from the group of supports which are comprised of aluminum, polyester, polystyrene, polyamide, polycarbonate, polypropylene, cellulose acetate films, glass, metal coated material and the like.
Claim 6
Dependent Claim
34 words
The reproduction material of claim 4 wherein said reproduction layer contains the accelerator which is present at a level of about 0.005 to about 1.5 by weight per part by weight of diazonium compound.
Claim 7
Dependent Claim
10 words
The composition of claim 1 wherein said accelerator is phenothiazine.
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein said accelerator is 1,1-thiobis(2-naphthol).
Claim 9
Dependent Claim
10 words
The composition of claim 1 wherein said accelerator is 2-mercaptobenzothiazol.
Claim 10
Dependent Claim
14 words
The composition of claim 1 wherein said accelerator is 3,5 resorcylic acid ethanol amide.
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein said diazonium compound is the condensation product of Formula I as set forth herein.
Claim 12
Dependent Claim
20 words
The composition of claim 1 wherein said diazonium compound is the condensation product of Formula II as set forth herein.
Claim 13
Dependent Claim
20 words
The composition of claim 1 wherein said diazonium compound is the condensation product of Formula IV as set forth herein.
Claim 14
Dependent Claim
20 words
The composition of claim 6 wherein said diazonium compound is the condensation product of Formula IV as set forth herein.
Claim 15
Dependent Claim
20 words
The composition of claim 7 wherein said diazonium compound is the condensation product of Formula IV as set forth herein.
Claim 16
Dependent Claim
20 words
The composition of claim 8 wherein said diazonium compound is the condensation product of Formula IV as set forth herein.
Claim 17
Dependent Claim
20 words
The composition of claim 9 wherein said diazonium compound is the condensation product of Formula IV as set forth herein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |