Patent US4297470A successfully refreshed from Google Patents.
US4297470A
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Image forming process
Assignee: Fujifilm Holdings Corp
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Filing: 1974-02-04
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Granted: 1981-10-27
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Expires: 1994-02-04
Abstract
Abstract A process for forming an image comprising image-wise exposing a support having thereon a cinnamoyl group containing light-sensitive polymers containing at least 64 mol % of cinnamoyl groups is disclosed.
Inventors
- 👤 Chiaki Osada
- 👤 Masato Satomura
- 👤 Hisatake Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:29
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/30
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
156 words
A process for producing photosensitive homopolymers containing the recurring unit: ##STR11## wherein A is: ##STR12## wherein R 8 is a hydrogen atom or an alkyl group having 1 to about 6 carbon atoms, n is the integer of 1, m is an integer or from 1 to 6; R 2 is: ##STR13## R 3 and R 4 are each hydrogen: R 5 is a hydrogen atom or an alkyl group having from 1 to about 6 carbon atoms: R 6 is a hydrogen atom: X is --O-- or --NH-- R 7 is hydrogen, which process comprises preparing a mixture containing a monomer represented by the general formula: ##STR14## wherein A, X, R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are as defined above, and a polymerization initiator under an inert atmosphere; and holding said mixture under an inert atmosphere for time sufficient for the polymer to form.
Claim 2
Dependent Claim
156 words
A process for producing photosensitive homopolymers containing the recurring unit: ##STR11## wherein A is: ##STR12## wherein R 8 is a hydrogen atom or an alkyl group having 1 to about 6 carbon atoms, n is the integer of 1, m is an integer or from 1 to 6; R 2 is: ##STR13## R 3 and R 4 are each hydrogen: R 5 is a hydrogen atom or an alkyl group having from 1 to about 6 carbon atoms: R 6 is a hydrogen atom: X is --O-- or --NH-- R 7 is hydrogen, which process comprises preparing a mixture containing a monomer represented by the general formula: ##STR14## wherein A, X, R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are as defined above, and a polymerization initiator under an inert atmosphere; and holding said mixture under an inert atmosphere for time sufficient for the polymer to form.
Claim 3
Dependent Claim
19 words
A process as set forth in claim 1 wherein the mixture containing the monomer also contains an organic solvent.
Claim 4
Dependent Claim
187 words
A process for producing photosensitive copolymers containing at least about 65 mol percent of the recurring unit: ##STR15## wherein A is: ##STR16## wherein R 8 is a hydrogen atom or an alkyl group having 1 to about 6 carbon atoms, n is the integer of 1, m is an integer of from 1 to 6; R 2 is: ##STR17## R 3 and R 4 are each hydrogen; R 5 is a hydrogen atom or an alkyl group having from 1 to about 6 carbon atoms; R 6 is hydrogen; X is --O-- or --NH-- and R 7 is hydrogen, which process comprises preparing a mixture containing a monomer represented by the general formula: ##STR18## wherein A, X, R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are as defined above, a comonomer copolymerizable therewith and a polymerization initiator under an inert atmosphere, the total proportion of said comonomer not exceeding about 35 mol percent per 65 mol percent of said photosensitive monomer; and holding said mixture under an inert atmosphere for a time sufficient for the polymer to form.
Claim 5
Dependent Claim
187 words
A process for producing photosensitive copolymers containing at least about 65 mol percent of the recurring unit: ##STR15## wherein A is: ##STR16## wherein R 8 is a hydrogen atom or an alkyl group having 1 to about 6 carbon atoms, n is the integer of 1, m is an integer of from 1 to 6; R 2 is: ##STR17## R 3 and R 4 are each hydrogen; R 5 is a hydrogen atom or an alkyl group having from 1 to about 6 carbon atoms; R 6 is hydrogen; X is --O-- or --NH-- and R 7 is hydrogen, which process comprises preparing a mixture containing a monomer represented by the general formula: ##STR18## wherein A, X, R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are as defined above, a comonomer copolymerizable therewith and a polymerization initiator under an inert atmosphere, the total proportion of said comonomer not exceeding about 35 mol percent per 65 mol percent of said photosensitive monomer; and holding said mixture under an inert atmosphere for a time sufficient for the polymer to form.
Claim 6
Dependent Claim
19 words
A process as set forth in claim 3 wherein the mixture containing the monomer also contains an organic solvent.
References Cited (Backward Citations)
US3486932A
Cited
US3867318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |