Patent US3298597A successfully refreshed from Google Patents.
US3881935A
Expired / Lapsed
US
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Photosensitive polymer composition
Assignee: Konica Minolta Graphic Imaging USA Inc
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Filing: 1973-06-26
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Granted: 1975-05-06
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Expires: 1993-06-26
Abstract
Abstract Light-sensitive film forming polymers are disclosed which comprise recurring units of benzoate- and furoate-esterified polyvinyl alcohol as well as their utilization as photographic resist materials and printing plates for lithography.
Inventors
- 👤 Joseph E Apellaniz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:13
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08F8/14; C08F2810/00; C08F2810/30; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/118; Y10S430/124
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
33 words
A COMPOSITION CONSISTING ESSENTIALLY OF A LIGHT-SENSITIVE ORGANIC SOLVENT-SOLUBLE FILM-FORMING POLYMER CAPABLE OF FORMING A CONTINOUS COATING ON A BASE WHICH COMPRISES RECURRING UNITS OF BENZOATE- AND FUROATE-ESTERIFIED POLYVINYL ALCOHOL HAVING THE STRUCTURE:
Claim 2
Dependent Claim
33 words
A COMPOSITION CONSISTING ESSENTIALLY OF A LIGHT-SENSITIVE ORGANIC SOLVENT-SOLUBLE FILM-FORMING POLYMER CAPABLE OF FORMING A CONTINOUS COATING ON A BASE WHICH COMPRISES RECURRING UNITS OF BENZOATE- AND FUROATE-ESTERIFIED POLYVINYL ALCOHOL HAVING THE STRUCTURE:
Claim 3
Dependent Claim
20 words
A composition as claimed in claim 1 wherein said sensitizer is a cyclic compound containing one or more carbonyl groups.
Claim 4
Dependent Claim
33 words
A process for photochemically cross-linking a light-sensitive organic solvent-soluble film-forming polymer capable of forming a continuous coating on a base which comprises recurring units of benzoate- and furoate-esterified polyvinyl alcohol having the structure:
Claim 5
Dependent Claim
33 words
A process for photochemically cross-linking a light-sensitive organic solvent-soluble film-forming polymer capable of forming a continuous coating on a base which comprises recurring units of benzoate- and furoate-esterified polyvinyl alcohol having the structure:
Claim 6
Dependent Claim
19 words
A process as claimed in claim 3 wherein a sensitizer is combined with said polymer prior to light treatment.
Claim 7
Dependent Claim
20 words
A process as claimed in claim 4 wherein said sensitizer is a cyclic compound containing one or more carbonyl groups.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |