US4301238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the manufacture of silver halide photographic material
Assignee: Konica Minolta Inc
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Filing: 1980-07-21
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Granted: 1981-11-17
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Expires: 2000-07-21
Abstract
Abstract An improved method of producing a silver halide photographic material having a layer containing gelatin coated on a support is disclosed. The coated layer is dried so that its surface temperature during the falling rate drying period is more than 5° C. over the melting point of the layer during drying and the jelly strength of the gelatin is at least 200 g according to the PAGI method.
Inventors
- 👤 Sadayuki Miyazawa
- 👤 Takashi Kadowaki
- 👤 Isao Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; G03C1/74; G03C2001/7451; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
In a method for the manufacturing of a silver halide photographic material having a layer containing gelatin coated on a support, the improvement which comprises drying the coated layer so that the surface temperature of the layer during the falling rate drying period is more than 5° C. above the melting point of the layer during drying and the jelly strength of said gelatin being at least 200 g according to the PAGI method.
Claim 2
Dependent Claim
74 words
In a method for the manufacturing of a silver halide photographic material having a layer containing gelatin coated on a support, the improvement which comprises drying the coated layer so that the surface temperature of the layer during the falling rate drying period is more than 5° C. above the melting point of the layer during drying and the jelly strength of said gelatin being at least 200 g according to the PAGI method.
Claim 3
Dependent Claim
48 words
A method according to claim 1 wherein the coated layer is dried so that the surface temperature of the layer in a constant rate drying period is lower than a temperature of 5 centigrade plus a melting point of the layer at a time of passage of drying.
Claim 4
Dependent Claim
14 words
A method according to claim 1 wherein the layer containing gelatin contains a hardener.
Claim 5
Dependent Claim
25 words
A method according to claim 1 wherein the surface temperature of the layer is higher than a temperature of 5-80 centigrade plus the melting point.
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) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |