US4050940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of a photographic material
Assignee: Konica Minolta Inc
•
Filing: 1976-03-10
•
Granted: 1977-09-27
•
Expires: 1996-03-10
Abstract
Abstract A process for improving the coating of photographic materials by substantially removing coating irregularities and applying more uniform coatings is described.
Inventors
- 👤 Teiji Habu
- 👤 Masao Ishihara
- 👤 Eiichi Sakamoto
- 👤 Hiroshi Yamada
- 👤 Masaaki Kaneshige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38; G03C1/385; Y; Y10; Y10S; Y10S430/00; Y10S430/136; Y10S430/162
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A process for the preparaton of a gelatin-silver halide photographic layer thereon which comprises forming the layer by coating with a coating solution which contains a compound represented by the following formula: ##STR17## wherein R is hydrogen or methyl, 1 is an integer of 2 to 10 inclusive, m is an integer of 0 to 50 inclusive, and n is an integer of 0 to 50 inclusive, provided that when n is 1, R is methyl, and further provided that both m and n are not 0 simultaneously.
Claim 2
Dependent Claim
88 words
A process for the preparaton of a gelatin-silver halide photographic layer thereon which comprises forming the layer by coating with a coating solution which contains a compound represented by the following formula: ##STR17## wherein R is hydrogen or methyl, 1 is an integer of 2 to 10 inclusive, m is an integer of 0 to 50 inclusive, and n is an integer of 0 to 50 inclusive, provided that when n is 1, R is methyl, and further provided that both m and n are not 0 simultaneously.
Claim 3
Dependent Claim
30 words
A process for the preparation of a gelatin-silver halide photographic material according to claim 1 wherein the layer is a photosensitive emulsion layer containing silver halide or a protective layer.
Claim 4
Dependent Claim
49 words
A process for the preparation of a gelatin-silver halide photographic material according to claim 1 wherein the compound is represented by the following formulas: H(CF.sub.2 CF.sub.2).sub.p CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.q H or ##STR18## wherein p is 2 or 3 and q is an integer of 5 to 20 inclusive.
Claim 5
Dependent Claim
35 words
A process for the preparation of a gelatin-silver halide photographic material according to claim 3 wherein the compound is selected from the group consisting of: H(CF.sub.2 CF.sub.2).sub.3 CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.5 H and ##STR19## .
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |