Patent US4605609A successfully refreshed from Google Patents.
US4605609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image receiving material with low calcium gelatin
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1984-08-21
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Granted: 1986-08-12
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Expires: 2004-08-21
Abstract
Abstract Disclosed is an image receiving material for silver complex diffusion transfer process which contains gelatin having a calcium content of about 1,000 ppm or less. This image receiving material provides improved silver image density. Further improvement can be attained when said gelatin has a jelly strength of 280 g or above.
Inventors
- 👤 Koji Okazaki
- 👤 Yasuo Tsubai
- 👤 Kimihisa Hamazoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:10
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/047; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
50 words
A non-photosensitive image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI.
Claim 2
Dependent Claim
50 words
A non-photosensitive image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI.
Claim 3
Dependent Claim
20 words
An image receptive material according to claim 1, wherein the calcium content of the gelatin is 500 ppm or less.
Claim 4
Dependent Claim
20 words
An image receptive material according to claim 1, wherein the gelatin content of the total binder is one-third or more.
Claim 5
Dependent Claim
20 words
An image receptive material according to claim 3, wherein the gelatin content of the total binder is two-thirds or more.
Claim 6
Dependent Claim
72 words
A silver complex diffusion transfer process which comprises imagewise exposing a photosensitive material comprising a support and a silver halide emulsion layer and developing the exposed photosensitive material in close contact with the image receptive material which comprises at least a support and an image receptive layer which contains gelatin having calcium content of about 1,000 ppm or less and contains physical development nuclei in the presence of a silver halide solvent.
Claim 7
Dependent Claim
72 words
A silver complex diffusion transfer process which comprises imagewise exposing a photosensitive material comprising a support and a silver halide emulsion layer and developing the exposed photosensitive material in close contact with the image receptive material which comprises at least a support and an image receptive layer which contains gelatin having calcium content of about 1,000 ppm or less and contains physical development nuclei in the presence of a silver halide solvent.
Claim 8
Dependent Claim
19 words
A process according to claim 5 wherein the calcium content of the gelatin is about 500 ppm or less.
Claim 9
Dependent Claim
13 words
A process according to claim 5 wherein the gelatin is a lime-treated gelatin.
Claim 10
Dependent Claim
18 words
A process according to claim 5 wherein the gelatin content of the total binder is one-third or more.
Claim 11
Dependent Claim
88 words
A silver complex diffusion transfer process which comprises imagewise exposing a photosensitive material comprising a support and a silver halide emulsion layer and developing the exposed photosensitive material in close contact with the image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI in the presence of silver halide solvent.
Claim 12
Dependent Claim
88 words
A silver complex diffusion transfer process which comprises imagewise exposing a photosensitive material comprising a support and a silver halide emulsion layer and developing the exposed photosensitive material in close contact with the image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI in the presence of silver halide solvent.
Claim 13
Dependent Claim
19 words
A process according to claim 9 wherein the calcium content of the gelatin is about 500 ppm or less.
Claim 14
Dependent Claim
13 words
A process according to claim 9 wherein the gelatin is a lime-treated gelatin.
Claim 15
Dependent Claim
18 words
A process according to claim 9 wherein the gelatin content of the total binder is one-third or more.
Claim 16
Dependent Claim
65 words
A silver complex diffusion transfer process which comprises imagewise exposing a silver halide emulsion layer which is added to the image receptive material which comprises at least a support and an image receptive layer which contains gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and developing the exposed emulsion in the presence of a silver halide solvent.
Claim 17
Dependent Claim
65 words
A silver complex diffusion transfer process which comprises imagewise exposing a silver halide emulsion layer which is added to the image receptive material which comprises at least a support and an image receptive layer which contains gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and developing the exposed emulsion in the presence of a silver halide solvent.
Claim 18
Dependent Claim
82 words
A silver halide complex diffusion transfer process which comprises imagewise exposing a silver halide emulsion layer which is added to the image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI and developing the exposed emulsion in the presence of a silver halide solvent.
Claim 19
Dependent Claim
82 words
A silver halide complex diffusion transfer process which comprises imagewise exposing a silver halide emulsion layer which is added to the image receptive material which comprises at least a support and an image receptive layer containing a gelatin having a calcium content of about 1,000 ppm or less and contains physical development nuclei and a jelly strength of 280 g or above as determined by the method of PAGI and developing the exposed emulsion in the presence of a silver halide solvent.
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) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |