Patent US4142894A successfully refreshed from Google Patents.
US4142894A
Expired / Lapsed
US
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Method for forming images
Assignee: Fujifilm Holdings Corp
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Filing: 1977-07-08
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Granted: 1979-03-06
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Expires: 1997-07-08
Abstract
Abstract A method for forming images which comprises processing a silver halide color photographic light-sensitive element containing in the uppermost layer thereof a matting agent composed of methyl methacrylate-methacrylic acid copolymers having a methyl methacrylate/methacrylic acid molar ratio of 6:4 to 9:1 at a temperature above about 30° C. The matting agent is capable of being dissolved into alkaline processing solutions and does not adversely affect the transparency and graininess of the images formed.
Inventors
- 👤 Kiyotaka Hori
- 👤 Takeshi Mikami
- 👤 Takushi Miyazako
- 👤 Kenji Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:41
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/95; G03C7/00; G03C7/30; G03C7/3029; G03C1/7614; G03C2001/7635; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
A method for forming images which comprises imagewise exposing and processing at a temperature above about 30° C. a coupler-containing gelatino siver-halide emulsion color photographic light-sensitive element containing in at least one of an uppermost protective surface layer and an uppermost backing layer thereof a matting agent comprising a methyl methacrylate-methacrylic acid copolymer having a methyl methacrylate to methacrylic acid molar ratio of 6:4 to 9:1, a particle size of about 0.2 to about 10μ and a molecular weight of about 10,000 to about 1,000,000.
Claim 2
Independent Claim
85 words
A method for forming images which comprises imagewise exposing and processing at a temperature above about 30° C. a coupler-containing gelatino siver-halide emulsion color photographic light-sensitive element containing in at least one of an uppermost protective surface layer and an uppermost backing layer thereof a matting agent comprising a methyl methacrylate-methacrylic acid copolymer having a methyl methacrylate to methacrylic acid molar ratio of 6:4 to 9:1, a particle size of about 0.2 to about 10μ and a molecular weight of about 10,000 to about 1,000,000.
Claim 3
Dependent Claim
29 words
The method for forming images as claimed in claim 1, wherein said copolymer is a copolymer having a methyl methacrylate to methacrylic acid molar ratio of 6:4 to 8:2.
Claim 4
Dependent Claim
24 words
The method for forming images as claimed in claim 1, wherein said processing is at a temperature of from 35° C. to 55° C.
Claim 5
Dependent Claim
26 words
The method for forming images as claimed in claim 1, wherein at least a part of the binder in said uppermost layer is an acid-processed gelatin.
Claim 6
Dependent Claim
24 words
The method for forming images as claimed in claim 1, wherein said matting agent has a particle size of about 0.5 to about 5μ.
Claim 7
Dependent Claim
45 words
The method for forming images as claimed in claim 1, wherein said uppermost layer is a protective surface layer, and said matting agent is present therein in an amount from about 50 to about 500 mg per square meter of said color photographic light-sensitive element.
Claim 8
Dependent Claim
28 words
The method for forming images as claimed in claim 1, wherein said color photographic light-sensitive element additionally contains an alkali-insoluble matting agent in combination with said matting agent.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein the copolymer has a molecular weight of about 50,000 to 200,000.
Claim 10
Independent Claim
104 words
A method for forming images which comprises imagewise exposing and processing at a temperature above about 30° C. a coupler-containing gelatino silver-halide emulsion color photographic light-sensitive element containing in at least one of an uppermost protective surface layer and an uppermost backing layer thereof a matting agent comprising a methyl methacrylate-methacrylic acid copolymer having a methyl methacrylate to methacrylic acid molar ratio of 6:4 to 9:1, a particle size of about 0.2 to about 10μ and a molecular weight of about 10,000 to about 1,000,000 said uppermost protective or backing layer contain gelatin as a binder with up to 5,000 ppm Ca 30 ion.
Claim 11
Independent Claim
104 words
A method for forming images which comprises imagewise exposing and processing at a temperature above about 30° C. a coupler-containing gelatino silver-halide emulsion color photographic light-sensitive element containing in at least one of an uppermost protective surface layer and an uppermost backing layer thereof a matting agent comprising a methyl methacrylate-methacrylic acid copolymer having a methyl methacrylate to methacrylic acid molar ratio of 6:4 to 9:1, a particle size of about 0.2 to about 10μ and a molecular weight of about 10,000 to about 1,000,000 said uppermost protective or backing layer contain gelatin as a binder with up to 5,000 ppm Ca 30 ion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |