US4680247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic processing composition with poly(diacetone acrylamide) oxime and styrene-butadiene latex
Assignee: Polaroid Corp
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Filing: 1986-03-31
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Granted: 1987-07-14
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Expires: 2006-03-31
Abstract
Abstract Photographic processing compositions containing a light-reflecting pigment and a styrene-butadiene copolymer are disclosed. The photographic processing compositions are useful in photographic diffusion transfer film units and processes for the provision of permanent photographic laminates. A light-reflecting layer formed in a photographic laminate from such a processing composition exhibits a reduced tendency toward cohesion or adhesion failure and separation.
Inventors
- 👤 Richard J. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:54
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/32; G03C8/36; G03C8/38
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
A photographic processing composition comprising an aqueous alkaline medium having therein: a polymeric oxime viscosity-increasing agent comprising recurring units of the formula ##STR13## said polymeric oxime viscosity-increasing agent being present in an amount in the range of about 0.5% to about 1% by weight of the composition; a light-reflecting pigment; and a carboxylated styrene-butadiene latex, said carboxylated styrene-butadiene latex being present in an amount in the range of about 1.5% to about 3% by weight of the composition.
Claim 2
Dependent Claim
78 words
A photographic processing composition comprising an aqueous alkaline medium having therein: a polymeric oxime viscosity-increasing agent comprising recurring units of the formula ##STR13## said polymeric oxime viscosity-increasing agent being present in an amount in the range of about 0.5% to about 1% by weight of the composition; a light-reflecting pigment; and a carboxylated styrene-butadiene latex, said carboxylated styrene-butadiene latex being present in an amount in the range of about 1.5% to about 3% by weight of the composition.
Claim 3
Dependent Claim
30 words
The photographic processing composition of claim 1 wherein said light-reflecting pigment is present in an amount in the range of about 35% to about 60% by weight of the composition.
Claim 4
Dependent Claim
14 words
The photographic processing composition of claim 2 wherein said light-reflecting pigment is titanium dioxide.
Claim 5
Dependent Claim
187 words
A photographic product for forming a diffusion transfer image within a permanent laminate comprising, in combination, a first support carrying at least one photosensitive silver emulsion layer, each said silver halide emulsion having associated therewith an image-forming material; a second support carrying an image-receining layer; and a photographic processing composition adapted to be distributed between the silver halide layer or layers and the image-receiving layer and effective to develop the silver halide emulsion or emulsions after photoexposure and form a transfer image in said image-receiving layer and effective to mask the developed silver halide layer or layers and provide a light-reflecting background for the viewing of said transfer image, said photographic processing composition comprising an aqueous alkaline medium having therein: a polymeric oxime viscosity-increasing agent comprising recurring units of the formula ##STR14## said polymeric oxime viscosity-increasing agent being present in an amount in the range of about 0.5% to about 1% by weight of the composition; a light-reflecting pigment; and a carboxylated styrene-butadiene latex, said carboxylated styrene-butadiene latex being present in an amount in the range of about 1.5% to about 3% by weight of the composition.
Claim 6
Dependent Claim
187 words
A photographic product for forming a diffusion transfer image within a permanent laminate comprising, in combination, a first support carrying at least one photosensitive silver emulsion layer, each said silver halide emulsion having associated therewith an image-forming material; a second support carrying an image-receining layer; and a photographic processing composition adapted to be distributed between the silver halide layer or layers and the image-receiving layer and effective to develop the silver halide emulsion or emulsions after photoexposure and form a transfer image in said image-receiving layer and effective to mask the developed silver halide layer or layers and provide a light-reflecting background for the viewing of said transfer image, said photographic processing composition comprising an aqueous alkaline medium having therein: a polymeric oxime viscosity-increasing agent comprising recurring units of the formula ##STR14## said polymeric oxime viscosity-increasing agent being present in an amount in the range of about 0.5% to about 1% by weight of the composition; a light-reflecting pigment; and a carboxylated styrene-butadiene latex, said carboxylated styrene-butadiene latex being present in an amount in the range of about 1.5% to about 3% by weight of the composition.
Claim 7
Dependent Claim
35 words
The photographic product of claim 4 wherein said photographic processing composition is present in a rupturable container positioned to distribute said processing composition between said image-receiving layer and said silver halide emulsion layer or layers.
Claim 8
Dependent Claim
33 words
The photographic product of claim 4 wherein said light-reflecting pigment is present in said processing composition in an amount in the range of about 35% to about 60% by weight of the composition.
Claim 9
Dependent Claim
19 words
The photographic product of claim 4 wherein said support carrying said image-receiving layer is a sheet of polyethylene terephthalate.
Claim 10
Dependent Claim
20 words
The photographic product of claim 4 wherein each of said first and second supports is a sheet of polyethylene terephthalate.
Claim 11
Dependent Claim
13 words
The photographic product of claim 6 wherein said light-reflecting pigment comprises titanium dioxide.
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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) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |