US4297431A
Expired / Lapsed
US
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Diffusion control layers in diffusion transfer photographic products
Assignee: Polaroid Corp
•
Filing: 1980-03-14
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Granted: 1981-10-27
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Expires: 2000-03-14
Abstract
Abstract A diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment is disclosed for use in diffusion transfer film units, as an interlayer or overcoat in photosensitive elements, or as a timing layer or overcoat in image-receiving elements.
Inventors
- 👤 Charles I. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:23
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C8/54
Claims Analysis
Total Claims: 90
Claim 1
Independent Claim
173 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therewith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being substantially impermeable to alkali or material soluble in or solubilized by said alkaline processing composition until said β-elimination, said polymerization product comprising recurring units of the formula ##STR10## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 2
Dependent Claim
173 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therewith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being substantially impermeable to alkali or material soluble in or solubilized by said alkaline processing composition until said β-elimination, said polymerization product comprising recurring units of the formula ##STR10## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 3
Dependent Claim
47 words
The photographic diffusion transfer film unit of claim 1 wherein said photosensitive element comprises at least two silver halide emulsion layers having associated therewith a processing composition soluble and diffusible image-forming material and said diffusion control layer comprises an interlayer positioned between said silver halide emulsion layers.
Claim 4
Dependent Claim
21 words
The photographic diffusion transfer film unit of claim 1 wherein said diffusion control layer comprises an overcoat in said photosensitive element.
Claim 5
Dependent Claim
20 words
The photographic diffusion transfer film unit of claim 1 wherein said diffusion control layer is present in said image-receiving element.
Claim 6
Dependent Claim
21 words
The photographic diffusion transfer film unit of claim 4 wherein said diffusion control comprises a timing layer of said image-receiving element.
Claim 7
Dependent Claim
21 words
The photographic diffusion transfer film unit of claim 1 wherein said diffusion control layer comprises an overcoat in said image-receiving element.
Claim 8
Dependent Claim
14 words
The film unit of claim 1 wherein said image-forming material is a dye developer.
Claim 9
Dependent Claim
86 words
The film unit of claim 1 wherein said activating group is selected from the group consisting of: --SO.sub.2 W, ##STR11## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , --OC 2 H 5 , --C 6 H 5 , --NR 2 --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 ; G is phenyl, methyl or ethyl; and R is methyl or ethyl.
Claim 10
Dependent Claim
14 words
The film unit of claim 1 wherein said polymerization product comprises poly (2-cyano-ethyl acrylate).
Claim 11
Dependent Claim
14 words
The film unit of claim 1 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 12
Dependent Claim
14 words
The film unit of claim 1 wherein said polymerization product comprises poly (2-carbethoxy-ethyl methacrylate).
Claim 13
Dependent Claim
15 words
The film unit of claim 1 wherein said polymerization product further comprises a nonhydrolyzable comonomer.
Claim 14
Dependent Claim
17 words
The film unit of claim 1 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 15
Dependent Claim
161 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support, each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayed positioned between at least two of said silver halide emulsion layers, which interlayer comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment; said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination; said polymerization product comprising recurring units of the formula ##STR12## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 16
Dependent Claim
161 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support, each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayed positioned between at least two of said silver halide emulsion layers, which interlayer comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment; said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination; said polymerization product comprising recurring units of the formula ##STR12## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 17
Dependent Claim
49 words
The photosensitive element of claim 14 which comprises, in sequence, a red-sensitive silver halide layer having associated therewith a cyan dye image-forming material, a green-sensitive silver halide layer having associated therewith a magenta dye image-forming material, and a blue-sensitive silver halide having associated therewith a yellow dye image-forming material.
Claim 18
Dependent Claim
86 words
The photosensitive element of claim 14 wherein said activating group is selected from the group consisting of --SO.sub.2 W, ##STR13## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , --OC 2 H 5 , --C 6 H 5 , --NR 2 --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 , G is phenyl, methyl or ethyl; and R is methyl or ethyl.
Claim 19
Dependent Claim
14 words
The photosensitive element of claim 14 wherein said polymerization product comprises poly (2-cyano-ethyl acrylate).
Claim 20
Dependent Claim
14 words
The photosensitive element of claim 14 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 21
Dependent Claim
14 words
The photosensitive element of claim 14 wherein said polymerization product comprises poly (2-carbethoxy-ethyl methacrylate).
Claim 22
Dependent Claim
17 words
The photosensitive element of claim 14 wherein said polymerization product further comprises units of a nonhydrolyzable comonomer.
Claim 23
Dependent Claim
17 words
The photosensitive element of claim 14 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 24
Dependent Claim
147 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least a photosensitive silver halide emulsion layer coated upon said support, said emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an overcoat comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said overcoat being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination; said polymerization product comprising recurring units of the formula ##STR14## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 25
Dependent Claim
147 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least a photosensitive silver halide emulsion layer coated upon said support, said emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an overcoat comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said overcoat being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination; said polymerization product comprising recurring units of the formula ##STR14## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 26
Dependent Claim
22 words
The photosensitive element of claim 22 wherein there is coated upon said support at least two selectively sensitized silver halide emulsion layers.
Claim 27
Dependent Claim
57 words
The photosensitive element of claim 23 wherein said selectively sensitized silver halide emulsion layers comprise, in sequence, a red-sensitive silver halide layer having associated therewith a cyan dye image-forming material, a green-sensitive silver halide layer having associated therewith a magenta dye image-forming material, and a blue-sensitive silver halide layer having associated therewith a yellow dye image-forming material.
Claim 28
Dependent Claim
86 words
The photosensitive element of claim 22 wherein said activating group is selcted from the group consisting of: --SO.sub.2 W, ##STR15## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , OC 2 H 5 , --C 6 H 5 , --NR 2 --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 , G is phenyl, methyl or ethyl; and R is methyl or ethyl.
Claim 29
Dependent Claim
14 words
The photosensitive element of claim 22 wherein said polymerization product comprises poly (2-cyano-ethyl acrylate).
Claim 30
Dependent Claim
14 words
The photosensitive element of claim 22 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 31
Dependent Claim
14 words
The photosensitive element of claim 22 wherein said polymerization product comprises poly (2-carbethoxyethyl methacrylate).
Claim 32
Dependent Claim
17 words
The photosensitive element of claim 22 wherein said polymerization product further comprises units of a nonhydrolyzable comonomer.
Claim 33
Dependent Claim
17 words
The photosensitive element of claim 22 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 34
Dependent Claim
172 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support, each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a mixture of polymers, at least one of which polymers comprises a polymerization product of a monomer capable of underoging β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR16## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 35
Dependent Claim
172 words
A photosensitive element for use in diffusion transfer photographic processes comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support, each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a mixture of polymers, at least one of which polymers comprises a polymerization product of a monomer capable of underoging β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR16## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group.
Claim 36
Dependent Claim
178 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said combination comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR17## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group; and an alkaline processing composition permeable and dyeable image-receiving layer.
Claim 37
Dependent Claim
178 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said combination comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR17## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group; and an alkaline processing composition permeable and dyeable image-receiving layer.
Claim 38
Dependent Claim
67 words
The film unit of claim 32 wherein said diffusion transfer image-receiving element comprises a support layer having coated thereon said alkaline processing composition permeable and dye image-forming material dyeable image-receiving layer, said image receiving element being affixed to at least one edge of said photosensitive element and adapted to be superposed therewith so that the support layer of each element comprises the extremities of the superposed structure.
Claim 39
Dependent Claim
223 words
The film unit of claim 33 wherein said photosensitive element comprises, in sequence, a support layer; a red-sensitive silver halide layer having associated therewith a cyan dye image-forming material; an interlayer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product comprising recurring units of the formula ##STR18## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl, and Y is an activating group; and a green-sensitive silver halide layer having associated therewith a magenta dye image-forming material; a second interlayer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment; said polymerization product comprising recurring units of the formula ##STR19## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D. and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl, and Y is an activating group; and a blue-sensitive silver halide layer having associated therewith a yellow image-forming material.
Claim 40
Dependent Claim
78 words
The film unit of claim 32 wherein said activating group is selected from the group consisting of: --SO.sub.2 W, ##STR20## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 --OC 2 H 5 , --NR 2 , --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 ; G is phenyl, methyl or ethyl; and R is methyl or ethyl.
Claim 41
Dependent Claim
15 words
The film unit of claim 32 wherein the said polymerization product comprises poly (2-cyano-ethyl acrylate).
Claim 42
Dependent Claim
14 words
The film unit of claim 32 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 43
Dependent Claim
14 words
The film unit of claim 32 wherein said polymerization product comprises poly (2-carbethoxy-ethyl methacrylate).
Claim 44
Dependent Claim
16 words
The film unit of claim 32 wherein said polymerization product further comprises units of nonhydrolyzable comonomer.
Claim 45
Dependent Claim
17 words
The film unit of claim 32 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 46
Dependent Claim
190 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said combination comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a mixture of polymers at least one of which polymers comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR21## wherein R is the addition polymerization product of an ethylenically unsaturated alky group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl of phenyl, and Y is an activating group; and an alkaline processing composition permeable and dyeable image-receiving layer.
Claim 47
Dependent Claim
190 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said combination comprising: a support layer; at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material; and an interlayer positioned between at least two of said silver halide emulsion layers, which interlayer comprises a mixture of polymers at least one of which polymers comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR21## wherein R is the addition polymerization product of an ethylenically unsaturated alky group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl of phenyl, and Y is an activating group; and an alkaline processing composition permeable and dyeable image-receiving layer.
Claim 48
Dependent Claim
123 words
An image-receiving element for use in diffusion transfer photographic processes comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR22## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group, and an alkali permeable and dyeable image-receiving layer.
Claim 49
Dependent Claim
123 words
An image-receiving element for use in diffusion transfer photographic processes comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR22## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group, and an alkali permeable and dyeable image-receiving layer.
Claim 50
Dependent Claim
82 words
The image-receiving element of claim 42 wherein said activating group is selected from the group consisting of --SO.sub.2 W, ##STR23## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , --OC 2 H 5 , --NR 2 , --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 , G is phenyl, methyl or ethyl, and R is methyl or ethyl.
Claim 51
Dependent Claim
13 words
The image-receiving element of claim 42 wherein said polymerization product comprises poly(2-cyano-ethyl acrylate).
Claim 52
Dependent Claim
13 words
The image-receiving element of claim 42 wherein said polymerization product comprises poly(2-cyano-ethyl methacrylate).
Claim 53
Dependent Claim
13 words
The image-receiving element of claim 42 wherein said polymerization product comprises poly(2-carbethoxyethyl methacrylate).
Claim 54
Dependent Claim
17 words
The image-receiving element of claim 42 wherein said polymerization product further comprises units of a nonhydrolyzable comonomer.
Claim 55
Dependent Claim
17 words
The image-receiving element of claim 42 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 56
Dependent Claim
24 words
The image-receiving element of claim 42 wherein said polymeric layer comprises a timing layer positioned between said polymeric acid layer and said image-receiving layer.
Claim 57
Dependent Claim
19 words
The image-receiving element of claim 42 wherein said polymeric layer comprises an overcoat layer positioned over said image-receiving layer.
Claim 58
Dependent Claim
134 words
An image-receiving element for use in diffusion transfer photographic processing comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a mixture of polymers, at least one of which polymers comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR24## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl, and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group; and an alkali permeable and dyeable image-receiving layer.
Claim 59
Dependent Claim
134 words
An image-receiving element for use in diffusion transfer photographic processing comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a mixture of polymers, at least one of which polymers comprises a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR24## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl, and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group; and an alkali permeable and dyeable image-receiving layer.
Claim 60
Dependent Claim
82 words
The receiving element of claim 51 wherein said activating group is selected from the group consisting of: --SO.sub.2 W, ##STR25## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , --OC 2 H 5 , --NR 2 , --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 ; G is phenyl, methyl or ethyl, and R is methyl or ethyl.
Claim 61
Dependent Claim
13 words
The receiving element of claim 51 wherein said polymerization product comprises poly(2-cyano-ethyl acrylate).
Claim 62
Dependent Claim
14 words
The receiving element of claim 51 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 63
Dependent Claim
14 words
The receiving element of claim 51 wherein said polymerization product comprises poly (2-carbethoxyethyl methacrylate).
Claim 64
Dependent Claim
17 words
The receiving element of claim 51 wherein said polymerization product further comprises units of a nonhydrolyzable comonomer.
Claim 65
Dependent Claim
17 words
The receiving element of claim 51 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 66
Dependent Claim
29 words
The image-receiving element of claim 51 wherein said polymeric layer comprising said mixture of polymers comprises a timing layer positioned between said polymeric acid layer and said image-receiving layer.
Claim 67
Dependent Claim
23 words
The image-receiving element of claim 51 wherein said polymeric layer comprising said mixture of polymers comprises an overcoat positioned over said image-receiving layer.
Claim 68
Dependent Claim
132 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said image-receiving element comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR26## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group; and an alkali permeable and dyeable image-receiving layer.
Claim 69
Dependent Claim
132 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said image-receiving element comprising: a support layer, a polymeric acid layer, a polymeric layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said polymerization product being substantially impermeable to processing composition until said β-elimination occurs, said polymerization product comprising recurring units of the formula ##STR26## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms, A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E or D may be methyl or phenyl; and Y is an activating group; and an alkali permeable and dyeable image-receiving layer.
Claim 70
Dependent Claim
83 words
The photographic film unit of claim 60 wherein said activating group is selected from the group consisting of: --SO.sub.2 W, ##STR27## --CN, and --NO.sub.2 where W is --C 6 H 5 CH 3 , --CH 3 , --OC 2 H 5 , --NR 2 , --N(CH 2 C 6 H 5 ) 2 ; T is --OC 2 H 5 , --CH 3 , --H, --NH 2 , --NR 2 , G is phenyl, methyl or ethyl, and R is methyl or ethyl.
Claim 71
Dependent Claim
14 words
The film unit of claim 60 wherein said polymerization product comprises poly (2-cyano-ethyl acrylate).
Claim 72
Dependent Claim
14 words
The film unit of claim 60 wherein said polymerization product comprises poly (2-cyano-ethyl methacrylate).
Claim 73
Dependent Claim
14 words
The film unit of claim 60 wherein said polymerization product comprises poly (2-carbethoxy-ethyl methacrylate).
Claim 74
Dependent Claim
17 words
The film unit of claim 60 wherein said polymerization product further comprises units of a nonhydrolyzable comonomer.
Claim 75
Dependent Claim
17 words
The film unit of claim 60 wherein said polymerization product further comprises units of a cross-linking comonomer.
Claim 76
Dependent Claim
29 words
The photographic film unit of claim 60 wherein said polymeric layer of said image-receiving element comprises a timing layer positioned between said polymeric acid layer and said image-receiving layer.
Claim 77
Dependent Claim
23 words
The photographic film unit of claim 60 wherein said polymeric layer of said image-receiving element comprises an overcoat positioned over said image-receiving layer.
Claim 78
Dependent Claim
123 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said photosensitive element comprising: a photosensitive element support layer, at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material, and an interlayer comprising a polymerization product comprising 2-cyano-ethyl acrylate; said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until β-elimination of said polymerization product under the alkaline environment of said processing composition; and said image-receiving element comprising: an image-receiving element support; a polymeric acid layer; a polymeric layer comprising poly(2-cyano-ethyl acrylate); and an alkali permeable and dyeable image-receiving layer.
Claim 79
Dependent Claim
123 words
A photographic film unit comprising in combination a photosensitive element and a diffusion transfer image-receiving element, said photosensitive element comprising: a photosensitive element support layer, at least two selectively sensitized silver halide emulsion layers coated upon said support each emulsion layer having associated therewith a processing composition soluble and diffusible dye image-forming material, and an interlayer comprising a polymerization product comprising 2-cyano-ethyl acrylate; said interlayer being permeable to alkali but substantially impermeable to said processing composition soluble and diffusible dye image-forming material until β-elimination of said polymerization product under the alkaline environment of said processing composition; and said image-receiving element comprising: an image-receiving element support; a polymeric acid layer; a polymeric layer comprising poly(2-cyano-ethyl acrylate); and an alkali permeable and dyeable image-receiving layer.
Claim 80
Dependent Claim
169 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therewith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being permeable to alkali but substantially impermeable to said diffusible image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR28## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 81
Dependent Claim
169 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therewith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being permeable to alkali but substantially impermeable to said diffusible image-forming material until said β-elimination, said polymerization product comprising recurring units of the formula ##STR28## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 82
Dependent Claim
47 words
The photographic diffusion transfer film unit of claim 70 wherein said photosensitive element comprises at least two silver halide emulsion layers having associated therewith a processing composition soluble and diffusible image-forming material and said diffusion control layer comprises an interlayer positioned between said silver halide emulsion layers.
Claim 83
Dependent Claim
40 words
The photographic diffusion transfer film unit of claim 70 wherein said diffusion control layer comprises a mixture of polymers at least one of which polymers comprises a polymerization product of said monomer capable of undergoing β-elimination in an alkaline environment.
Claim 84
Dependent Claim
32 words
The photographic diffusion transfer film unit of claim 72 wherein said mixture of polymers comprises a matrix polymer in which is polymerized said monomer capable of undergoing β-elimination in an alkaline environment.
Claim 85
Dependent Claim
20 words
The photographic diffusion transfer film unit of claim 73 wherein said monomer polymerized in said matrix polymer comprises 2-cyano-ethyl acrylate.
Claim 86
Dependent Claim
162 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therwith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being substantially impermeable to alkali until said β-elimination, said polymerization product comprising recurring units of the formula ##STR29## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 87
Dependent Claim
162 words
A photographic diffusion transfer film unit comprising: a. a photosensitive element comprising at least a photosensitive silver halide emulsion layer having associated therwith a processing composition soluble and diffusible image-forming material; b. an image-receiving element; c. means for discharging an alkaline processing composition within said film unit; and d. a diffusion control layer in at least one of said photosensitive element or said image-receiving element; said diffusion control layer comprising a polymerization product of a monomer capable of undergoing β-elimination in an alkaline environment, said diffusion control layer being substantially impermeable to alkali until said β-elimination, said polymerization product comprising recurring units of the formula ##STR29## wherein R is the addition polymerization product of an ethylenically unsaturated alkyl group of two or three carbon atoms; A, D and E are selected from the group consisting of hydrogen, methyl and phenyl provided that no more than one of A, E, or D may be methyl or phenyl; and Y is an activating group.
Claim 88
Dependent Claim
40 words
The photographic diffusion transfer film unit of claim 75 wherein said diffusion control layer comprises a mixture of polymers at least one of which polymers comprises a polymerization product of said monomer capable of undergoing β-elimination in an alkaline environment.
Claim 89
Dependent Claim
32 words
The photographic diffusion transfer film unit of claim 76 wherein said mixture of polymers comprises a matrix polymer in which is polymerized said monomer capable of undergoing β-elimination in an alkaline environment.
Claim 90
Dependent Claim
20 words
The photographic diffusion transfer film unit of claim 77 wherein said monomer polymerized in said matrix polymer comprises 2-cyano-ethyl acrylate.
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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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |