US4859561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer sheet useful in providing transparencies or reproductions having a controlled gloss finish
Assignee: Eastman Kodak Co
•
Filing: 1987-07-14
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Granted: 1989-08-22
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Expires: 2007-07-14
Abstract
Abstract A developer sheet useful in forming reproductions which have a controllable gloss finish or in forming transparencies comprising a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure. The developer sheet comprising a support having a layer of a finely divided thermoplastic developer material on the surface thereof can additionally comprise oil-containing microcapsules such that upon microcapsule rupture, the oil plasticizes the developer material.
Inventors
- 👤 George D. Metz
- 👤 Carl McCrary
- 👤 Joseph G. O'Connor
- 👤 Paul C. Adair
- 👤 D. Scott Proehl
- 👤 Edward J. Saccocio
- 👤 James Dowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/36; G03F; G03F7/00; G03F7/002; G03C1/002; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
81 words
A process for forming images which comprises image-wise transferring a color precursor to the reactive surface of a developer sheet consisting essentially of a support and a layer of a finely divided thermoplastic developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure; and coalescing said developer material.
Claim 2
Dependent Claim
81 words
A process for forming images which comprises image-wise transferring a color precursor to the reactive surface of a developer sheet consisting essentially of a support and a layer of a finely divided thermoplastic developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure; and coalescing said developer material.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein said step of coalescing said developer material substantially completely coalesces said developer material.
Claim 4
Dependent Claim
19 words
The process of claim 1 wherein said step of coalescing said developer material only partially coalesces said developer material.
Claim 5
Dependent Claim
94 words
The process of claim 1 wherein said step of image-wise transferring said color precursor includes the steps of image-wise exposing to actinic radiation an imaging sheet incuding a support having a layer of microcapsules on the surface thereof, said microcapsules including a photohardenable or photosoftenable photosensitive composition as the internal phase and having a chromogenic material associated therewith; assembling said image-wise exposed imaging sheet with a developer sheet; and subjecting said imaging sheet to a uniform rupturing force such that said microcapsules rupture and release said internal phase in accordance with said image-wise exposure.
Claim 6
Dependent Claim
17 words
The process of claim 1 wherein said developer material has a softening point less than 200° C.
Claim 7
Dependent Claim
19 words
The process of claim 5 wherein said developer material has a particle size of about 0.5 to 25 microns.
Claim 8
Dependent Claim
13 words
The process of claim 6 wherein said developer material is a phenol-formaldehyde resin.
Claim 9
Dependent Claim
14 words
The process of claim 7 wherein said developer material is an alkylphenol-formaldehyde developer resin.
Claim 10
Dependent Claim
11 words
The process of claim 8 wherein said phenol-formaldehyde resin is metallated.
Claim 11
Dependent Claim
21 words
The process of claim 5 wherein said step of coalescing said developer sheet includes subjecting said sheet to heat or pressure.
Claim 12
Dependent Claim
13 words
The process of claim 9 wherein said resin is a phenol-salicylic acid-formaldehyde resin.
Claim 13
Dependent Claim
10 words
The process of claim 1 wherein said support is paper.
Claim 14
Dependent Claim
12 words
The process of claim 1 wherein said support is a transparent film.
Claim 15
Dependent Claim
19 words
The process of claim 6 wherein said developer material is a metallated condensation product of a phenol and formaldehyde.
Claim 16
Dependent Claim
21 words
The process of claim 14 wherein said developer material is a condensation product of a phenol, formaldehyde and a salicylic acid.
Claim 17
Dependent Claim
20 words
The process of claim 6 wherein said developer material is a product of oxidative coupling of a phenol or biphenol.
Claim 18
Dependent Claim
10 words
The process of claim 16 wherein said biphenol is bisphenol-A.
Claim 19
Dependent Claim
83 words
The process of claim 4 wherein said developer sheet consisting essentially of said support and said layer of a finely divided thermoplastic developer material on the surface thereof additionally includes microcapsules containing an oil which is capable of plasticizing said developer material such that upon assemblying said image-wise exposed imaging sheet with said developer sheet and subjecting said imaging sheet to a uniform rupturing fore, said microscapsules containing said oil are ruptured so that said oil is released and plasticizes said developer materials.
Claim 20
Dependent Claim
77 words
The process of claim 4 wherein said imaging sheet including said support having said layer of photosensitive microcapsules on the surface thereof additionally includes microcapsules containing an oil which is capable of plasticizing said developer material such that upon assembling said image-wise exposed imaging sheet with a developer sheet and subjecting said imaging sheet to a uniform rupturing force, said microcapsules containing said oil are ruptured so that said oil is released and plasticizes said developer material.
Claim 21
Dependent Claim
133 words
A process for forming images which comprises image-wise exposing to actinic radiation a photosensitive material consisting essentially of a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable or reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which upon application of heat and/or pressure; and a layer of microscapsules overlying said layer of developer material, said microcapsules containing a photosensitive composition which changes in viscosity in response to exposure to actinic radiation and a color precursor; subjecting said layer of microcapsules to a uniform rupturing force such that said color precursor is image-wise released from said microcapsules to said developer material whereupon an image is formed; and coalescing said developer material.
Claim 22
Dependent Claim
133 words
A process for forming images which comprises image-wise exposing to actinic radiation a photosensitive material consisting essentially of a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable or reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which upon application of heat and/or pressure; and a layer of microscapsules overlying said layer of developer material, said microcapsules containing a photosensitive composition which changes in viscosity in response to exposure to actinic radiation and a color precursor; subjecting said layer of microcapsules to a uniform rupturing force such that said color precursor is image-wise released from said microcapsules to said developer material whereupon an image is formed; and coalescing said developer material.
Claim 23
Dependent Claim
22 words
The process of claim 20 wherein said support is a transparent film such that said image may be viewed through said support.
Claim 24
Dependent Claim
42 words
The process of claim 21 comprising the additional step of assembling said photosensitive material with a material which provides a white background such that said layer of said microcapsules is interposed between said transparent substrate and said material providing said white background.
Claim 25
Dependent Claim
21 words
The process of claim 20 wherein said developer resin is a phenolic resin having a softening point less than 200° C.
Claim 26
Dependent Claim
30 words
The process of claim 23 wherein said developer material is a condensation product of a phenol, formaldehyde and a salicyclic acid or a product of oxidative coupling of a phenol.
Claim 27
Dependent Claim
16 words
The process of claim 20 wherein said images are microfiche or microfilm images requiring high resolution.
Claim 28
Dependent Claim
62 words
The process of claim 20 wherein said layer of said finely divided thermoplastic developer material consists of said thermoplastic developer material, an admixture of said thermoplastic developer material and a thermoplastic latex, or an admixture of said thermoplastic developer material and a binder having a refractive index which closely approximates or is equal to that of said thermoplastic developer material when melted.
Claim 29
Dependent Claim
38 words
The process of claim 21 wherein said photosensitive material additionally includes a layer of paper overlying said layer of microcapsules such that said microcapsules are interposed between said layer of paper and said layer of said developer material.
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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) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |