Patent EP0260129A2 successfully refreshed from Google Patents.
EP0260129A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process useful in providing transparencies or reproductions having a controlled gloss finish
Assignee: Mead Corp
•
Filing: 1987-09-09
•
Granted: —
•
Expires: 2007-09-09
Abstract
Abstract Material and processes useful in providing visible images through reaction with a colour precursor and useful in providing transparencies or in providing reproductions with a controlled degree of gloss are described. A developer sheet material useful in forming reproductions having a controllable gloss finish, or in forming transparencies has a support with a layer of a finely divided, thermoplastic, developer material on its surface. The developer material is capable of reacting with a colour precursor to produce a visible image and is also capable of coalescing into a thin film which imparts gloss to the image upon application of heat and/or pressure. Photosensitive material in which images are formed by reaction of one or more chomogenic materials and a developer, in addition to the support and the developer material has a layer of microcapsules overlying the layer of developer material. The microcapsules contain a photosensitive composition which undergoes a change in viscosity upon exposure to actinic radiation and a colour precursor.
Inventors
- 👤 George D. Metz
- 👤 Joseph G. O'connor
- 👤 Carl Mccrary
- 👤 Paul C. Adair
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:45
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
72 words
Developer sheet material useful in forming reproductions having a controllable gloss finish, or in forming transparencies, characterised in 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 colour 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.
Claim 2
Dependent Claim
72 words
Developer sheet material useful in forming reproductions having a controllable gloss finish, or in forming transparencies, characterised in 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 colour 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.
Claim 3
Dependent Claim
109 words
Photosensitive material in which images are formed by reaction of one or more chromogenic materials and a developer, characterised in that said material comprises 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 colour 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 a layer of microcapsules overlying said layer of developer material, said microcapsules containing a photosensitive composition which undergoes a change in viscosity upon exposure to actinic radiation and a colour precursor.
Claim 4
Dependent Claim
109 words
Photosensitive material in which images are formed by reaction of one or more chromogenic materials and a developer, characterised in that said material comprises 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 colour 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 a layer of microcapsules overlying said layer of developer material, said microcapsules containing a photosensitive composition which undergoes a change in viscosity upon exposure to actinic radiation and a colour precursor.
Claim 5
Dependent Claim
21 words
Material according to Claims l or 2,further characterised in that said developer material is a phenolic resin, preferable a phenol-formaldehyde resin.
Claim 6
Dependent Claim
23 words
Material according to any preceding claim, further characterised in that said developer material has a particle size of about 0.5 to 25 microns.
Claim 7
Dependent Claim
20 words
Material according to any preceding claim, further characterised in that said developer material has a softening point less than 200°C.
Claim 8
Dependent Claim
20 words
Material according to Claim 5, further characterised in that said developer material is an alkylphenol-formaldehyde resin, preferably metallated alkylphenol-formaldehyde resin.
Claim 9
Dependent Claim
34 words
Material according to Claim 5, further characterised in that said developer material is a metallated condesation product of a phenol and formaldehyde, or a condensation product of a phenol, formaldehyde and a salicylic acid.
Claim 10
Dependent Claim
23 words
Material according to Claim 5, further characterised in that said developer material is a product of oxidative coupling of a phenol or biphenol.
Claim 11
Dependent Claim
15 words
Material according to Claim 8, further characterised in that said phenol or biphenol is bisphenol-A.
Claim 12
Dependent Claim
16 words
l0. Material according to any preceding claim, wherein said support is paper or a transparent film.
Claim 13
Dependent Claim
32 words
Material according to any preceding claim, further characterised in that said layer of finely divided, thermoplastic developer material additionally comprises oil-containing microcapsules, said microencapsulated oil being capable of plasticizing said developer material.
Claim 14
Dependent Claim
79 words
A process for forming images which comprises image-wise transferring a colour precursor to the reactive surface of developer sheet material comprising 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 colour 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 15
Dependent Claim
79 words
A process for forming images which comprises image-wise transferring a colour precursor to the reactive surface of developer sheet material comprising 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 colour 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 16
Dependent Claim
44 words
A process for forming images which comprises image-wise transferring a colour precursor to the reactive surface of developer sheet material according to Claim l or any claim appendent thereto, and coalescing said developer material into a thin film which imparts gloss to said image.
Claim 17
Dependent Claim
22 words
A process according to Claims l2 or l3, wherein said step of coalescing said developer material substantially completely coalesces said developer material.
Claim 18
Dependent Claim
22 words
A process according to Claims l2 or l3, wherein said step of coalescing said developer material only partially coalesces said developer material.
Claim 19
Dependent Claim
100 words
A process according to any of Claims l2 to l5, wherein said step of image-wise transferring said colour precursor includes the steps of image-wise exposing to actinic radiation an imaging sheet including 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 said developer sheet material; 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 20
Dependent Claim
64 words
A process according to Claim l6, wherein said developer sheet material comprises developed sheet material according to Claim l or any claim appendent thereto such that upon assembling said image-wise exposed imaging sheet with said developer sheet material and subjecting said imaging sheet to a uniform rupturing force, said oil-containing microcapsules are ruptured so that said oil is released and plasticizes said developer material.
Claim 21
Dependent Claim
54 words
A process according to Claim l6, wherein said imaging sheet additionally comprises oil-containing microcapsules such that upon assembling said image-wise exposed imaging sheet with said developer sheet material and subjecting said imaging sheet to a uniform rupturing force, said oil-containing microcapsules are ruptured so that said oil is released and plasticizes said developer material.
Claim 22
Dependent Claim
112 words
Photosensitive imaging material comprising: a donor sheet including a support having a layer of microcapsules on the surface thereof, said microcapsules containing a photohardenable or photosoftenable composition and having a colour precursor associated therewith; and a receiver sheet therefor; useful in forming reproductions having a controllable gloss finish or in forming transparencies; characterised in that the receiver sheet comprises 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 colour 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.
Claim 23
Dependent Claim
112 words
Photosensitive imaging material comprising: a donor sheet including a support having a layer of microcapsules on the surface thereof, said microcapsules containing a photohardenable or photosoftenable composition and having a colour precursor associated therewith; and a receiver sheet therefor; useful in forming reproductions having a controllable gloss finish or in forming transparencies; characterised in that the receiver sheet comprises 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 colour 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.
Claim 24
Dependent Claim
71 words
Photosensitive imaging material comprising: a donor sheet including a support having a layer of microcapsules on the surface thereof, said microcapsules containing a photohardenable or photosoftenable composition and having a colour precursor associated therewith; and a receiver sheet therefor; useful in forming reproductions having a controllable gloss finish or in forming transparencies; characterised in that the receiver sheet comprises developer sheet material according to Claim l or any claim appendent thereto.
Claim 25
Dependent Claim
126 words
2l. A process for forming images which comprises image-wise exposing to actinic radiation a photosensitive material 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 colour precursor to produce a visible image and being capable of coalescing into a thin film upon application of heat and/or pressure; and a layer of microcapsules 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 colour precursor; subjecting said layer of microcapsules to a uniform rupturing force such that said colour precursor is image-wise released from said microcapsules to said developer material; and coalescing said developer material.
Claim 26
Dependent Claim
126 words
2l. A process for forming images which comprises image-wise exposing to actinic radiation a photosensitive material 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 colour precursor to produce a visible image and being capable of coalescing into a thin film upon application of heat and/or pressure; and a layer of microcapsules 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 colour precursor; subjecting said layer of microcapsules to a uniform rupturing force such that said colour precursor is image-wise released from said microcapsules to said developer material; and coalescing said developer material.
Claim 27
Dependent Claim
53 words
A process for forming images which comprises image-wise exposing to actinic radiation photosensitive material according to Claim 2 or any claim appendent thereto; subjecting said layer of microcapsules to a uniform rupturing force such that said colour precursor is image-wise released from said microcapsules to said developer material; and coalescing said developer material.
Claim 28
Dependent Claim
44 words
A process according to Claims 2l or 22, comprising the additional step of assembling said photosensitive material with a material which provides a white background such that said layer of microcapsules is interposed between said transparent substrate and said material providing said white background.
Claim 29
Dependent Claim
24 words
A process according to Claims 2l or 22, wherein said support is transparent and said images are microfiche or microfilm images requiring high resolution.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.