US4965166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicolor recording material
Assignee: Fujifilm Holdings Corp
•
Filing: 1989-03-02
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Granted: 1990-10-23
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Expires: 2009-03-02
Abstract
Abstract A multicolor recording material having on one side of a support at least two layers capable of producing colors different from each other in hue through respective color-producing reactions, which further has an interlayer constituted by a water-soluble polyanionic polymer having gelled through the interaction with a polycation between every adjacent two of said color-producing layers to prevent migration of ingredients from one color-producing layer to another.
Inventors
- 👤 Noriyuki Hosoi
- 👤 Toshimasa Usami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:58
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
A multicolor recording material which comprises a support having on one side thereof at least two color-producing recording layers capable of producing colors different from each other in hue through corresponding color-producing reactions, every adjacent two of said color-producing recording layers having therebetween an interlayer comprising of a water-soluble polyanionic polymer having gelled through the interaction with polycation.
Claim 2
Dependent Claim
58 words
A multicolor recording material which comprises a support having on one side thereof at least two color-producing recording layers capable of producing colors different from each other in hue through corresponding color-producing reactions, every adjacent two of said color-producing recording layers having therebetween an interlayer comprising of a water-soluble polyanionic polymer having gelled through the interaction with polycation.
Claim 3
Dependent Claim
31 words
A multicolor recording material as claimed in claim 1, at least one layer out of said color-producing recording layers contains both of a diazo compound and a coupler as color-producing ingredients.
Claim 4
Dependent Claim
17 words
A multicolor recording material as claimed in claim 2, wherein said diazo compound is contained in microcapsule.
Claim 5
Dependent Claim
33 words
A multicolor recording material as claimed in claim 1, at least one layer out of said color-producing recording layers contains both of an electron donating dye precursor and a developer as color-producing ingredients.
Claim 6
Dependent Claim
19 words
A multicolor recording material as claimed in claim 4, wherein said electron donating dye precursor is contained in microcapsule.
Claim 7
Dependent Claim
14 words
A multicolor recording material as claimed in claim 1, wherein said support is transparent.
Claim 8
Dependent Claim
37 words
A multicolor recording material as claimed in claim 6, wherein at least one color-produced recording layer capable of producing color different from any other layer in hue is further provided on another side of said transparent support.
Claim 9
Dependent Claim
29 words
A multicolor recording material as claimed in claim 7, wherein Haze % of all color-producing recording layers except one of outer most color-producing recording layer are less than 60%.
Claim 10
Dependent Claim
51 words
A multicolor recording material as claimed in claim 8, wheein a transparent protective layer is provided on the outer most color-producing recording layer having Haze % of less than 60% and an opaque protective layer is provided on the outer most color-producing recording layer having Haze % of more than 60%.
Claim 11
Dependent Claim
21 words
A multicolor recording material as claimed in claim 7, wherein Haze % of all color-producing recording layers are less than 60%.
Claim 12
Dependent Claim
37 words
A multicolor recording material as claimed in claim 10, wherein a transparent protective layer is provided on one outer most color-producing recording layer and an opaque protective layer is provided on another outer most color-producing recording layer.
Claim 13
Dependent Claim
22 words
A multicolor recording material as claimed in claim 10, wherein transparent protective layers are provided on both outer most color-producing recording layers.
Claim 14
Dependent Claim
26 words
A multicolor recording material as claimed in claim 1, wherein said interlayer contains an ion complex of a water-soluble polyanionic polymer and a water-soluble polycationic polymer.
References Cited (Backward Citations)
US3615566A
Cited
US3843384A
Cited
US4599630A
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US4644376A
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US4613878A
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US4760048A
Cited
US4665410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |