Patent US4873167A successfully refreshed from Google Patents.
US4873167A
Expired / Lapsed
US
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Self cleaning sheet for dissolving a photo-sensitive material containing microcapsules on both sides of substrate
Assignee: Brother Industries Ltd
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Filing: 1988-03-08
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Granted: 1989-10-10
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Expires: 2008-03-08
Abstract
Abstract The disclosed is a cleaning sheet comprising second microcapsules, which encapsulate a solvent dissolvable of a photo-curable material, so that any radiation curable material sticking to a surface of a pressure roller member of a transfer imaging system will be efficiently cleaned away, thereby maintaining a constantly smooth surface of the pressure member which can then apply pressure onto the photo-pressure sensitive sheet uniformly, resulting in a unblemished transmittance of the original image.
Inventors
- 👤 Yuji Asano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:43
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/002; G03B; G03B2227/00; G03B2227/32; G03B2227/325
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
49 words
A self cleaning sheet comprising: a sheet of substrate; and microcapsules enveloping a solvent of a photo-curable material and being coated on said sheet of substrate, said solvent selected from the group consisting of isopropyl alcohol, butanol, ethyl alcohol, propyl alcohol, methyl alcohol, acetone, ethyl ketone and methyl ketone.
Claim 2
Dependent Claim
49 words
A self cleaning sheet comprising: a sheet of substrate; and microcapsules enveloping a solvent of a photo-curable material and being coated on said sheet of substrate, said solvent selected from the group consisting of isopropyl alcohol, butanol, ethyl alcohol, propyl alcohol, methyl alcohol, acetone, ethyl ketone and methyl ketone.
Claim 3
Dependent Claim
19 words
A self cleaning sheet according to claim 1 wherein an exterior of said microcapsules is composed of inorganic material.
Claim 4
Dependent Claim
72 words
A self cleaning sheet comprising a sheet of substrate having a first face and a second face opposite to each other wherein: said first face has thereon first microcapsules enveloping a first reaction component for an image developing reaction and a photo-curable material which advances mechanical breaking strength of the microcapsules in response to exposure to light; and said second face has thereon second microcapsules enveloping a solvent of said photo-curable material.
Claim 5
Dependent Claim
72 words
A self cleaning sheet comprising a sheet of substrate having a first face and a second face opposite to each other wherein: said first face has thereon first microcapsules enveloping a first reaction component for an image developing reaction and a photo-curable material which advances mechanical breaking strength of the microcapsules in response to exposure to light; and said second face has thereon second microcapsules enveloping a solvent of said photo-curable material.
Claim 6
Dependent Claim
37 words
A self cleaning sheet according to claim 3 wherein said first face has thereon a second reaction component which comes in contact with said first reaction component and reacts therewith, thereby changing color of said first face.
Claim 7
Dependent Claim
62 words
A self cleaning sheet comprising a sheet of substrate having a first face and a second face opposite to each other wherein: said first face has thereon developer which comes in contact with a first reaction component and reacts therewith, thereby changing color of said first face; and said second face has thereon second microcapsules enveloping a solvent of the photo-curable material.
Claim 8
Dependent Claim
62 words
A self cleaning sheet comprising a sheet of substrate having a first face and a second face opposite to each other wherein: said first face has thereon developer which comes in contact with a first reaction component and reacts therewith, thereby changing color of said first face; and said second face has thereon second microcapsules enveloping a solvent of the photo-curable material.
Claim 9
Dependent Claim
75 words
A self cleaning sheet comprising a sheet of substrate having a first portion and a second portion on the same side of the substrate wherein: said first portion has thereon first microcapsules enveloping a first reaction component for an image developing reaction and a photo-curable material which advances mechanical breaking strength of the microcapsules in response to exposure to light; and said second portion has thereon second microcapsules enveloping a solvent of said photo-curable material.
Claim 10
Dependent Claim
75 words
A self cleaning sheet comprising a sheet of substrate having a first portion and a second portion on the same side of the substrate wherein: said first portion has thereon first microcapsules enveloping a first reaction component for an image developing reaction and a photo-curable material which advances mechanical breaking strength of the microcapsules in response to exposure to light; and said second portion has thereon second microcapsules enveloping a solvent of said photo-curable material.
Claim 11
Dependent Claim
65 words
A self cleaning sheet comprising a sheet of substrate having a first portion and a second portion on the same side of the substrate wherein: said first portion has thereon developer which comes in contact with a first reaction component and reacts therewith, thereby changing color of said first portion; and said second portion has thereon second microcapsules enveloping a solvent of the photo-curable material.
Claim 12
Dependent Claim
65 words
A self cleaning sheet comprising a sheet of substrate having a first portion and a second portion on the same side of the substrate wherein: said first portion has thereon developer which comes in contact with a first reaction component and reacts therewith, thereby changing color of said first portion; and said second portion has thereon second microcapsules enveloping a solvent of the photo-curable 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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |