US5591508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating methods and compositions for production of digitized stereoscopic polarizing images
Assignee: Harvard University
•
Filing: 1995-01-31
•
Granted: 1997-01-07
•
Expires: 2015-01-31
Abstract
Abstract The transfer of dichroic inks into stretched and oriented substrates to form stereoscopic polarizing images and the like can be improved by the use of coatings which enhance imbibition of the ink into the substrate. The coatings serve to hold the ink in situ for a sufficient period of time to permit absorption of the dye and transfer of rich colors while minimizing the problems of smearing and/or runoff of unabsorbed ink. The present invention is particularly use will in the adaptation of ink jet printing techniques to the formation of stereoscopic polarizing images.
Inventors
- 👤 Julius J. Scarpetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:54
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41J; B41J11/00; B41J11/0015; B41J11/004; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41J3/00; B41J3/60; B41M3/00; B41M3/06; G; G06; G06K; G06K15/00; B41M5/502; B41M5/508; B41M5/5227; B41M5/5236; B41M7/00; B41M7/0027; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1348; Y10T428/1352; Y10T428/1379; Y10T428/1383; Y10T428/24; Y10T428/24058; Y10T428/249921; Y10T428/249953
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
66 words
A treated sheet material for recording an image, the treated sheet material comprising a substrate having a top surface and a bottom surface, and a coating overlying the top surface of the substrate, the coating comprising an ink-permeable polymeric material for transporting ink molecules from an upper surface of the coating to the underlying substrate and for regulating imbibition of the ink molecules by the substrate.
Claim 2
Dependent Claim
66 words
A treated sheet material for recording an image, the treated sheet material comprising a substrate having a top surface and a bottom surface, and a coating overlying the top surface of the substrate, the coating comprising an ink-permeable polymeric material for transporting ink molecules from an upper surface of the coating to the underlying substrate and for regulating imbibition of the ink molecules by the substrate.
Claim 3
Dependent Claim
16 words
A treated sheet material according to claim 1 wherein the ink-permeable polymeric material is a gel.
Claim 4
Dependent Claim
24 words
A treated sheet material according to claim 1 wherein the ink-permeable polymeric material is chosen from the group consisting of natural and synthetic gums.
Claim 5
Dependent Claim
17 words
A treated sheet material according to claim 1 wherein the ink-permeable polymeric material is a cellulosic polymer.
Claim 6
Dependent Claim
22 words
A treated sheet material according to claim 1 wherein the coating further comprises dispersed particulates for inhibiting lateral diffusion of ink molecules.
Claim 7
Dependent Claim
21 words
A treated sheet material according to claim 5 wherein the particulates range from about 15 to about 20 micrometers in size.
Claim 8
Dependent Claim
22 words
A treated sheet material according to claim 5 wherein the particulates comprise about 0.35 to about 1.0 weight percent of the coating.
Claim 9
Dependent Claim
14 words
A treated sheet material according to claim 1 wherein the particulates are colloidal silica.
Claim 10
Dependent Claim
14 words
A treated sheet material according to claim 1 wherein the coating is water soluble.
Claim 11
Dependent Claim
18 words
A treated sheet material according to claim 1 wherein the coating further comprises a water-resistant upper protective layer.
Claim 12
Dependent Claim
17 words
A treated sheet material according to claim 10 wherein the protective layer is scratch and abrasion resistant.
Claim 13
Dependent Claim
15 words
A treated sheet material according to claim 10 wherein the protective layer absorbs ultra-violet radiation.
Claim 14
Dependent Claim
15 words
A treated sheet material according to claim 1 wherein the coating further comprises a fungicide.
Claim 15
Dependent Claim
22 words
A treated sheet material according to claim 1 wherein the coating has a thickness ranging from about 0.02 to about 0.03 micrometers.
Claim 16
Dependent Claim
43 words
A treated sheet material for recording an image, comprising a stretched and oriented polymer substrate, and a coating overlying the substrate, the coating comprising an ink-permeable polymeric material for transporting ink molecules from an upper surface of the coating to the underlying substrate.
Claim 17
Dependent Claim
43 words
A treated sheet material for recording an image, comprising a stretched and oriented polymer substrate, and a coating overlying the substrate, the coating comprising an ink-permeable polymeric material for transporting ink molecules from an upper surface of the coating to the underlying substrate.
Claim 18
Dependent Claim
16 words
A treated sheet material according to claim 15 wherein the ink-permeable polymeric material is a gel.
Claim 19
Dependent Claim
27 words
A treated sheet material according to claim 15 wherein the ink-permeable polymeric material is chosen from the group consisting of natural gums, synthetic gums, and cellulosic polymers.
Claim 20
Dependent Claim
22 words
A treated sheet material according to claim 15 wherein the coating further comprises dispersed particulates for inhibiting lateral diffusion of ink molecules.
Claim 21
Dependent Claim
21 words
A treated sheet material according to claim 18 wherein the particulates range from about 15 to about 20 micrometers in size.
Claim 22
Dependent Claim
24 words
A treated sheet material according to claim 18 wherein the particulates comprise about 0.35 to about 1.0 weight percent of the coating before drying.
Claim 23
Dependent Claim
14 words
A treated sheet material according to claim 15 wherein the particulates are colloidal silica.
Claim 24
Dependent Claim
13 words
A treated sheet material according to claim 15 wherein the coating is water-soluble.
Claim 25
Dependent Claim
13 words
A treated sheet material according to claim 15 wherein the coating is permanent.
Claim 26
Dependent Claim
18 words
A treated sheet material according to claim 23 wherein the coating further comprises a water-resistant upper protective layer.
Claim 27
Dependent Claim
17 words
A treated sheet material according to claim 24 wherein the protective layer is scratch and abrasion resistant.
Claim 28
Dependent Claim
16 words
A treated sheet material according to claim 24 wherein the upper protective layer absorbs ultra-violet radiation.
Claim 29
Dependent Claim
15 words
A treated sheet material according to claim 15 wherein the coating further comprises a fungicide.
Claim 30
Dependent Claim
22 words
A treated sheet material according to claim 15 wherein the coating has a thickness ranging from about 0.02 to about 0.03 micrometers.
Claim 31
Dependent Claim
16 words
A treated sheet material according to claim 15 wherein the substrate is formed of polyvinyl alcohol.
Claim 32
Dependent Claim
35 words
A treated sheet material according to claim 1, further comprising a second coating spanning the bottom surface of the substrate, the second coating also being formed of an ink-permeable polymeric material for transporting ink molecules.
Claim 33
Dependent Claim
45 words
A treated sheet material according to claim 30, wherein the substrate is formed of a first molecularly oriented sheet aligned along a first axis and a second molecularly oriented sheet aligned along a second axis, the second axis being substantially orthogonal to the first axis.
Claim 34
Dependent Claim
19 words
A treated sheet material in accordance with claim 30, further comprising a reflective layer mounted to said second coating.
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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) | 2000-01-07 | 2000-07-08 | 2001-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-01-07 | 2004-07-08 | 2005-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-01-07 | 2008-07-08 | 2009-01-07 | $7700.00 | Window Closed / Lapsed |