US4309713A
Expired / Lapsed
US
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Thermal recording elements
Assignee: Fujifilm Holdings Corp
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Filing: 1979-06-26
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Granted: 1982-01-05
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Expires: 1999-06-26
Abstract
Abstract A thermal recording element comprising a support, a recording layer formed thereon and a chlorinated polyolefin layer formed on said recording layer.
Inventors
- 👤 Fumiaki Shinozaki
- 👤 Tomizo Namiki
- 👤 Masao Kitajima
- 👤 Tomoaki Ikeda
- 👤 Yuzo Mizobuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:24
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/257; G11B7/2572; G11B7/2575; G11B7/254; G11B7/2542; G11B7/242; G11B7/243; G11B2007/24302; G11B2007/2431; G11B2007/24312; G11B2007/24318; G11B2007/24324; G11B2007/24326; G11B7/253; G11B7/2533; G11B7/2535; Y; Y10; Y10S; Y10S430/00; Y10S430/162; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
71 words
A thermal recording element having increased recording sensitivity to thermal radiation comprising a support having provided thereon a recording layer having high optical density which undergoes thermal deformation under the action of high intensity radiation to result in a difference in optical density between irradiated areas and non-irradiated areas and a chlorinated polyolefin layer adjacent said recording layer, said chlorinated polyolefin layer increasing the thermal recording sensitivity of said recording layer.
Claim 2
Dependent Claim
71 words
A thermal recording element having increased recording sensitivity to thermal radiation comprising a support having provided thereon a recording layer having high optical density which undergoes thermal deformation under the action of high intensity radiation to result in a difference in optical density between irradiated areas and non-irradiated areas and a chlorinated polyolefin layer adjacent said recording layer, said chlorinated polyolefin layer increasing the thermal recording sensitivity of said recording layer.
Claim 3
Dependent Claim
21 words
The thermal recording element of claim 1, wherein said chlorinated polyolefin layer is disposed between the recording layer and the support.
Claim 4
Dependent Claim
18 words
The thermal recording element of claim 1, wherein said chlorinated polyolefin layer is disposed on the recording layer.
Claim 5
Dependent Claim
21 words
The thermal recording element of claim 1, wherein said chlorinated polyolefin layer is disposed on both sides of the recording layer.
Claim 6
Dependent Claim
13 words
The thermal recording element of claim 1, wherein said support is polyethylene terephthalate.
Claim 7
Dependent Claim
15 words
The thermal recording element of claim 1, wherein said recording layer is a metal layer.
Claim 8
Dependent Claim
19 words
The thermal recording element of claim 1, wherein said recording layer is a layer of Sn, Bi or In.
Claim 9
Dependent Claim
21 words
The thermal recording element of claim 1, wherein said recording layer is a layer of GeS, SnS or PbI 2 .
Claim 10
Dependent Claim
47 words
The thermal recording element of claim 1, wherein said recording layer is composed of a mixture of Sn, Bi or In and GeS, SnS or PbI 2 or composed of a layer of Sn, Bi or In and a layer of GeS, SnS or PbI 2 .
Claim 11
Dependent Claim
23 words
The thermal recording element of claim 1, wherein the thickness of said laminated layer of said material is about 50 to 1,000 A.
Claim 12
Dependent Claim
17 words
The thermal recording element of claim 1, wherein said chlorinated polyolefin is chlorinated polyethylene or chlorinated polypropylene.
Claim 13
Dependent Claim
34 words
The thermal recording element of claim 1, wherein the thickness of said chlorinated polyolefin layer is about 0.05 μm to 10 μm when the layer is disposed between the recording layer and the support.
Claim 14
Dependent Claim
35 words
The thermal recording element of claim 1, wherein the thickness of said chlorinated polyolefin layer is about 0.2 μm to 10 μm when the layer is disposed on the recording layer as a protective layer.
Claim 15
Dependent Claim
25 words
The thermal recording element of claim 1, wherein said recording layer is a metal layer and has a thickness of about 300 to 1500 A.
Claim 16
Dependent Claim
119 words
The thermal recording element of claim 1, wherein said recording layer is a metal and is used together with a material to increase the recording sensitivity, said material being used as a mixture with said material or as a laminated layer of said material in combination with a layer of said metal, said material being selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , chalcogen compounds of Ge, In, Sn, Cu, Ag, Fe, Bi, Al, Si, Zn and V, a halide selected from the group consisting of PbX 2 , AgX, SnX 2 , SbX 5 , and SbX 3 wherein X represents fluorine chlorine, bromine or iodine.
Claim 17
Dependent Claim
25 words
The thermal recording element of claim 1, wherein said chlorinated polyolefin is chlorinated polyethylene or chlorinated polypropylene having a chlorination degree higher than about 30%.
Claim 18
Dependent Claim
16 words
The thermal recording element of claim 16, wherein said chlorination degree is higher than about 50%.
Claim 19
Dependent Claim
16 words
The thermal recording element of claim 16, wherein said chlorination degree is about 50 to 70%.
Claim 20
Dependent Claim
38 words
The thermal recording element of claim 16, wherein said chlorinated polyethylene or chlorinated polypropylene has a viscosity of 20 to 3000 cps in 40% toluene at 25° C. and a softening point of about 100° to 140° C.
References Cited (Backward Citations)
US3519511A
Cited
US3475248A
Cited
US3600217A
Cited
US3679455A
Cited
US3682639A
Cited
US3984583A
Cited
US4032691A
Cited
US4069487A
Cited
US4042398A
Cited
US4075384A
Cited
US4173677A
Cited
US4101907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |