Patent US5672465A successfully refreshed from Google Patents.
US5672465A
Expired / Lapsed
US
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Polyethyleneimine binder complex films
Assignee: JP Laboratories Inc
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Filing: 1995-01-09
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Granted: 1997-09-30
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Expires: 2015-01-09
Abstract
Abstract Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH 2 --O--CONH--(CH 2 ) 5 CH 3 . After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
Inventors
- 👤 Gordhanbhai N. Patel
- 👤 Yao-Ming Cheng
- 👤 Subhash H. Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:47
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/28; G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C5/00; G03C5/16; G03F; G03F7/00; G03F7/004; G03F7/025; B41M5/286
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
58 words
A self-developing film comprising: (a) at least one radiation sensitive diacetylene material, (b) a polyethyleneimine binder, associated in a complex or solid solution with (c) a convertor, capable, upon contact with high energy X-ray, gamma ray, neutrons, electrons, or laser radiation of forming an image, and (d) a substrate upon which (a), (b), and (c) are deposited thereon.
Claim 2
Dependent Claim
58 words
A self-developing film comprising: (a) at least one radiation sensitive diacetylene material, (b) a polyethyleneimine binder, associated in a complex or solid solution with (c) a convertor, capable, upon contact with high energy X-ray, gamma ray, neutrons, electrons, or laser radiation of forming an image, and (d) a substrate upon which (a), (b), and (c) are deposited thereon.
Claim 3
Dependent Claim
166 words
The film of claim 1 wherein said diacetylene material is selected from: (1) Higher acetylenes: R'--(C.tbd.C) n --R", where n=3-5, (2) Split di and higher acetylenes: R'--(C═C) m --Z--(C.tbd.C) o --R", where Z is a diradical, and m and o are 2 or higher, (3) Polymeric di and higher acetylenes: --A--(C.tbd.C) n --B--! x , where A and B can be the same or different diradical selected from --(CH 2 ) n --, --OCONH--(CH 2 ) n --NHCOO--, and --OCO(CH 2 ) n OCO--, where n is 1-6, and (4) Cocrystallized mixtures of (1), (2), (3) above; wherein R' and R" are selected from: (CH 2 ) b --H (CH 2 ) b OH (CH 2 ) b --OCONH--R1 (CH 2 ) b --O--CO--R1 (CH 2 ) b --COOH (CH 2 ) b --COOM (CH 2 ) b --NH 2 (CH 2 ) b --CONHR1 (CH 2 ) b --CO--O--R1 where b=1-10, R1 is C 2 -C 6 alkyl or phenyl and M is a cation.
Claim 4
Dependent Claim
29 words
The film of claim 2 wherein said diacetylene material is a urethane or ester derivative of 2,4-hexadiyne, 2,4-hexadiyn-1,6-diol, 3,5-octadiyn-1,8-diol, 4,6-decadiyn-1,10-diol, 5,7-dodeoadiyn-1,12-diol, tricosa-10,12-diynoic acid, pentacosa-10,12-diynoic acid, and cocrystallized mixtures thereof.
Claim 5
Dependent Claim
70 words
The film of claim 3 wherein said diacetylene material is a derivative of 2,4-hexadiyn-1,6-diol, being symmetrical or asymmetrical, wherein R' and R" are independently selected from: OCONH(CH 2 ) 5 CH 3 , OCONH(CH 2 ) 4 CH 3 , OCONH(CH 2 ) 3 CH 3 , OCONHCH 2 CH 3 , OCONHCH 3 , OCO(CH 2 ) 3 CH 3 OCOCH 2 CH 3 , or OCOCH 3 .
Claim 6
Dependent Claim
25 words
The film of claim 4 wherein said diacetylene material is the hexyl urethane derivative of 2,4-hexadiyn-1,6-diol, 5,7-dodecadiyn-1,12-bis(n-butoxycarbonylmethylurethane), tricosa-10,12-diynoic acid, pentacosa-10,12-diynoic acid, or cocrystallized mixtures thereof.
Claim 7
Dependent Claim
33 words
The film of claim 2 for developing an image from exposure to gamma rays wherein said convertor can emit lower energy radiation for polymerization of said diacetylene material after contact with gamma radiation.
Claim 8
Dependent Claim
34 words
The film of claim 2 for developing an image from exposure to X-ray radiation wherein said convertor can emit lower energy radiation for polymerization of said diacetylene material after contact with said X-ray radiation.
Claim 9
Dependent Claim
24 words
The film of claim 2 wherein the convertor is a metallic moiety covalently or ionically bonded to at least one of said diacetylenes materials.
Claim 10
Dependent Claim
14 words
The film of claim 2 wherein said diacetylene material is in radiation active form.
Claim 11
Dependent Claim
29 words
The film of claim 2 wherein said diacetylene material is in a radiation inactive form but is capable of being converted to the radiation active form prior to use.
Claim 12
Dependent Claim
26 words
A film of claim 2 wherein said resulting image can be further amplified or darkened by contacting with a dye which bonds with the diacetylene materials.
Claim 13
Dependent Claim
14 words
The film of claim 1 for developing an image from exposure to laser radiation.
Claim 14
Dependent Claim
31 words
The film of claim 1 for developing an image from exposure to electrons wherein said convertor can emit lower energy radiation for polymerization of said diacetylene material after contact with electrons.
Claim 15
Dependent Claim
32 words
The film of claim 1 for developing an image from exposure to neutron radiation wherein said convertor can emit lower energy radiation for polymerization of said diacetylene material after contact with neutrons.
Claim 16
Dependent Claim
21 words
The film of claim 14 wherein said convertor is an element, alloy, salt, or mixture thereof of boron, lithium, and gadolinium.
Claim 17
Dependent Claim
21 words
The film of claim 7 wherein said convertor is selected from an element, alloy, salt, and mixture thereof of barium, lead.
Claim 18
Dependent Claim
35 words
The film of claim 1 wherein the convertor is a radio/electron luminescence or fluorescence phosphor which emits UV light, and/or lower energy X-ray, and/or electrons when contacted with high energy X-rays, gamma rays, or electrons.
Claim 19
Dependent Claim
15 words
The film of claim 1 wherein the convertor is intermixed with said materials binder layer.
Claim 20
Dependent Claim
57 words
The film of claim 1 wherein said convertor is selected from salts, alloys, or mixtures of: Cr, Mn, Fe, Co, Ni, Zr, Ru, in, Sb, W, Bi, U, La, B, Gd, Zn, Mo, Ba, Pd, Ag, Cu, Pt, Pb, Au, Li, Hg, Ti, Cd, K, Mg, Na, Sn, Cs, I; phosphors; fluorescent compounds; and cathode luminescent compounds.
Claim 21
Dependent Claim
83 words
The film of claim 19 wherein said convertor is selected from Bal 2 , BaSO 4 , BaBr 2 , BaCl 2 , Pbl 2 , MgCl 2 , KI, KBr, Nal, Na 3 PO 4 , Snl 4 , H 2 WO 4 , ZnO, ZnBr 2 , Znl 2 , ZnSO 4 , CsBr, Csl, ZnS, ZnCl 2 , Gd 2 O 2 S, Y 2 O 2 S, CaWO 3 , ZnSiO 4 , and H 3 BO 3 .
Claim 22
Dependent Claim
17 words
The film of claim 1 wherein said convertor emits lower energy radiation of 4 eV or above.
Claim 23
Dependent Claim
20 words
The film of claim 1 wherein said convertor is selected from lead iodide, barium iodide, boric acid, and mixtures thereof.
Claim 24
Dependent Claim
14 words
The film of claim 1 wherein said binder forms a complex with said convertor.
Claim 25
Dependent Claim
11 words
The film of claim 1 further comprising (d) an undercoat layer.
Claim 26
Dependent Claim
11 words
The film of claim 1 further comprising said film being transparent.
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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) | 2000-09-29 | 2001-03-31 | 2001-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-09-29 | 2005-03-31 | 2005-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-09-29 | 2009-03-31 | 2009-09-30 | $7700.00 | Window Closed / Lapsed |