UST901019I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST901019I4 UST901019I4 US901019DH UST901019I4 US T901019 I4 UST901019 I4 US T901019I4 US 901019D H US901019D H US 901019DH US T901019 I4 UST901019 I4 US T901019I4
- Authority
- US
- United States
- Prior art keywords
- screens
- combination
- activated
- furanone
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 EUROPIUM ACTIVATED BARIUM STRONTIUM SULFATE Chemical class 0.000 abstract description 10
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- 229920002554 vinyl polymer Polymers 0.000 abstract description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052693 Europium Inorganic materials 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical class [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 2
- RHDGNLCLDBVESU-UHFFFAOYSA-N but-3-en-4-olide Chemical compound O=C1CC=CO1 RHDGNLCLDBVESU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract description 2
- 239000000839 emulsion Substances 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004014 plasticizer Substances 0.000 abstract description 2
- 239000004848 polyfunctional curative Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000005060 rubber Substances 0.000 abstract description 2
- 229910052711 selenium Inorganic materials 0.000 abstract description 2
- 239000011669 selenium Substances 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- 230000003595 spectral effect Effects 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 229940124543 ultraviolet light absorber Drugs 0.000 abstract description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 abstract description 2
- DNHJRFVMTLZXLB-UHFFFAOYSA-N 5-benzylidene-2-oxo-4-phenylfuran-3-carboxamide Chemical compound C(C1=CC=CC=C1)=C1C(=C(C(O1)=O)C(N)=O)C1=CC=CC=C1 DNHJRFVMTLZXLB-UHFFFAOYSA-N 0.000 abstract 1
- 208000030507 AIDS Diseases 0.000 abstract 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 abstract 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 3
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/16—X-ray, infrared, or ultraviolet ray processes
- G03C5/17—X-ray, infrared, or ultraviolet ray processes using screens to intensify X-ray images
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
Definitions
- Phosphorescent radiographic screens comprising a phosphor having a host matrix of at least one heavy metal ion having a physical density greater than about 4.1 gm./cm. dispersed in a binder comprising a combination of (l) a copolymer of ethyl acrylate with a halo alkyl vinyl ether and (2) an alkyl methacrylate polymer, each in a weight ratio range of from about 2 to 1 to about 50 to 1 respectively are disclosed.
- Particularly efiective phosphors include those whose emission is more than half in the ultraviolet region such as gadolinium activated yttrium oxide, europium activated barium strontium sulfate, lead activated barium sulfate and rare earth activated heavy metal ion phosphors.
- the binder is typically represented by combinations of (l) n-butyl methacrylate resins and (2) haloalkyl vinyl others whose alkyl moiety contains 1 to 6 carbons, e.g. dry rubbers or elastomers.
- the screens when combined with light sensitive radiographic elements, exhibit improved optical and physical characteristics.
- the screens can further comprise a support containing a 5(H)furanone ultra-violet light absorber, e.g. S-benzylidenc 3 -carbamoyl-4-pheny1-2(5H)furanone.
- Silver halide emulsions and elements useful in combination with the above screens can be chemically sensitized, e.g. with noble metal sensitizers alone or in combination with sulfur or selenium sensitizers. They can contain spectral sensitizers, incorporated color-forming couplers, incorporated developing agents, antifoggants, hardeners, plasticizers, coating aids, vinyl polymers, and other suitable photographic addenda such as described in US. Pat. 3,297,446 of Dunn issued Jan. 10, 1967 (columns 4 to 9).
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Luminescent Compositions (AREA)
Abstract
PHOSPHORESCENT RADIOGRAPHIC SCREENS COMPRISING A PHOSPHOR HAVING A HOST MATRIX OF AT LEAST ONE HEAVY METAL ION HAVING A PHYSICAL DENSITY GREATER THAN ABOUT 4.1 GM./CM.3 DISPERSED IN A BINDER COMPRISING A COMBINATION OF (1) A COPOLYMER OF ETHYL ACRYLATE WITH A HALO ALKYL VINYL ETHER AND (2) AN ALKYL METHACRYLATE POLYMER, EACH IN A WEIGHT RATIO RANGE OF FROM ABOUT 2 TO 1 TO ABOUT 50 TO 1 RESPECTIVELY ARE DISCLOSED. PARTICULARLY EFFECTIVE PHOSPHORS INCLUDE THOSE WHOSE EMISSION IS MORE THAN HALF IN THE ULTRAVIOLET REGION SUCH AS GADOLIMIUM ACTIVATED YITRIUM OXIDE, EUROPIUM ACTIVATED BARIUM STRONTIUM SULFATE, LEAD ACTIVATED BARIUM SULFATE AND RARE EARTH ACTIVATED HEAVY METAL ION PHOPHERS. THE BINDER IS TYPICALLY REPRESENTED BY COMBINATION OF (1) N-BUTYL METHACRYLATE RESINS AND (2) HALOALKYL VINYL ETHERS WHOSE ALKYL MOIETY CONTAINS 1 TO 6 CARBONS, E.G. DRY RUBBERS OF ELASTOMERS. SAID SCREENS, WHEN COMBINED WITH LIGHT SENSITIVE RADIOGRAPHIC ELEMENTS, EXHIBIT IMPROVED OPTICAL AND PHYSICAL CHARACTERTICS. THE SCREENS CAN FURTHER COMPRISE A SUPPORT CONTAINING A 5(H)FURANONE ULTRA-VIOLET LIGHT ABSORBER, E.G. 5-BENZYLIDENE - 3 - CARBAMOYL-4-PHENYL-2(5H)FURANONE. SILVER HALIDE EMULSIONS AND ELEMENTS USEFUL IN COMBINATION WITH THE ABOVE SCREENS CAN BE CHEMICALLY SENSITIZED, E.G. WITH NOBLE METAL SUNSITIZERS ALONE OR IN COMBINATION WITH SULFUR OR SELENIUM SENSITIZERS. THEY CAN CONTAIN SPECTRAL SENSITIZERS, INCORPORATED COLOR-FORMING COUPLERS, INCORPORATED DEVELOPING AGENTS, ANTIFOGGANTS, HARDENERS, PLASTICIZERS, COATING AIDS, VINYL POLYMERS, AND OTHER SUITABLE PHOTOGRAPHIC ADDENDA SUCH AS DESCRIBED IN U.S. PAT. 3,297,446 OF DUNN ISSUED JAN. 10, 4967 (COLUMNS 4 TO 9).
Description
llLlCA'ilN UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, S69 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter;
PUBLISHED AUGUST 8, 1972 T901,0l9 RADIOGRAPHIC ELEMENTS AND BINDERS George P. Kasper and John H. Taylor, both Eastman lfirzdsak Co., Kodak Park Division, Rochester, NY.
Filed Mar. 4, 1971, Ser. No. 121,120 int. Cl. G03b 41/16 US. Cl. 250-65 R No Drawing. 25 Pages Specification Phosphorescent radiographic screens comprising a phosphor having a host matrix of at least one heavy metal ion having a physical density greater than about 4.1 gm./cm. dispersed in a binder comprising a combination of (l) a copolymer of ethyl acrylate with a halo alkyl vinyl ether and (2) an alkyl methacrylate polymer, each in a weight ratio range of from about 2 to 1 to about 50 to 1 respectively are disclosed. Particularly efiective phosphors include those whose emission is more than half in the ultraviolet region such as gadolinium activated yttrium oxide, europium activated barium strontium sulfate, lead activated barium sulfate and rare earth activated heavy metal ion phosphors.
The binder is typically represented by combinations of (l) n-butyl methacrylate resins and (2) haloalkyl vinyl others whose alkyl moiety contains 1 to 6 carbons, e.g. dry rubbers or elastomers.
Said screens, when combined with light sensitive radiographic elements, exhibit improved optical and physical characteristics. The screens can further comprise a support containing a 5(H)furanone ultra-violet light absorber, e.g. S-benzylidenc 3 -carbamoyl-4-pheny1-2(5H)furanone.
Silver halide emulsions and elements useful in combination with the above screens can be chemically sensitized, e.g. with noble metal sensitizers alone or in combination with sulfur or selenium sensitizers. They can contain spectral sensitizers, incorporated color-forming couplers, incorporated developing agents, antifoggants, hardeners, plasticizers, coating aids, vinyl polymers, and other suitable photographic addenda such as described in US. Pat. 3,297,446 of Dunn issued Jan. 10, 1967 (columns 4 to 9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12112071A | 1971-03-04 | 1971-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST901019I4 true UST901019I4 (en) | 1972-08-08 |
Family
ID=22394691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US901019D Pending UST901019I4 (en) | 1971-03-04 | 1971-03-04 | Defensive publication |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | UST901019I4 (en) |
| BE (1) | BE779950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446588A1 (en) * | 1990-03-09 | 1991-09-18 | Siemens Aktiengesellschaft | Luminescent output screen for X-ray intensifying screen |
-
1971
- 1971-03-04 US US901019D patent/UST901019I4/en active Pending
-
1972
- 1972-02-28 BE BE779950A patent/BE779950A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0446588A1 (en) * | 1990-03-09 | 1991-09-18 | Siemens Aktiengesellschaft | Luminescent output screen for X-ray intensifying screen |
| US5126573A (en) * | 1990-03-09 | 1992-06-30 | Siemens Aktiengesellschaft | Output luminescent screen for an x-ray image intensifier having a terbiumactivated gadolinium oxysulfide base |
Also Published As
| Publication number | Publication date |
|---|---|
| BE779950A (en) | 1972-06-16 |
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