US3072577A - Moisture set magnetic inks - Google Patents
Moisture set magnetic inks Download PDFInfo
- Publication number
- US3072577A US3072577A US781485A US78148558A US3072577A US 3072577 A US3072577 A US 3072577A US 781485 A US781485 A US 781485A US 78148558 A US78148558 A US 78148558A US 3072577 A US3072577 A US 3072577A
- Authority
- US
- United States
- Prior art keywords
- magnetic
- inks
- set magnetic
- ink
- magnetic inks
- 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.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 title description 22
- 239000000976 ink Substances 0.000 title description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229920002494 Zein Polymers 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 239000005019 zein Substances 0.000 description 5
- 229940093612 zein Drugs 0.000 description 5
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 4
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 4
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 4
- 239000005642 Oleic acid Substances 0.000 description 4
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 241000209149 Zea Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- XPXMKIXDFWLRAA-UHFFFAOYSA-N hydrazinide Chemical compound [NH-]N XPXMKIXDFWLRAA-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000012260 resinous material Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical class CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229950011260 betanaphthol Drugs 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- FBWNMEQMRUMQSO-UHFFFAOYSA-N tergitol NP-9 Chemical compound CCCCCCCCCC1=CC=C(OCCOCCOCCOCCOCCOCCOCCOCCOCCO)C=C1 FBWNMEQMRUMQSO-UHFFFAOYSA-N 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/16—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates the magnetic material being applied in the form of particles, e.g. by serigraphy, to form thick magnetic films or precursors therefor
Definitions
- This invention relates to inks and more particularly to moisture-set magnetic inks.
- Ink materials are now available which when applied to a surface may be instantaneously affixed thereto by the application of water vapor, steam or the like. These inks are called moisture-set inks. Ink materials are also now available which are used for the production of magnetic records on non-magnetic record media, such as paper. Such magnetic inks contain ferromagnetic'materials in finely divided form, uniformly dispersed in the ink. In printing magnetic data representing characters on statistical cards or business documents it is imperative that the imprint be sharp and that it carry as high a percentage of magnetic material as is possible.
- Another object is to provide an ink carrying a high percentage of magnetic material which provides a clear nonsmear imprint of high magnetic stability.
- the inks of this. invention relate to a vehicle containing a binder constituent comprising a resinous material which is insoluble in water, a liquid carrier component in which the resinous material is dispersed or dissolved, said carrier being miscible with Water, astabilizing agent which increases compatability to water under atmospheric conditions but not under conditions of steam and a magnetic pigment consisting of an evenly dispersed ferromagnetic material of small particle size having either high magnetic remanence in the case of ink for use with the retentive type sensing or a high magnetic permeability in the case of the reluctance type sensing.
- the magnetic pigment may be a retentive type having high magnetic remanence or a reluctance type having high permeability. It consists of a magnetic powder preferably of microns or less in particle size having acicular, cubicle or. round shape. Specific non-limiting examples include ferric oxides in the gamma crystalline form, natural and artificial magnetites, hematites. and ferrites. Proportions up to about sixty-five percent by weight have been successfully employed.
- LIQUID CARRIER AND BINDER under application of steam or water vapor.
- examples include organic resinous polymeric materials such as phenolics, Vinsol, which is a petroleum hydrocarbon insoluble resin derived from pine wood and has a melting point of 116 C., maleated and fumarated rosins such as the adducts of maleic anhydride or fumaric acid with rosin, beta-naphthol pitches and the like.
- STABILIZING AGENT Minor amounts of a stabilizing agent may be used, between about five and about eight percent by weight.
- a stabilizing agent may be used, between about five and about eight percent by weight.
- Non-limiting examples are the polyethylene glycol aliphatic homologous series, polyethanolamines such as di and tri, higher molecular Weight clycols such as octylene, wax compounds and wetting agents.
- Such wetting agents as Nopco 1825-C, an ethoxylated fatty amino amide having a distillation point of 200 C. and, produced by Nopco Chemical Company, Inc.,- the Igepal group of wetting agentsa group of alkyl phenolethylene oxide condensation products produced by General Dyestuffs, Inc-and particularly Igepal CO 630.
- Another wetting agent that may be used is Venice turpentine sold under the trade name of Veniturp by S. P. Penick and Company.
- a film forming composition such as the protein resins, i.e. zein, the simple protein prepared from corn, dissolved in a glycol such as ethylene glycol may be added. Around 8% by weight is preferable.
- Zein A resin included as an ingredient in some of the following examples of ink compositions, is a modified corn protein having a melting point of 180 C. to 200 C. The zein A resin chars before melting, contains 14 amino acids in the full strength and has a molecular weight of 20,000 to 30,000.
- a minor amount of a colorant may be employed and suitable colorants are carbon black, dyes and lakes.
- the constituents of the ink are prepared and mixed in a conventional fashion and care is taken to evenly disperse the magnetic pigment throughout the vehicle.
- RETENTIVE TYPE Percent Material Function 35 Gamma ferric oxide powder, particle Magnetic pigment.
- RELUCTANCE TYPE Percent Material Function 60 Spherical pure iron powder, particle Magnetic high size .2 to 10 microns. permeability.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
3,072,577 MOISTURE SET MAGNETIC INKS Lewis F. Miller, New Paltz, and Norman M. Callaghan, Jr., Rhinebeck, N.Y., assignors to International Business Machines Corporation, New York, N.Y., a corporation of New York No Drawing. Filed Dec. 19, 1958, Ser. No. 781,485 1 Claim. (Cl. 252-62.5)
This invention relates to inks and more particularly to moisture-set magnetic inks.
Ink materials are now available which when applied to a surface may be instantaneously affixed thereto by the application of water vapor, steam or the like. These inks are called moisture-set inks. Ink materials are also now available which are used for the production of magnetic records on non-magnetic record media, such as paper. Such magnetic inks contain ferromagnetic'materials in finely divided form, uniformly dispersed in the ink. In printing magnetic data representing characters on statistical cards or business documents it is imperative that the imprint be sharp and that it carry as high a percentage of magnetic material as is possible.
It is an object of this invention to provide a moisture set magnetic ink having particular utility with printing machines used to provide record material for use in business machines, which inks are capable of forming nonsmearing, sharply defined data-representing magnetic deposits on paper sheets, cards and other record materials and are affixed to said record materials by the application of water vapor.
Another object is to provide an ink carrying a high percentage of magnetic material which provides a clear nonsmear imprint of high magnetic stability.
In general the inks of this. invention relate to a vehicle containing a binder constituent comprising a resinous material which is insoluble in water, a liquid carrier component in which the resinous material is dispersed or dissolved, said carrier being miscible with Water, astabilizing agent which increases compatability to water under atmospheric conditions but not under conditions of steam and a magnetic pigment consisting of an evenly dispersed ferromagnetic material of small particle size having either high magnetic remanence in the case of ink for use with the retentive type sensing or a high magnetic permeability in the case of the reluctance type sensing.
MAGNETIC PIGMENT The magnetic pigment may be a retentive type having high magnetic remanence or a reluctance type having high permeability. It consists of a magnetic powder preferably of microns or less in particle size having acicular, cubicle or. round shape. Specific non-limiting examples include ferric oxides in the gamma crystalline form, natural and artificial magnetites, hematites. and ferrites. Proportions up to about sixty-five percent by weight have been successfully employed.
LIQUID CARRIER AND BINDER under application of steam or water vapor. Examples include organic resinous polymeric materials such as phenolics, Vinsol, which is a petroleum hydrocarbon insoluble resin derived from pine wood and has a melting point of 116 C., maleated and fumarated rosins such as the adducts of maleic anhydride or fumaric acid with rosin, beta-naphthol pitches and the like.
STABILIZING AGENT Minor amounts of a stabilizing agent may be used, between about five and about eight percent by weight. Non-limiting examples are the polyethylene glycol aliphatic homologous series, polyethanolamines such as di and tri, higher molecular Weight clycols such as octylene, wax compounds and wetting agents. Such wetting agents as Nopco 1825-C, an ethoxylated fatty amino amide having a distillation point of 200 C. and, produced by Nopco Chemical Company, Inc.,- the Igepal group of wetting agentsa group of alkyl phenolethylene oxide condensation products produced by General Dyestuffs, Inc-and particularly Igepal CO 630. Another wetting agent that may be used is Venice turpentine sold under the trade name of Veniturp by S. P. Penick and Company.
In addition, a film forming composition such as the protein resins, i.e. zein, the simple protein prepared from corn, dissolved in a glycol such as ethylene glycol may be added. Around 8% by weight is preferable. Zein A resin, included as an ingredient in some of the following examples of ink compositions, is a modified corn protein having a melting point of 180 C. to 200 C. The zein A resin chars before melting, contains 14 amino acids in the full strength and has a molecular weight of 20,000 to 30,000.
A minor amount of a colorant may be employed and suitable colorants are carbon black, dyes and lakes.
The constituents of the ink are prepared and mixed in a conventional fashion and care is taken to evenly disperse the magnetic pigment throughout the vehicle.
Examples of specific inks are as follows:
Example N0. 1
RETENTIVE TYPE Percent Material Function 35 Gamma ferric oxide powder, particle Magnetic pigment.
size .2 to 20 microns high magnetic remanence.
5 Diethanolamine, oleic acid mixture Stability com- 30:70. pound.
31 Fumarated rosin dissolved in ethylene Heavy body varglycol 60:40. nish binder.
i7 Furnarated rosin dissolved in ethylene Medium body varglycol 50:50. nish binder.
8--" Zein resin dissolved in diethylene gly- Film forming com- 00125275. pound.
4 Carbon black, channel type Colorant.
Example No. 2
RELUCTANCE TYPE Percent Material Function 60 Spherical pure iron powder, particle Magnetic high size .2 to 10 microns. permeability.
20 Fumarated ros n dissolved in diethyl- Heavy body varene glycol 60:40. nish binder.
4 Triethanolamine, oleic acid 30:70 Stability coma pound.
4 Wax-rosin mixture diluted with octyl- Do.
ene glycol.
4 impingement type carbon black Colorant.
8 Zein resin dissolved in diethylene Film forming comglycol 25:75. pound.
q i a i Example N0. 3 33% of a 50:50 solution of fumarated Wood resin having a melting point of 150 C. in dipropylene glycol, Percent Material Function 5% of a 30:70 solution of triethanolamine in oleic acid, 6% of a 25:75 solution of zein A resin in diethylene 3(3) ii eiculartsgnthegic m n ip I t :lgifagnetca 5 glycol, 3% of carbon black and 3% of an ethoxylated l 1 e vng Ill i 4 A i f gl fg fgfi ggj g g g l fatty amino amide having a distillation point of 200 C. Tr ie tl iZm bIamine in oleic acid 30:70,. Stabiliby com- References Cited in the file of this patent JOUHG. G ZeinAresinindiethylene glycol 25:75 Fi lmFormcilng UNITED STATES PATENTS ll 3 p e t a black qgo ga htg 697 375 P k J l 2 1393 3 182: "I 2,346,968 Jeuck et al. 'Apr, 18, 1944 2,34 ,9 9 Je k t A 18, 1944 What has been disclosed are specific embodiments of 2 2 g e a1 11 1945 the present invention. Other embodiments obvious to 2606124 z igg Au 1952 those skilled in the art from the teaching herein are 2584909 Leekle L y et a1. July 27, 1954 contemplated to be within the spirit and scope of the 2688 649 Bjorksten Sept 7 1954 following claim.
What is claimed is: OTHER REFERENCES A moisture-set magnetic ink consisting y Weight, Wolfe: Printing and Litho Inks, 4th ed., Macnairapproximately finely divided magnetic p g 2 Dorland 00., New York, N.Y., 1949, pages 187, 315-317.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US781485A US3072577A (en) | 1958-12-19 | 1958-12-19 | Moisture set magnetic inks |
| GB43383/59A GB933719A (en) | 1958-12-19 | 1959-12-21 | Improvements in and relating to magnetic inks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US781485A US3072577A (en) | 1958-12-19 | 1958-12-19 | Moisture set magnetic inks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3072577A true US3072577A (en) | 1963-01-08 |
Family
ID=25122901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US781485A Expired - Lifetime US3072577A (en) | 1958-12-19 | 1958-12-19 | Moisture set magnetic inks |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3072577A (en) |
| GB (1) | GB933719A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3436234A (en) * | 1965-04-29 | 1969-04-01 | Xerox Corp | Duplicating ink |
| US3470021A (en) * | 1966-04-21 | 1969-09-30 | Gevaert Photo Prod Nv | Magnetic recording material |
| US3496015A (en) * | 1966-11-09 | 1970-02-17 | Columbia Ribbon Carbon Mfg | Pressure-sensitive magnetic transfer elements |
| US3718552A (en) * | 1970-12-21 | 1973-02-27 | C Mortell | Method and apparatus for electrolytically recovering metals |
| US3901816A (en) * | 1974-06-17 | 1975-08-26 | Dow Chemical Co | Magnetic tape coating |
| US3990981A (en) * | 1974-08-23 | 1976-11-09 | International Business Machines Corporation | Water based magnetic inks and the manufacture thereof |
| US4043824A (en) * | 1975-08-04 | 1977-08-23 | Hercules Incorporated | Ceramic color compositions and a method for decorating ceramic ware therewith |
| US4668586A (en) * | 1984-10-18 | 1987-05-26 | Basf Aktiengesellschaft | Magnetic recording media |
| EP0464474A2 (en) * | 1990-06-22 | 1992-01-08 | MANTEGAZZA ANTONIO ARTI GRAFICHE S.r.l. | Delible magnetic ink and process for making the same |
| US5609788A (en) * | 1995-03-17 | 1997-03-11 | Deetz; Dayton J. | Magnetic paint additive |
| US20060029516A1 (en) * | 2004-08-09 | 2006-02-09 | General Electric Company | Sensor films and systems and methods of detection using sensor films |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US607875A (en) * | 1898-07-26 | Process of producing magnetic oxid of iron | ||
| US2346969A (en) * | 1942-09-15 | 1944-04-18 | Interchem Corp | Printing ink |
| US2346968A (en) * | 1942-09-15 | 1944-04-18 | Interchem Corp | Typographic printing ink |
| US2384579A (en) * | 1941-08-20 | 1945-09-11 | Harmon Color Works Inc | Iron pigments |
| US2606124A (en) * | 1950-09-26 | 1952-08-05 | Alfred F Schmutzler | Printing ink |
| US2684909A (en) * | 1951-09-11 | 1954-07-27 | Time Inc | Zein ink vehicle |
| US2688649A (en) * | 1951-12-14 | 1954-09-07 | Bjorksten Res Lab For Electroc | Printed battery and method for making |
-
1958
- 1958-12-19 US US781485A patent/US3072577A/en not_active Expired - Lifetime
-
1959
- 1959-12-21 GB GB43383/59A patent/GB933719A/en not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US607875A (en) * | 1898-07-26 | Process of producing magnetic oxid of iron | ||
| US2384579A (en) * | 1941-08-20 | 1945-09-11 | Harmon Color Works Inc | Iron pigments |
| US2346969A (en) * | 1942-09-15 | 1944-04-18 | Interchem Corp | Printing ink |
| US2346968A (en) * | 1942-09-15 | 1944-04-18 | Interchem Corp | Typographic printing ink |
| US2606124A (en) * | 1950-09-26 | 1952-08-05 | Alfred F Schmutzler | Printing ink |
| US2684909A (en) * | 1951-09-11 | 1954-07-27 | Time Inc | Zein ink vehicle |
| US2688649A (en) * | 1951-12-14 | 1954-09-07 | Bjorksten Res Lab For Electroc | Printed battery and method for making |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3436234A (en) * | 1965-04-29 | 1969-04-01 | Xerox Corp | Duplicating ink |
| US3470021A (en) * | 1966-04-21 | 1969-09-30 | Gevaert Photo Prod Nv | Magnetic recording material |
| US3496015A (en) * | 1966-11-09 | 1970-02-17 | Columbia Ribbon Carbon Mfg | Pressure-sensitive magnetic transfer elements |
| US3718552A (en) * | 1970-12-21 | 1973-02-27 | C Mortell | Method and apparatus for electrolytically recovering metals |
| US3901816A (en) * | 1974-06-17 | 1975-08-26 | Dow Chemical Co | Magnetic tape coating |
| US3990981A (en) * | 1974-08-23 | 1976-11-09 | International Business Machines Corporation | Water based magnetic inks and the manufacture thereof |
| US4043824A (en) * | 1975-08-04 | 1977-08-23 | Hercules Incorporated | Ceramic color compositions and a method for decorating ceramic ware therewith |
| US4668586A (en) * | 1984-10-18 | 1987-05-26 | Basf Aktiengesellschaft | Magnetic recording media |
| EP0464474A2 (en) * | 1990-06-22 | 1992-01-08 | MANTEGAZZA ANTONIO ARTI GRAFICHE S.r.l. | Delible magnetic ink and process for making the same |
| EP0464474A3 (en) * | 1990-06-22 | 1993-04-21 | Mantegazza Antonio Arti Grafiche S.R.L. | Delible magnetic ink and process for making the same |
| US5609788A (en) * | 1995-03-17 | 1997-03-11 | Deetz; Dayton J. | Magnetic paint additive |
| US20060029516A1 (en) * | 2004-08-09 | 2006-02-09 | General Electric Company | Sensor films and systems and methods of detection using sensor films |
Also Published As
| Publication number | Publication date |
|---|---|
| GB933719A (en) | 1963-08-14 |
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