US3367796A - Pyrolizable enamel coated wire comprising manganese and cobalt chelates - Google Patents
Pyrolizable enamel coated wire comprising manganese and cobalt chelates Download PDFInfo
- Publication number
- US3367796A US3367796A US618547A US61854766A US3367796A US 3367796 A US3367796 A US 3367796A US 618547 A US618547 A US 618547A US 61854766 A US61854766 A US 61854766A US 3367796 A US3367796 A US 3367796A
- Authority
- US
- United States
- Prior art keywords
- enamel
- manganese
- insulation
- conductor
- glass
- 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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims description 12
- 229910052748 manganese Inorganic materials 0.000 title claims description 12
- 239000011572 manganese Substances 0.000 title claims description 12
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims description 11
- 229910017052 cobalt Inorganic materials 0.000 title claims description 9
- 239000010941 cobalt Substances 0.000 title claims description 9
- 210000003298 dental enamel Anatomy 0.000 title description 23
- 239000011521 glass Substances 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 18
- 239000011230 binding agent Substances 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 16
- 239000013522 chelant Substances 0.000 claims description 11
- 230000004927 fusion Effects 0.000 claims description 8
- 238000004804 winding Methods 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 5
- 229940071106 ethylenediaminetetraacetate Drugs 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- MPMSMUBQXQALQI-UHFFFAOYSA-N cobalt phthalocyanine Chemical compound [Co+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 MPMSMUBQXQALQI-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- PQPVPZTVJLXQAS-UHFFFAOYSA-N hydroxy-methyl-phenylsilicon Chemical class C[Si](O)C1=CC=CC=C1 PQPVPZTVJLXQAS-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000512668 Eunectes Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2958—Metal or metal compound in coating
Definitions
- our invention relates to an improvement in metal coating enamels of the type comprising fusible glass elements where it is intended to pyrolize the organic constituent and fuse the glass to form the final coating.
- our invention relates to the inclusion in said enamels of manganese and cobalt chelates.
- magnet wire enamel comprising l-25 parts by weight of fusible powdered glass, 75-90 parts by weight of organic enamel such as terephthalate modified phenyl-methyl-siloxane resin, and 0.53 parts by weight of manganous or cobaltous chelate.
- Example in an example a magnet wire enamel was formulated as follows:
- the slurry of the example was applied to a nickelplated copper wire and baked at 250 C. to form a uniform coating.
- the wire was then wound into a coil and placed in an oven at 500 C. for 15 minutes to burn off the enamel. Thereafter the oven temperature was raised to 650 C. for /2 hour to fuse the insulation. When it was subsequently cooled the coil wire forming the coil was found to be insulated with a uniform coating of fused glass.
- the drawing shows a section of a coil made to our in vention prior to pyrolizing the enamel.
- a coil is indicate-d generally by the numeral 10 made up of a plurality of turns of a magnet wire 11.
- the wire 11 has a copper conductor 12 with an outer plating 13 of nickel to prevent oxidation of the copper at high temperatures of operation.
- the nickel coating is much exaggerated in the drawing and it will be understood that we do not wish to limit our invention to any particular selection of conductor material.
- Surrounding the conductor 12 is an organic enamel 14 in which has been suspended and baked prior to the formation of the coil 10 a sufficient percentage of glass particles 16 to completely coat the conductor 12 after the enamel 14 has been pyrolized and the glass has been fused. It is a feature of the enamel 14 that it comprises a small percentage of manganese and cobalt chelate.
- the electrical system comprising the wire 12 and glasscomprising enamel 14 may be shipped and stored for long periods prior to forming into windings.
- An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an organic binder supporting said insulation said binder being pyrolized prior to the fusion of said insulation, and a minor amount of metal chelate selected from the class consisting of cobalt and manganese chelates compounded in said binder.
- An electrical system comprising a conductor, an enamel coating said conductor, fusible glass particles suspended in said enamel, said enamel being pyrolized prior to the fusion of said particles, and a minor amount of metal chelate selected from the class consisting of cobalt and manganese chelates compounded in said binder.
- An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an enamel binder supporting said insulation said binder being pryolized prior to the fusion of said insulation, and about 0.53% by weight of a cobalt chelate compounded in said binder.
- An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an enamel binder supporting said insulation said binder being pyrolized prior to the fusion of said insulation and about 0.54% by weight of a manganese chelate compounded in said binder.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
Description
1968 H. L.'SAUMS ETAL 3,367,796
PYROLIZABLE ENAMEL COATED WIRE COMPRISING MANGANESE AND COBALT CHELATES Original Filed March 8, 1962 ENAMEL COMPRISING MANGANESE end/or coBALTj CHELATE INVENTORS HARRY L. SAUMS BY WESLEY W. PENDLETON 3,367,795 Patented Feb. 6, 1968 free 3,367,796 PYROLIZABLE ENAMEL COATED WERE COM- PRHSING MANGANESE AND COBALT CHELATES Harry L. Saurns, North Musiregon, and Wesley W. Pendleton, Muskegon, Micln, assignors to Anaconda Wire and Cable Company Original application Mar. 8, 1962, Ser. No. 178,349. Divided and this application July 13, 1966, Ser. No.
6 Claims. (Cl. 117-215) This application is a division of application Ser. No. 178,349, =filed Mar. 8, 1962, now Patent Number 3,294,- 731.
=Our invention relates to an improvement in metal coating enamels of the type comprising fusible glass elements where it is intended to pyrolize the organic constituent and fuse the glass to form the final coating. Particularl our invention relates to the inclusion in said enamels of manganese and cobalt chelates.
In the preparation of electrical windings for very high temperature service it has been disclosed by the present applicants in an application now pending to coat magnet wire with a fusible glass held in place by an organic enamel, to form the coated wire into windings, to burn or pyrolize off the organic constituent and to fuse the glass so that the insulating components of the completed winding are entirely vitreous and free from carbon compounds with the result that the winding can be safely operated at temperatures in excess of 500 C. which would completely destroy conventional windings.
In the course of manufacturing windings of the type described above there is a critical period, during and directly following the pyrolysis of the organic enamel and prior to the complete fusion of the glass where the latter may become separated from the Wire it is intended to cover. This wire is usually a nickel-plated copper wire and in prior art methods there is no adhesion of glass to the nickel surface after the organic binder has been pyrolized.
It is an object of our invention to maintain the integrity of the glass insulation of an electrical winding during and subsequent to the fusion of the glass into a contiguous coating.
We have found that when a small percentage of a cobalt or manganese chelate is added to the enamel composition the glass remains in posit-ion on the wire and we have invented an electrical system comprising a conductor, fusible glass insulation surrounding the conductor, and an organic binder supporting the insulation. Our binder is intended to be pyrolized prior to the fusion of the glass insulation and it comprises a minor amount of cobalt or manganese chelate. Our insulation may comprise glass particles suspended in enamel and the amount of chelate will preferably comprise 0.53% by weight. We prefer to use cobaltous or manganous ethylenediamine tetraacetate.
We have invented a magnet wire enamel comprising l-25 parts by weight of fusible powdered glass, 75-90 parts by weight of organic enamel such as terephthalate modified phenyl-methyl-siloxane resin, and 0.53 parts by weight of manganous or cobaltous chelate.
Example In an example a magnet wire enamel was formulated as follows:
Lbs.
Finely powdered aluminum borosilicate glass 2.8
Cobaltous ethylenediamine tetraacetate 0.14
Manganous ethylenediamine tetraacetate 0.14 Terephthala-te polyester modified phenyl-methylsiloxane (50% solids, in Xylene) 14.0
The slurry of the example was applied to a nickelplated copper wire and baked at 250 C. to form a uniform coating. The wire was then wound into a coil and placed in an oven at 500 C. for 15 minutes to burn off the enamel. Thereafter the oven temperature was raised to 650 C. for /2 hour to fuse the insulation. When it Was subsequently cooled the coil wire forming the coil was found to be insulated with a uniform coating of fused glass.
Features of our invention are shown in the appended drawing.
The drawing shows a section of a coil made to our in vention prior to pyrolizing the enamel.
In the drawing a coil is indicate-d generally by the numeral 10 made up of a plurality of turns of a magnet wire 11. The wire 11 has a copper conductor 12 with an outer plating 13 of nickel to prevent oxidation of the copper at high temperatures of operation. The nickel coating is much exaggerated in the drawing and it will be understood that we do not wish to limit our invention to any particular selection of conductor material. Surrounding the conductor 12 is an organic enamel 14 in which has been suspended and baked prior to the formation of the coil 10 a sufficient percentage of glass particles 16 to completely coat the conductor 12 after the enamel 14 has been pyrolized and the glass has been fused. It is a feature of the enamel 14 that it comprises a small percentage of manganese and cobalt chelate.
The electrical system comprising the wire 12 and glasscomprising enamel 14 may be shipped and stored for long periods prior to forming into windings.
We have invented new and useful articles and compositions for which we desire an award of Letters Patent.
We claim:
1. An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an organic binder supporting said insulation said binder being pyrolized prior to the fusion of said insulation, and a minor amount of metal chelate selected from the class consisting of cobalt and manganese chelates compounded in said binder.
2. An electrical system comprising a conductor, an enamel coating said conductor, fusible glass particles suspended in said enamel, said enamel being pyrolized prior to the fusion of said particles, and a minor amount of metal chelate selected from the class consisting of cobalt and manganese chelates compounded in said binder.
3. An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an enamel binder supporting said insulation said binder being pryolized prior to the fusion of said insulation, and about 0.53% by weight of a cobalt chelate compounded in said binder.
4. The system of claim 3 wherein said chelate in cobaltous ethylenediamine tetraacetate.
5. An electrical system comprising a conductor, fusible glass insulation surrounding said conductor, an enamel binder supporting said insulation said binder being pyrolized prior to the fusion of said insulation and about 0.54% by weight of a manganese chelate compounded in said binder.
6. The system of claim 5 wherein said chelate is manganous ethylenediamine tetraacetate.
References Cited UNITED STATES PATENTS 2,465,296 3/1949 Swiss 260-45.75 X 3,059,046 10/ 1962 Westervelt et al. 117231 3,078,186 2/1196'3 Tierney l17-231 3,089,787 5/1963 Sattler et al. 117-231 3,093,511 6/1963 Weisel et a1. 106-291 3,119,897 1/1964 Coper 174110 WILLIAM L. JARVIS, Primary Examiner.
Claims (1)
1. AN ELECTRICAL SYSTEM COMPRISING A CONDUCTOR, FUSIBLE GLASS INSULATION SURROUNDING SAID CONDUCTOR, AN ORGANIC BINDER SUPPORTING SAID INSULATION SAID BINDER BEING PYROLIZED PRIOR TO THE FUSION OF SAID INSULATION, AND A MINOR AMOUNT OF METAL CHELATE SELECTED FROM THE CLASS CONSISTING OF COBALT AND MANGANESE CHELATES COMPOUNDED IN SAID BINDER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US618547A US3367796A (en) | 1962-03-08 | 1966-07-13 | Pyrolizable enamel coated wire comprising manganese and cobalt chelates |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US178349A US3294731A (en) | 1962-03-08 | 1962-03-08 | Pyrolizable enamel from mn and co chelates, glass, and siloxane resin |
| US618547A US3367796A (en) | 1962-03-08 | 1966-07-13 | Pyrolizable enamel coated wire comprising manganese and cobalt chelates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3367796A true US3367796A (en) | 1968-02-06 |
Family
ID=26874226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US618547A Expired - Lifetime US3367796A (en) | 1962-03-08 | 1966-07-13 | Pyrolizable enamel coated wire comprising manganese and cobalt chelates |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3367796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636242A (en) * | 1968-12-09 | 1972-01-18 | Ericsson Telefon Ab L M | An electric conductor wire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465296A (en) * | 1944-09-20 | 1949-03-22 | Westinghouse Electric Corp | Metal chelate stabilized organic silicon compositions and products thereof |
| US3059046A (en) * | 1958-05-16 | 1962-10-16 | Westinghouse Electric Corp | Solid inorganic insulation for metallic conductors |
| US3078186A (en) * | 1960-07-26 | 1963-02-19 | Westinghouse Electric Corp | Ceramic potting composition and method of encapsulating an electrical article therewith |
| US3089787A (en) * | 1959-12-07 | 1963-05-14 | Westinghouse Electric Corp | Electrical insulating coating composition, method, and coated article |
| US3093511A (en) * | 1960-02-17 | 1963-06-11 | Westinghouse Electric Corp | Solid inorganic insulation for metallic conductors and electrical members insulated therewith |
| US3119897A (en) * | 1959-06-16 | 1964-01-28 | Daven Company | Insulated wire for high temperature use and coils made therefrom |
-
1966
- 1966-07-13 US US618547A patent/US3367796A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465296A (en) * | 1944-09-20 | 1949-03-22 | Westinghouse Electric Corp | Metal chelate stabilized organic silicon compositions and products thereof |
| US3059046A (en) * | 1958-05-16 | 1962-10-16 | Westinghouse Electric Corp | Solid inorganic insulation for metallic conductors |
| US3119897A (en) * | 1959-06-16 | 1964-01-28 | Daven Company | Insulated wire for high temperature use and coils made therefrom |
| US3089787A (en) * | 1959-12-07 | 1963-05-14 | Westinghouse Electric Corp | Electrical insulating coating composition, method, and coated article |
| US3093511A (en) * | 1960-02-17 | 1963-06-11 | Westinghouse Electric Corp | Solid inorganic insulation for metallic conductors and electrical members insulated therewith |
| US3078186A (en) * | 1960-07-26 | 1963-02-19 | Westinghouse Electric Corp | Ceramic potting composition and method of encapsulating an electrical article therewith |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636242A (en) * | 1968-12-09 | 1972-01-18 | Ericsson Telefon Ab L M | An electric conductor wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: ATLANTIC RICHFIELD COMPANY, A PA CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANACONDA COMPANY THE, A DE CORP;REEL/FRAME:003992/0218 Effective date: 19820115 |
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| AS | Assignment |
Owner name: CHASE COMMERCIAL CORPORATION, 5775 F PEACH TREE DU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANAMAG A LIMITED PARTNERSHIP;REEL/FRAME:004198/0472 Effective date: 19830928 |
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| AS | Assignment |
Owner name: ANAMAG LIMITED PARTNERSHIP, OF DE. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ATLANTIC RICHFIELD COMPANY;REEL/FRAME:004197/0323 Effective date: 19830929 |
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| AS | Assignment |
Owner name: CONGRESS FINANCIAL CORPORATION, 1133 AVENUE OF THE Free format text: SECURITY INTEREST;ASSIGNOR:ANAMAG A LIMITED PARTNERSHIP;REEL/FRAME:004538/0421 Effective date: 19860404 |
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| AS | Assignment |
Owner name: CHASE COMMERCIAL CORPORATION, 5575F PEACH TREE DUN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANAMAG INC., A DE. CORP.;REEL/FRAME:004654/0304 Effective date: 19861001 Owner name: CHASE COMMERCIAL CORPORATION, A NEW JERSEY CORP.,G Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ANAMAG INC., A DE. CORP.;REEL/FRAME:004654/0304 Effective date: 19861001 |
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| AS | Assignment |
Owner name: CONGRESS FINANCIAL CORPORATION (CENTRAL) AND CONGR Free format text: SECURITY INTEREST;ASSIGNOR:ANAMAG INC.;REEL/FRAME:004655/0648 Effective date: 19861001 Owner name: ANAMAG, INC., GLEN HILL OFFICE PARK 8, 739 ROOSEVE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANAMAG A LIMITED PARTNERSHIP BY: ANAMAG GENERAL, INC., GENERAL PARTNER;REEL/FRAME:004662/0042 Effective date: 19861015 Owner name: ANAMAG, INC., A CORP OF DE., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ANAMAG A LIMITED PARTNERSHIP BY: ANAMAG GENERAL, INC., GENERAL PARTNER;REEL/FRAME:004662/0042 Effective date: 19861015 |
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| AS | Assignment |
Owner name: GLENFED FINANCIAL CORPORATION, 104 CARNEGIE CENTER Free format text: SECURITY INTEREST;ASSIGNOR:MAGNET WIRE COMPANY THE, A CORP OF DE.;REEL/FRAME:004932/0659 Effective date: 19880624 |