WO2000074934A1 - Improved battery cable - Google Patents

Improved battery cable Download PDF

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Publication number
WO2000074934A1
WO2000074934A1 PCT/US2000/015668 US0015668W WO0074934A1 WO 2000074934 A1 WO2000074934 A1 WO 2000074934A1 US 0015668 W US0015668 W US 0015668W WO 0074934 A1 WO0074934 A1 WO 0074934A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery cable
metallocene catalyst
accordance
catalyst polyolefin
cross
Prior art date
Application number
PCT/US2000/015668
Other languages
French (fr)
Inventor
Nelson Hildreth
Original Assignee
Champlain Cable Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Champlain Cable Corporation filed Critical Champlain Cable Corporation
Publication of WO2000074934A1 publication Critical patent/WO2000074934A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/12—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Definitions

  • This invention relates to battery cables for automobiles and other land vehicles and, more particularly, to an improved battery cable having superior flexibility, high temperature resistance, and abrasion resistance.
  • Battery cables must meet North American Automotive Manufacturer standards, such as ISO- 6722, and the Society of Automotive Engineer (SAE) standard J1127, for flame retardancy.
  • the ISO- 6722 standard requires that the cable be rated for use at 150° C. It would be desirable to insulate the conductive core of a battery cable with a metallocene catalyst polyolefin jacket that provides the desired flame retardancy at the rated temperature of 150° C.
  • Metallocene catalyst polyolefins are well known in the art for their low moduli, but have been used generally for other applications, such as impact modifiers to other polymers . They have not been used as battery cable insulation because it has been difficult to extrude this material to provide an insulative jacket for the conductive core of the cable.
  • this type of material can be processed to provide an insulative jacket for a battery cable by using a tube type extrusion process, which process heretofore has been used to extrude other materials, such as fluorinated ethylene propylenes (FEPs) .
  • FEPs fluorinated ethylene propylenes
  • the metallocene catalyst polyolefin of this invention has been stabilized with a zinc salt of methyl- mercaptobenzimidazole, hindered with a phenolic antioxidant (HPA) , and formulated with a flame retardant m accordance with SAE J1127.
  • the polymer has a density less than 0.915 gms/cc.
  • the insulation is cross-linked by irradiation.
  • the metallocene catalyst polyolefms of this invention have superior abrasion resistance than do other, cross- linked polyolefms and polyvinylchloride insulations currently being manufactured to the SAE J1127 standard.
  • a battery cable comprising an inner conductive core that is jacketed by an outer layer of insulation comprising a metallocene catalyst polyethylene that has been tube extruded over the inner conductive core.
  • the inner conductive core can comprise a stranded copper wire per the SAE J1127 standard.
  • the metallocene catalyst polyolefin insulation has been stabilized with a zinc salt of methylmercaptobenzimidazole, hindered with a phenolic antioxidant (HPA), and formulated with a flame retardant.
  • the polymer has a density less than 0.915 gms/cc.
  • the insulation is cross-linked by irradiation.
  • the battery cable can withstand heating at 150° C. for 3,000 hours.
  • the battery cable exhibits superior abrasion resistance, flexibility, high temperature resistance, and flame retardancy. The superior abrasion resistance allows the cable to meet industry standards with a thinner insulation thickness .
  • FIGURE 1 illustrates a cut-away perspective view of the battery cable of this invention.
  • FIGURE 2 depicts a typical tubular die used in the extrusion process for the metallocene catalyst material jacket of the battery cable shown in FIGURE 1.
  • the invention features a battery cable construction comprising an inner conductive core of stranded copper wire that is jacketed with an outer layer of a metallocene catalyst polyethylene.
  • the metallocene catalyst polyolefin insulation provides superior abrasion resistance than do other, cross-linked polyolefins and polyvinylchloride insulations currently being manufactured to the SAE J1127 standard.
  • the cable 10 comprises a conductive core 12 of strands of copper wire.
  • the insulation 14 comprises a tube extruded layer 14 of metallocene catalyst polyethylene.
  • the metallocene catalyst polyethylene is mixtured with a flame retardant material for the insulative purpose of providing the battery cable 10 with properties that will meet the flame retardancy and temperature requirements of the ISO-6722 and the SAE J1127 standards.
  • the metallocene catalyst polyethylene material has not been used, owing to its inability to be easily extruded over the conductive core 12.
  • other materials such as XLPE and polyvinylchloride (PVC) , have been used for battery cable insulation.
  • metallocene catalyst polyethylene can be layered over the conductor 12 by a process of tube extrusion.
  • Tube extrusion is usually reserved for insulation materials such as fluoro-ethylene propylene (FEP) .
  • FEP fluoro-ethylene propylene
  • Tube extrusion allows the tough metallocene catalyst polyethylene to be layered over the inner conductive core 12, as shown by the typical tubular extrusion die, illustrated in FIGURE 2.
  • the tubular extrusion die 20 comprises two melt flow channels 22 and 24, respectively, which allow the molten metallocene catalyst polyethylene to flow over the inner conductive wire 12, which is advanced through the tubular extrusion die 20 (arrow 26) .
  • the insulator 28 supporting the flow channels 22 and 24, and the advancing wire 12 must withstand operating temperatures and abrasion of the wire 12.
  • the die and the advancing wire must be heated to temperatures often exceeding the melt temperature in order to provide the proper viscosity, and prevent melt fracture when the melt coats the wire 12.
  • the melt material is often pressure fed through the flow channels 22 and 24 when the material has a high shear rate.
  • Typical extrusion temperature is between 180° and 210° C.
  • the metallocene catalyst polyolefin will not flow through the die without forming a rough alligator skin, thus making it impossible to use as a battery cable insulator.
  • the tubular extrusion die allows the jacketing material to be heated to the high temperatures needed for flowability.
  • the insulation 14 of cable 10 provides the battery cable with superior flexibility, high temperature resistance, and abrasion resistance, as illustrated in comparative Table I, shown below:
  • the metallocene catalyzed polyolefin of this invention is irradiation cross-linked to a doseage of 120 kiloGrays.
  • the metallocene catalyzed olefin is effectively stabilized with ZMB-2 and a phenolic type antioxidant. It can withstand heating to 150° C. for 3,000 hours as specified in the ISO-6722 standard (January 1996 edition) .
  • Metallocene polymers that can be used for the insulation layer 14 comprise: Engage EG 8100, made by DuPont-Dow, and Exact 4003, made by Exxon. Having thus described the invention, what is desired to be protected by Letters Patent is presented in the subsequently appended claims.

Abstract

A battery cable construction (10) is described that has an inner conductive core of a cross-linked stranded copper wire (12), jacketed with an outer layer of a metallocene catalyst polyolefin (14). The metallocene catalyst polyolefin jacket provides abrasion resistance superior to other cross-linked polyolefins and polyvinylchloride insulations currently being manufactured to the flane retardant SAE J1127 standard.

Description

IMPROVED BATTERY CABLE
Field of the Invention:
This invention relates to battery cables for automobiles and other land vehicles and, more particularly, to an improved battery cable having superior flexibility, high temperature resistance, and abrasion resistance.
BACKGROUND OF THE INVENTION
Battery cables must meet North American Automotive Manufacturer standards, such as ISO- 6722, and the Society of Automotive Engineer (SAE) standard J1127, for flame retardancy. The ISO- 6722 standard requires that the cable be rated for use at 150° C. It would be desirable to insulate the conductive core of a battery cable with a metallocene catalyst polyolefin jacket that provides the desired flame retardancy at the rated temperature of 150° C. Metallocene catalyst polyolefins are well known in the art for their low moduli, but have been used generally for other applications, such as impact modifiers to other polymers . They have not been used as battery cable insulation because it has been difficult to extrude this material to provide an insulative jacket for the conductive core of the cable.
It has been discovered that this type of material can be processed to provide an insulative jacket for a battery cable by using a tube type extrusion process, which process heretofore has been used to extrude other materials, such as fluorinated ethylene propylenes (FEPs) .
The metallocene catalyst polyolefin of this invention has been stabilized with a zinc salt of methyl- mercaptobenzimidazole, hindered with a phenolic antioxidant (HPA) , and formulated with a flame retardant m accordance with SAE J1127. The polymer has a density less than 0.915 gms/cc. The insulation is cross-linked by irradiation.
The metallocene catalyst polyolefms of this invention have superior abrasion resistance than do other, cross- linked polyolefms and polyvinylchloride insulations currently being manufactured to the SAE J1127 standard.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a battery cable comprising an inner conductive core that is jacketed by an outer layer of insulation comprising a metallocene catalyst polyethylene that has been tube extruded over the inner conductive core. The inner conductive core can comprise a stranded copper wire per the SAE J1127 standard. The metallocene catalyst polyolefin insulation has been stabilized with a zinc salt of methylmercaptobenzimidazole, hindered with a phenolic antioxidant (HPA), and formulated with a flame retardant. The polymer has a density less than 0.915 gms/cc. The insulation is cross-linked by irradiation. The battery cable can withstand heating at 150° C. for 3,000 hours. The battery cable exhibits superior abrasion resistance, flexibility, high temperature resistance, and flame retardancy. The superior abrasion resistance allows the cable to meet industry standards with a thinner insulation thickness .
It is an object of this invention to provide an improved battery cable.
It is another object of the invention to provide a battery cable, the outer jacket material of which comprises a metallocene catalyst polyethylene that has been tube extruded over the inner conductive core. It is a further object of this invention to provide a battery cable having superior abrasion resistance, flexibility, high temperature resistance, and flame retardancy.
BRIEF DESCRIPTION OF THE DRAWINGS
A complete understanding of the present invention may be obtained by reference to the accompanying drawing, when considered in conjunction with the subsequent detailed description, in which:
FIGURE 1 illustrates a cut-away perspective view of the battery cable of this invention; and
FIGURE 2 depicts a typical tubular die used in the extrusion process for the metallocene catalyst material jacket of the battery cable shown in FIGURE 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Generally speaking, the invention features a battery cable construction comprising an inner conductive core of stranded copper wire that is jacketed with an outer layer of a metallocene catalyst polyethylene. The metallocene catalyst polyolefin insulation provides superior abrasion resistance than do other, cross-linked polyolefins and polyvinylchloride insulations currently being manufactured to the SAE J1127 standard.
Now referring to FIGURE 1, a battery cable 10 is shown in a cut-away perspective view. The cable 10 comprises a conductive core 12 of strands of copper wire. The insulation 14 comprises a tube extruded layer 14 of metallocene catalyst polyethylene. The metallocene catalyst polyethylene is mixtured with a flame retardant material for the insulative purpose of providing the battery cable 10 with properties that will meet the flame retardancy and temperature requirements of the ISO-6722 and the SAE J1127 standards. Normally, the metallocene catalyst polyethylene material has not been used, owing to its inability to be easily extruded over the conductive core 12. Thus, other materials, such as XLPE and polyvinylchloride (PVC) , have been used for battery cable insulation.
However, it has been discovered that metallocene catalyst polyethylene can be layered over the conductor 12 by a process of tube extrusion. Tube extrusion is usually reserved for insulation materials such as fluoro-ethylene propylene (FEP) . Tube extrusion, however, allows the tough metallocene catalyst polyethylene to be layered over the inner conductive core 12, as shown by the typical tubular extrusion die, illustrated in FIGURE 2.
Referring to FIGURE 2, a typical tubular extrusion die 20 is illustrated. The tubular extrusion die 20 comprises two melt flow channels 22 and 24, respectively, which allow the molten metallocene catalyst polyethylene to flow over the inner conductive wire 12, which is advanced through the tubular extrusion die 20 (arrow 26) . The insulator 28 supporting the flow channels 22 and 24, and the advancing wire 12 must withstand operating temperatures and abrasion of the wire 12. The die and the advancing wire must be heated to temperatures often exceeding the melt temperature in order to provide the proper viscosity, and prevent melt fracture when the melt coats the wire 12. The melt material is often pressure fed through the flow channels 22 and 24 when the material has a high shear rate. Typical extrusion temperature is between 180° and 210° C.
In a normal extrusion process, the metallocene catalyst polyolefin will not flow through the die without forming a rough alligator skin, thus making it impossible to use as a battery cable insulator. However, the tubular extrusion die allows the jacketing material to be heated to the high temperatures needed for flowability.
The insulation 14 of cable 10 provides the battery cable with superior flexibility, high temperature resistance, and abrasion resistance, as illustrated in comparative Table I, shown below:
TABLE I
BENCH MARKING Conductor 18 AWG 19 strands of 0.0092 inches
PROPERTIES SAE J1128 PVC Chemically Irradiation Irradiation Irradiation
Requirements cross- 1 inked cross- 1 inked cross- 1 inked cross- 1 inked polyolefin Metallocene polyolefin polyolefin catalyzed polyolefin
Diameter 0.079 0.076 0.077 0.078 0.076
Tensile (psi) (%) N/R 3152 3853 4300 2100 3013
Elongation 150 183 270 500 300 384
SAE J1128
Pinch Test 7lb. 8.5 9.0 10 8.9 10.2
SAEJ1128 Abrasion
Type SXL
0.45 kg. wt. SXL-700mm 789 488 1172 465 1095
SAEJ1128
Flame Test 70 sec. Max. pass pass pass pass pass
The metallocene catalyzed polyolefin of this invention is irradiation cross-linked to a doseage of 120 kiloGrays.
The metallocene catalyzed olefin is effectively stabilized with ZMB-2 and a phenolic type antioxidant. It can withstand heating to 150° C. for 3,000 hours as specified in the ISO-6722 standard (January 1996 edition) .
Metallocene polymers that can be used for the insulation layer 14 comprise: Engage EG 8100, made by DuPont-Dow, and Exact 4003, made by Exxon. Having thus described the invention, what is desired to be protected by Letters Patent is presented in the subsequently appended claims.
What is claimed is:

Claims

1. A battery cable, comprising an inner conductive core covered by an outer insulation jacket layer comprising metallocene catalyst polyolefin, that is rated for a cross- linked operation at 150° C.
2. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer comprises a phenolic antioxidant stabilizer.
3. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer comprises a zinc salt of methylmercaptobenzimidazole .
4. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer is irradiation cross-linked.
5. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer comprises polyethylene.
6. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer is tube extruded over said inner conductive core.
7. The battery cable in accordance with claim 1, wherein said metallocene catalyst polyolefin layer has a density less than approximately 0.915 gms/cc.
8. The battery cable in accordance with claim 1, wherein said inner conductive core comprises stranded wire.
9. The battery cable in accordance with claim 1, wherein the metallocene catalyst polyolefin comprises a flame retardant . o
10. The battery cable in accordance with claim 1, wherein said metallocene catalyst layer contains a reactive monomer to promote cross-linking such as tri-methylolpropane trimethacrylate .
11. A battery cable, comprising an inner conductive core covered by an outer, tube extruded, insulation jacket layer, comprising a cross-linked metallocene catalyst polyolefin that is rated for operation at 150° C.
12. The battery cable in. accordance with claim 11, wherein said metallocene catalyst polyolefin layer comprises a phenolic antioxidant stabilizer.
13. The battery cable in accordance with claim 11, wherein said metallocene catalyst polyolefin layer comprises a zinc salt of methylmercaptobenzimidazole .
14. The battery cable in accordance with claim 11, wherein said metallocene catalyst polyolefin layer is irradiation cross-linked.
15. The battery cable in accordance with claim 11, wherein said metallocene catalyst polyolefin layer has a density less than approximately 0.915 gms/cc.
16. The battery cable in accordance with claim 11, wherein said inner conductive core comprises stranded wire.
17. The battery cable in accordance with claim 11, wherein the metallocene catalyst polyolefin comprises a flame retardant .
18. The battery cable in accordance with claim 11, wherein said metallocene catalyst layer contains a reactive monomer to promote cross -linking such as tri-methylolpropane trimethacrylate.
PCT/US2000/015668 1999-06-07 2000-06-07 Improved battery cable WO2000074934A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32645999A 1999-06-07 1999-06-07
US09/326,459 1999-06-07

Publications (1)

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WO2000074934A1 true WO2000074934A1 (en) 2000-12-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010051422A1 (en) * 2008-10-31 2010-05-06 E. I. Du Pont De Nemours And Company Articles with highly abrasion-resistant polyolefin layers
EP2410010A1 (en) * 2005-10-25 2012-01-25 General Cable Technologies Corporation Improved lead-free insulation compositions containing metallocene polymers
CN105398150A (en) * 2015-11-24 2016-03-16 江苏华富储能新技术股份有限公司 Weather-proof insulating material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805218A (en) * 1973-04-04 1974-04-16 Atomic Energy Commission Battery cable assembly
US4812505A (en) * 1987-05-18 1989-03-14 Union Carbide Corporation Tree resistant compositions
US4871705A (en) * 1988-06-16 1989-10-03 Exxon Chemical Patents Inc. Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst
US5021013A (en) * 1990-06-04 1991-06-04 Dorothy Wiesler Battery cable connector
US5229478A (en) * 1988-06-16 1993-07-20 Exxon Chemical Patents Inc. Process for production of high molecular weight EPDM elastomers using a metallocene-alumoxane catalyst system
US5281766A (en) * 1992-08-07 1994-01-25 Champlain Cable Corporation Motor lead wire
US5612510A (en) * 1994-10-11 1997-03-18 Champlain Cable Corporation High-voltage automobile and appliance cable
US6060572A (en) * 1996-04-10 2000-05-09 Uniroyal Chemical Company, Inc. Process for producing polyolefin elastomer employing a metallocene catalyst

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805218A (en) * 1973-04-04 1974-04-16 Atomic Energy Commission Battery cable assembly
US4812505A (en) * 1987-05-18 1989-03-14 Union Carbide Corporation Tree resistant compositions
US4871705A (en) * 1988-06-16 1989-10-03 Exxon Chemical Patents Inc. Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst
US5229478A (en) * 1988-06-16 1993-07-20 Exxon Chemical Patents Inc. Process for production of high molecular weight EPDM elastomers using a metallocene-alumoxane catalyst system
US5021013A (en) * 1990-06-04 1991-06-04 Dorothy Wiesler Battery cable connector
US5281766A (en) * 1992-08-07 1994-01-25 Champlain Cable Corporation Motor lead wire
US5612510A (en) * 1994-10-11 1997-03-18 Champlain Cable Corporation High-voltage automobile and appliance cable
US6060572A (en) * 1996-04-10 2000-05-09 Uniroyal Chemical Company, Inc. Process for producing polyolefin elastomer employing a metallocene catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2410010A1 (en) * 2005-10-25 2012-01-25 General Cable Technologies Corporation Improved lead-free insulation compositions containing metallocene polymers
WO2010051422A1 (en) * 2008-10-31 2010-05-06 E. I. Du Pont De Nemours And Company Articles with highly abrasion-resistant polyolefin layers
CN105398150A (en) * 2015-11-24 2016-03-16 江苏华富储能新技术股份有限公司 Weather-proof insulating material

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