WO1984000245A1 - Wire and cable products with improved jacketing - Google Patents

Wire and cable products with improved jacketing Download PDF

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Publication number
WO1984000245A1
WO1984000245A1 PCT/US1983/000989 US8300989W WO8400245A1 WO 1984000245 A1 WO1984000245 A1 WO 1984000245A1 US 8300989 W US8300989 W US 8300989W WO 8400245 A1 WO8400245 A1 WO 8400245A1
Authority
WO
WIPO (PCT)
Prior art keywords
formulation
chlorinated polyethylene
polymeric material
wire
amount
Prior art date
Application number
PCT/US1983/000989
Other languages
English (en)
French (fr)
Inventor
Paul Salvatore Cardello
Robert Michael Wade
Marwick Harrison Solomon
Original Assignee
Anaconda Ericsson Inc
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 Anaconda Ericsson Inc filed Critical Anaconda Ericsson Inc
Publication of WO1984000245A1 publication Critical patent/WO1984000245A1/en
Priority to SE8401091A priority Critical patent/SE8401091D0/sv

Links

Classifications

    • 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
    • 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
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion

Definitions

  • the invention relates to wire and cable products utilizing a formulation of materials based upon chlorinated polyethylene (CPE) polymer as an overall and individual component jacket for the same.
  • CPE chlorinated polyethylene
  • the material of the outer jacket not sustain combustion thereby to serve as a fuel in the proliferation of the fire, and, considering many environments, such as those below ground, it is important to prevent as best as possible the emission or smoke and the evolution of gases from the material of the outer jacket during burning.
  • the present invention directed to wire and cable products and the like, seeks to overcome various problems and disadvantages of the prior art in providing an outer jacket formed from a polymeric material comprising a formulation of materials based upon chlorinated polyethylene polymer.
  • the formulation is thermoplastic, capable of extrusion about the core of the product and may be cross-linked in situ. This characteristic permits the use of the formulation as an outer jacketing material for wire and cable cores having heat sensitive insulation that would otherwise deform if exposed to typical vulcanization parameters.
  • the formulation lends itself particularly well to use with cables of a size that may not be conveniently subjected to vulcanization.
  • the formulation of materials based on chlorinated polyethylene polymer also, possesses a radiation resistance which qualifies it for use as a jacketing material for wire and cable products in nuclear generation stations.
  • the chlorinated polyethylene polymer which may contain varying amounts of chlorine provides a resistance to flame.
  • the measure of flame resistance of the formulation of materials based on chlorinated polyethylene polymer which may be increased through the incorporation of additional flame retarders has been found to be substantially equal to other polymeric materials containing a significantly higher chlorine content, such as polyvinyl chloride, yet the formulation releases gaseous chlorine in a significantly more gradual manner.
  • the formulation of materials based on chlorinated polyethylene polymer may be radiation cross-linked. As such, it has been found that the formulation yields an outer jacket material having improved physical properties within the thermal range thereby to make possible the use of jackets of a cross section less than that of jackets commonly used for the same function.
  • Wire and cable products including those used in instrumentation and control cable functions generally are formed with a core having either a single or a family of insulated conductors encased by an insulating sheath which, in turn, is enclosed by an outer jacket.
  • the outer jacket provides many functions including that of imparting physical strength for use in a host of environments, a flame resistance capability, and others as are well-known.
  • the present invention seeks to improve upon the known prior art wire and cable products by providing a formulation (or compound) of materials based on chlorinated polyethylene (CPE) polymer which may advantageously be used as an outer jacketing material for such products.
  • CPE chlorinated polyethylene
  • the formulation of materials based on CPE polymer in use as an overall and individual component jacket causes those products with which it is used to display features not heretofore derived in the prior art, and enhances certain other inherent properties of CPE polymer, such as resistance to heat deformation, coefficient of friction, and toughness.
  • the formulation enhances the flame resistance capability of CPE polymer which, similarly to other chlorinated elastomeric polymers, such as polyvinyl chloride (PVC) , generally is considered as being resistant to flame so that it does not sustain combustion.
  • PVC polyvinyl chloride
  • the enhanced flame resistance capability renders the formulation usefull as a jacketing material in many environments, such as underground environ ments wherein the characteristic of non-support of combustion is an important consideration.
  • CPE polymer and PVC polymer are considered to provide an excellent measure of flame resistance, it may be demonstrated, by thermal gravimetric analysis, that the release of chlorine in a flaming mode from CPE polymer is far more gradual than the release of chlorine from PVC polymer.
  • CPE polymer generally including chlorine in an amount of about 25%, although the leVel may be as high as 50%
  • PVC polymer generally including chlorine in an amount in excess of 50%, normally about 58%) it may be seen that CPE polymer is the preferred base resin.
  • the formulation possesses a radiation resistance substantially equal to that of chlorosulfonated polyethylene (CSP) polymer, such as that vended under the trade name Hypalon by the du Pont Company.
  • CSP chlorosulfonated polyethylene
  • a comparison of stress to strain (modulus) derived from the formulation and typical CSP would tend to indicate that the formulation is preferred.
  • Antiomony Oxide Harshaw Chemical 12.5 FR-300 BA, decabromodiphenyl oxide, 5.0
  • a sample, Sample III, was prepared according to Example II, except that the amount of FR-300 BA was doubled, that is, increased to 20.0 parts.
  • the data demonstrates an improvement in flame resistance of Sample II relative to Sample I , and an improvement in flame resistance of Sample III relative to Sample II .
  • the formulation does not require vulcanization, in the sense of heat and pressure, to develop those physical properties through vulcanization such as elasticity, strengh and stability, that render the compound entirely adequate for the application as an overall and individual component jacket for wire and cable products.
  • the formulation which is thermoplastic may be extruded over wire and cable products, and cross-linked in place. This particular characteristic permits extension of the formulation over heat sensitive insulation that would deform if exposed to the heat and pressure required for vulcanization. The deformation may produce a change in dimensional and/or electrical properties.
  • cores such as coaxial cores containing air in the form of cellular insulations, or spacer threads or other devices to maintain a specific air space, all of which determine, at least in part, transmission characteristics may be deformed.
  • the formulation also, may be used with armored cables or other types of cables that may not be conveniently vulcanized because of their large size.
  • the formulation har. particular utility with certain instrumentation cable application, including coaxials, triaxials and the like which require the use of very small, and, therefore, delicate conductors which may be easily damaged when vulcanized.
  • the formulation may also be cross-linked under exposure to radiation, as will be set out below.
  • a sunlight resistance test was carried out on several non-radiation cross-linked cable samples, particularly samples of 7/C #12 control cable jacketed with the compound of Sample II, Sample III and Sample IV.
  • the test was in accordance with UL 854, 36.A. To this end, the samples were exposed in an Atlas "Weather-O-Meter" for 300 hours and the physical properties were tested.
  • Four cable samples of each of Samples II, III and-IV were tested, and the average values of tensile strength (PSI) and elongation (%) were noted, both before and after exposure.
  • the percentage of the original property must at least equal 85%. This was found to be the case with the average of each of the samples, above. Testing was also carried out on irradiated samples, particularly samples characterized as 1/C #14 cable jacketed with the compound of Sample II of both large wall and thin wall. The samples were irradiated by an electron beam. Testing provided the following results:
  • the compound readily cross-links when exposed to radiation.
  • the fact is demonstrated by the above results , namely the increase in original tensile strength and 100% modulus along with a decrease in elongation (1st and 3rd Samples) . Even more significant were the test results for the 2nd Sample (the most highly oriented of the three) which actually demonstrated an improvement in all properties, in that the percent elongation increased along with an increase in the tensile strength and modulus.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
PCT/US1983/000989 1982-06-29 1983-06-29 Wire and cable products with improved jacketing WO1984000245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8401091A SE8401091D0 (sv) 1982-06-29 1984-02-28 Trad- och kabelprodukter med forbettrad mantel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39349182A 1982-06-29 1982-06-29

Publications (1)

Publication Number Publication Date
WO1984000245A1 true WO1984000245A1 (en) 1984-01-19

Family

ID=23554902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1983/000989 WO1984000245A1 (en) 1982-06-29 1983-06-29 Wire and cable products with improved jacketing

Country Status (2)

Country Link
SE (1) SE8401091D0 (sv)
WO (1) WO1984000245A1 (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364717A1 (en) * 1988-09-06 1990-04-25 The Geon Company Flame and smoke retardant cable insulation and jacketing compositions
US20130118746A1 (en) * 2011-11-11 2013-05-16 Daniel Delp Composite Cable Systems For Use In An In Situ Oil Production Process
CN103756171A (zh) * 2014-01-10 2014-04-30 安徽瑞升电气科技有限公司 一种高阻燃性无卤电缆料

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006787A (en) * 1958-09-12 1961-10-31 Gen Cable Corp Method of improving properties of flame resistant polyethylene and products thereof
US4022945A (en) * 1973-09-26 1977-05-10 General Electric Company Electric conductor product having a flame resistant insulation
US4096346A (en) * 1973-01-31 1978-06-20 Samuel Moore And Company Wire and cable
US4280225A (en) * 1977-08-24 1981-07-21 Bicc Limited Communication systems for transportation undertakings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3006787A (en) * 1958-09-12 1961-10-31 Gen Cable Corp Method of improving properties of flame resistant polyethylene and products thereof
US4096346A (en) * 1973-01-31 1978-06-20 Samuel Moore And Company Wire and cable
US4022945A (en) * 1973-09-26 1977-05-10 General Electric Company Electric conductor product having a flame resistant insulation
US4280225A (en) * 1977-08-24 1981-07-21 Bicc Limited Communication systems for transportation undertakings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0364717A1 (en) * 1988-09-06 1990-04-25 The Geon Company Flame and smoke retardant cable insulation and jacketing compositions
US20130118746A1 (en) * 2011-11-11 2013-05-16 Daniel Delp Composite Cable Systems For Use In An In Situ Oil Production Process
CN103756171A (zh) * 2014-01-10 2014-04-30 安徽瑞升电气科技有限公司 一种高阻燃性无卤电缆料

Also Published As

Publication number Publication date
SE8401091L (sv) 1984-02-28
SE8401091D0 (sv) 1984-02-28

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