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UST900019I4 - Iinutes at - Google Patents

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Publication number
UST900019I4
UST900019I4 US900019DH UST900019I4 US T900019 I4 UST900019 I4 US T900019I4 US 900019D H US900019D H US 900019DH US T900019 I4 UST900019 I4 US T900019I4
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Prior art keywords
cure
ldpe
murphy
polyethylene
cured
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/06Polyethene
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/441Insulators 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 from alkenes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/202Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers

Abstract

PEROXIDE CURED POLYETHYLENE HOMO-AND COPOLYMERS HAVING IMPROVED PHYSICAL PROPERTIES, I.E. GREATLY REDUCED VOID FORMATION AND INCREASED CURE RATE AND STATE, ARE PREPARED BY INCORPORATION OF MINOR AMOUNTS OF EPDM''S AND/OR COAGENTS SUCH AS TRIALLYL CYANURATE, TRIMETHYLOL PROPANE TRIMETHACRYLATE, ETHYLENE DIMETHACRYLATE, MPHENYLENE BIS MATEIMIDE, ETC. THESE CURED POLYMERS ARE USEFUL AS ELECTRICAL INSULATORS, E.G. FOR HIGH VOLTAGE WIRE AND CABLE.

Description

DEFENSW Ulllfll UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The flies of these applications are available to the publlc for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofllce makes no assertion as to the novelty of the disclosed subject matter;

PUBLISHED JULY 25, 1972 T900,019 POLYETHYLENE John J. Murphy, In, 719 Springfield Ave., Cranford, NJ. 07016; Winthrope C. Smith, 430 Kimball Ilurn, Westfield, NJ. 07090; and William D. Marsh, 91 Cranford Ave., Cranford, NJ. 07016 Filed Apr. 19, 1971, Ser. No. 135,207 Int. Cl. (308E 27/00, 29/04 US. Cl. 260-878 R 2 Sheets Drawing. 17 Pages Specification CURE CURVES UNCOAGENTED LDPE VS LDPE COAGENTED WITH TAC l I l l l MONSANTO RHEOGRAFH TEMPERATURE 400F OSCILLATION i0 CPM ARC 3 rescue (men Pounce! a a b i s 4 i MINUTES AT coo'F Peroxide cured polyethylene homoand copolymers having improved physical properties, i.e. greatly reduced void formation and increased cure rate and state, are prepared by incorporation of minor amounts of EPDMs and/or coagents such as triallyl cyanurate, trimethylol propane trimethacrylate, ethylene dimethacrylate, mphenylene bis maleimide, etc. These cured polymers are useful as electrical insulators, e.g. for high voltage wire and cable.

Filed April 19, 1971 TORQUE (INCH POUNDS) J. J. MURPHY, JR ETAL POLYETHYLENE 2 Sheets-Sheet 1 FIGURE I IMPROVEMENT IN LDPE CURE WITH TAC l l I MONSANTO RHEOGRAPH A LAB COMPOUND MINUTES AT 400F John J. Murphy, Jr. Win/hrope C. .Sm/fh INVENTORS Will/am D. Mars/7 BY 7AM 4A ATTORNEY July 25, 1972 J. J. MURPHY, JR., L

POLYETHYLENE Filed April 19, 1971 2 Sheets-Sheet 2 FIGURE 2 CURE CURVES UNCOAGENTED LDPE VS LDPE COAGENTED WITH TAC I I I I I MONSANTO RHEOGRAPH TEMPERATURE 400F OSCILLATION IO CPM ARC 3 TORQUE (INCH POUNDS) MINUTES AT 400 F John J. Murphy, I/r. W/nf/Irope C. Smith INVENTORS William 0. Mars/1 BY ATTORNEY

UST900019I4 1971-04-19 1971-04-19 Iinutes at Pending UST900019I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13520771 true 1971-04-19 1971-04-19

Publications (1)

Publication Number Publication Date
UST900019I4 true UST900019I4 (en) 1972-07-25

Family

ID=22467024

Family Applications (1)

Application Number Title Priority Date Filing Date
UST900019I4 Pending UST900019I4 (en) 1971-04-19 1971-04-19 Iinutes at

Country Status (1)

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US (1) UST900019I4 (en)

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