GB586466A - An improved manufacture of electrical insulating materials - Google Patents

An improved manufacture of electrical insulating materials

Info

Publication number
GB586466A
GB586466A GB2020144A GB2020144A GB586466A GB 586466 A GB586466 A GB 586466A GB 2020144 A GB2020144 A GB 2020144A GB 2020144 A GB2020144 A GB 2020144A GB 586466 A GB586466 A GB 586466A
Authority
GB
United Kingdom
Prior art keywords
per cent
isobutylene
styrene
copolymers
electrical insulating
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
Application number
GB2020144A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Standard Oil Development Co
Original Assignee
Standard Oil Development Co
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 Standard Oil Development Co filed Critical Standard Oil Development Co
Priority to GB2020144A priority Critical patent/GB586466A/en
Publication of GB586466A publication Critical patent/GB586466A/en
Expired legal-status Critical Current

Links

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
    • H01B3/18—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
    • H01B3/442—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 from aromatic vinyl compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • 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
    • H01B3/441—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 from alkenes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene

Abstract

Electrical insulating material is produced by a modification of the process of the parent Specification in which a mixture is compounded of 10-70 per cent by weight of a copolymer of isobutylene and styrene, 1-50 per cent of polyisobutylene and 1-50 per cent of polystyrene. Preferably, the copolymer comprises from 10-90 per cent of isobutylene and from 90-10 per cent of styrene. Fillers may be incorporated in the composition; specified are talc, whiting, barytes, lithopone, zinc oxide, lead sulphate and chromate, carbon black, wood flour and cotton linters. Rubber or synthetic rubber, e.g. polybutadiene, styreneacrylonitrile copolymers, isobutylene-diolefine copolymers, polychloroprenes, polysulphide resins and factice, may also be incorporated in the composition, if desired together with a vulcanizing agent and the mixture vulcanized. Composite articles having different properties, e.g. elasticity, in different portions of the same structure may be obtained by using compositions with differing proportions of the three polymeric materials and by the use of copolymers having differing proportions of isobutylene and styrene.
GB2020144A 1944-10-18 1944-10-18 An improved manufacture of electrical insulating materials Expired GB586466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2020144A GB586466A (en) 1944-10-18 1944-10-18 An improved manufacture of electrical insulating materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2020144A GB586466A (en) 1944-10-18 1944-10-18 An improved manufacture of electrical insulating materials

Publications (1)

Publication Number Publication Date
GB586466A true GB586466A (en) 1947-03-19

Family

ID=10142097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2020144A Expired GB586466A (en) 1944-10-18 1944-10-18 An improved manufacture of electrical insulating materials

Country Status (1)

Country Link
GB (1) GB586466A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618624A (en) * 1949-02-15 1952-11-18 Standard Oil Dev Co Composition of styrene and isobutylene polymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2618624A (en) * 1949-02-15 1952-11-18 Standard Oil Dev Co Composition of styrene and isobutylene polymers

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