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GB1074401A - Improvements in or relating to insulating material - Google Patents

Improvements in or relating to insulating material

Info

Publication number
GB1074401A
GB1074401A GB1657565A GB1657565A GB1074401A GB 1074401 A GB1074401 A GB 1074401A GB 1657565 A GB1657565 A GB 1657565A GB 1657565 A GB1657565 A GB 1657565A GB 1074401 A GB1074401 A GB 1074401A
Authority
GB
United Kingdom
Prior art keywords
peroxide
reaction product
butyl
benzoyl peroxide
bisphenol
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
GB1657565A
Inventor
Roy Edward Oliver
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW 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 TRW Inc filed Critical TRW Inc
Priority to GB1657565A priority Critical patent/GB1074401A/en
Publication of GB1074401A publication Critical patent/GB1074401A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C08L63/10Epoxy resins modified by unsaturated compounds
    • 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
    • C08F20/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10Esters
    • C08F20/20Esters of polyhydric alcohols or polyhydric phenols, e.g. 2-hydroxyethyl (meth)acrylate or glycerol mono-(meth)acrylate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

Non-electrically conductive fibres, e.g. glass fibres, suitable for forming electrical insulation material are bound together with a resinous material including a copolymer obtained by polymerizing the reaction product of 2 molar proportions of methacrylic acid and 1 molar proportion of the diglycidyl ether of bisphenol-A, which is substantially free from unreacted epoxy groups, with an ethylenically unsaturated comonomer in the presence of benzoyl peroxide and one or more peroxy catalysts which promote a polymerization rate, with respect to said reaction product and comonomer, greater than that achieved with benzoyl peroxide. Suitable comonomers include styrene, diallyl phthalate, triallyl cyanurate, unsaturated polyesters, acetyl triallyl citrate, vinyl toluene, divinylbenzene, polymerizable phosphorus compounds (unspecified), and dialkyl maleates and fumarates. Peroxy compounds suitable as catalyst components include t-butyl perbenzoate, t-butyl hydroperoxide, dicumyl peroxide, cyclohexanone peroxide, cyclohexyl hydroperoxide, 2,4-dichlorobenzoyl peroxide, methyl amyl ketone peroxide, lauroyl peroxide, methylcyclohexyl hydroperoxide, di-t-butyl dipermaleate and di-t-butyl diperphthalate. Inert fillers, e.g. calcium carbonate or mica, mould release agents, e.g. zinc, calcium and aluminium stearates, and colouring materials may be included in the resinous binder. In an example, the bisphenol-A derivative reaction product and styrene are copolymerized in bulk in the presence of filler, pigment and mould release agent.ALSO:Non-electrically conductive fibres, e.g. glass fibres, are bound together to form an electrical insulator with a resinous material including a copolymer obtained by polymerising the reaction product of 2 molar proportions of methacrylic acid and 1 molar proportion of the diglycidyl ether of bisphenol-A (the reaction product being substantially free from unreacted epoxy groups) with an ethylenically unsaturated comonomer in the presence of benzoyl peroxide and at least one peroxy catalyst which promotes a polymerisation rate greater than that achieved with benzoyl peroxide. Suitable comonomers include styrene diallyl phthalate, triallyl cyanurate, unsaturated polyesters, acetyl triallyl citrate, vinyl toluene, compounds (unspecified), and dialkyl maleates and fumarates. The resinous material may include an inert filler, e.g. calcium carbonate or mica, a mould release agent, e.g. zinc, calcium or aluminium stearate, and a colouring material.
GB1657565A 1965-04-20 1965-04-20 Improvements in or relating to insulating material Expired GB1074401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1657565A GB1074401A (en) 1965-04-20 1965-04-20 Improvements in or relating to insulating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1657565A GB1074401A (en) 1965-04-20 1965-04-20 Improvements in or relating to insulating material

Publications (1)

Publication Number Publication Date
GB1074401A true GB1074401A (en) 1967-07-05

Family

ID=10079781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1657565A Expired GB1074401A (en) 1965-04-20 1965-04-20 Improvements in or relating to insulating material

Country Status (1)

Country Link
GB (1) GB1074401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018638A1 (en) * 1979-05-01 1980-11-12 Union Carbide Corporation A poly(acrylate) containing composition and process for producing molded articles
EP0063913A3 (en) * 1981-04-21 1984-01-11 Sumitomo Electric Industries Limited Heat-shrinkable tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018638A1 (en) * 1979-05-01 1980-11-12 Union Carbide Corporation A poly(acrylate) containing composition and process for producing molded articles
EP0063913A3 (en) * 1981-04-21 1984-01-11 Sumitomo Electric Industries Limited Heat-shrinkable tubes

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