GB816535A - Improvements in or relating to silicone-modified polyester resins - Google Patents

Improvements in or relating to silicone-modified polyester resins

Info

Publication number
GB816535A
GB816535A GB17339/57A GB1733957A GB816535A GB 816535 A GB816535 A GB 816535A GB 17339/57 A GB17339/57 A GB 17339/57A GB 1733957 A GB1733957 A GB 1733957A GB 816535 A GB816535 A GB 816535A
Authority
GB
United Kingdom
Prior art keywords
radicals
polyester
acid
siloxane
reacting
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
GB17339/57A
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.)
Westinghouse Electric International Co
Original Assignee
Westinghouse Electric International 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 Westinghouse Electric International Co filed Critical Westinghouse Electric International Co
Publication of GB816535A publication Critical patent/GB816535A/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
    • H01B3/46—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 silicones
    • 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
    • H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/04—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances mica
    • 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
    • H01B3/42—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 polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • H01B3/425—Non-saturated polyesters derived from polycarboxylic acids and polyhydroxy compounds, in which at least one of the two components contains aliphatic unsaturation
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

A polymerizable silicon-modified polyester resin is made by reacting (A) from 5 to 65 per cent by weight of an organopolysiloxane having at least 2 hydrolysable hydrocarboxy radicals or 2 chlorine atoms per molecule, at least one of the radicals or chlorine atoms being bonded to each terminal silicon atom of the siloxane and the remaining silicon bonded radicals being hydrocarbon or substituted hydrocarbon radicals, with (B) from 95 to 35 per cent by weight of an unsaturated polyester free from oil modification and obtained by reacting (a) at least one ethylenically unsaturated dicarboxylic acid or anhydride; (b) at least one saturated acid or anhydride selected from phthalic, isophthalic and terephthalic acids and anhydrides; and (c) at least one saturated linear aliphatic dihydric alcohol having from 2 to 6 C atoms per molecule, the molar ratio of the saturated to unsaturated acidic materials being from 6:1 to 1:6 and the alcohol being used in amount of at least 10 per cent by weight in excess over the stoichiometric amount required to (1) esterify all the carboxyl radicals supplied by the acidic materials, and (2) react with all the hydrolysable radicals of the siloxane. The alkoxysiloxanes specified contain Si-bonded alkyl, aryl, alkaryl, aralkyl, cycloaliphatic or alkenyl radicals which may contain, e.g., halogeno or amino substituents. The polyester reactants specified are (a) maleic, fumaric, itaconic, citraconic, mesaconic and aconitic acids and anhydrides, and (c) ethylene, diethylene, 1:2- and 1:3-propylene and dipropylene glycols, 1:2-, 1:3- and 1:4-butanediols and 1:5- and 1:6-pentane diols. The polyester, which is made in known manner, is reacted with the siloxane at 130 DEG to 200 DEG C., the by-product being removed by sparging, e.g. with CO2 or N2 or by azeotropic distillation. In examples the modified polyesters were made in the above manner by reacting (1) a polyester obtained from ethylene glycol, isophthalic acid and maleic anhydride with methoxy terminated trimethoxytriphenyldimethyltrisiloxane; (2) a polyester obtained from ethylene glycol, terephthalic acid and fumaric with methoxy terminated dimethoxytrimethyltriphenyltrisiloxane; and (3) a polyester obtained from propylene glycol, isophthalic acid, terephthalic acid and maleic anhydride with chlorine terminated dichlorotriethyltriphenyltrisiloxane. Uses.-For bonding mica flakes to backing members, e.g. of glass cloth, asbestos cloth, paper or polyethylene-glycol-terephthalate film.
GB17339/57A 1956-06-08 1957-05-31 Improvements in or relating to silicone-modified polyester resins Expired GB816535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US816535XA 1956-06-08 1956-06-08

Publications (1)

Publication Number Publication Date
GB816535A true GB816535A (en) 1959-07-15

Family

ID=22165525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17339/57A Expired GB816535A (en) 1956-06-08 1957-05-31 Improvements in or relating to silicone-modified polyester resins

Country Status (1)

Country Link
GB (1) GB816535A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122579A (en) * 1960-10-17 1964-02-25 Dow Corning Mixed trisiloxanes
GB2156731A (en) * 1984-03-16 1985-10-16 Micanite & Insulators Co Ltd The manufacture of electrical insulating material
GB2170814A (en) * 1985-02-01 1986-08-13 Daicel Chem Polyester-polysiloxane copolymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122579A (en) * 1960-10-17 1964-02-25 Dow Corning Mixed trisiloxanes
GB2156731A (en) * 1984-03-16 1985-10-16 Micanite & Insulators Co Ltd The manufacture of electrical insulating material
GB2170814A (en) * 1985-02-01 1986-08-13 Daicel Chem Polyester-polysiloxane copolymers

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