GB1204519A - Electrical grade laminates - Google Patents

Electrical grade laminates

Info

Publication number
GB1204519A
GB1204519A GB4249367A GB4249367A GB1204519A GB 1204519 A GB1204519 A GB 1204519A GB 4249367 A GB4249367 A GB 4249367A GB 4249367 A GB4249367 A GB 4249367A GB 1204519 A GB1204519 A GB 1204519A
Authority
GB
United Kingdom
Prior art keywords
resin
sheets
laminate
toluene
aldehyde
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
GB4249367A
Inventor
Kerry David Jeffreys
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Priority to GB4249367A priority Critical patent/GB1204519A/en
Priority to DE1794043A priority patent/DE1794043B2/en
Priority to CH1313968A priority patent/CH491471A/en
Priority to FR1581378D priority patent/FR1581378A/fr
Priority to DE19691940220 priority patent/DE1940220A1/en
Publication of GB1204519A publication Critical patent/GB1204519A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
    • C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
    • C08G61/02—Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • 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
    • H01B3/36—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 condensation products of phenols with aldehydes or ketones
    • 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
    • H01B3/485—Other fibrous materials fabric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

1,204,519. Electrical grade laminates. BP CHEMICALS (U.K.) Ltd. 21 Aug., 1968 [19 Sept., 1967], No. 42493/67. Headings B5L and B5N. Electrical grade laminates are made by condensing together, at elevated temperatures, 10 molecular proportions of phenol, 0À5-5À0 of styrene, α-methyl styrene or vinyl toluene and 5-20 of an aldehyde, impregnating or coating sheets or plies such as kraft or asbestos paper, cotton or glass fabric or wood, with the resin, allowing the volatile to volatilize, and applying heat and pressure to form a laminate. The resin may be made by first condensing phenol and the aromatic vinyl compound in the presence of a Lewis acid catalyst, e.g. H 2 SO 4 , BF 3 , AlCl 3 or toluene sulphonic acid and then reacting the condensation product with the aldehyde, suitably formaldehyde, acetaldehyde or furfural, in the presence of NH 3 or an amine, preferably at 50-120‹ C. Fillers, plasticizers, stabilizers and flame retardants may be incorporated in the resin. The resin may be dissolved in an organic solvent, such as ethanol, toluene, methyl ethyl ketone or industrial methylated spirit before impregnating the sheets. The impregnated sheets may be heated, suitably at 70-170‹ C. before assembly of the laminate. The laminate may be in the form of flat sheets or round or rectangular wound tubes and may be clad with copper for use in electrical equipment.
GB4249367A 1967-09-19 1967-09-19 Electrical grade laminates Expired GB1204519A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4249367A GB1204519A (en) 1967-09-19 1967-09-19 Electrical grade laminates
DE1794043A DE1794043B2 (en) 1967-09-19 1968-08-30 Process for the production of laminates for electrical purposes
CH1313968A CH491471A (en) 1967-09-19 1968-09-02 Process for preparing quality laminates for electrical equipment
FR1581378D FR1581378A (en) 1967-09-19 1968-09-18
DE19691940220 DE1940220A1 (en) 1967-09-19 1969-08-07 Resins suitable for preparing layered or

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4249367A GB1204519A (en) 1967-09-19 1967-09-19 Electrical grade laminates

Publications (1)

Publication Number Publication Date
GB1204519A true GB1204519A (en) 1970-09-09

Family

ID=10424680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4249367A Expired GB1204519A (en) 1967-09-19 1967-09-19 Electrical grade laminates

Country Status (3)

Country Link
CH (1) CH491471A (en)
FR (1) FR1581378A (en)
GB (1) GB1204519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419741A1 (en) * 1989-09-28 1991-04-03 Indspec Chemical Corporation Rubber compounding resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0419741A1 (en) * 1989-09-28 1991-04-03 Indspec Chemical Corporation Rubber compounding resin

Also Published As

Publication number Publication date
CH491471A (en) 1970-05-31
FR1581378A (en) 1969-09-12

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SPA Amended specification published
PE20 Patent expired after termination of 20 years