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GB1011369A - Improvements in or relating to impregnating liquids containing a thermo-setting resin - Google Patents

Improvements in or relating to impregnating liquids containing a thermo-setting resin

Info

Publication number
GB1011369A
GB1011369A GB4423261A GB4423261A GB1011369A GB 1011369 A GB1011369 A GB 1011369A GB 4423261 A GB4423261 A GB 4423261A GB 4423261 A GB4423261 A GB 4423261A GB 1011369 A GB1011369 A GB 1011369A
Authority
GB
United Kingdom
Prior art keywords
phenol
product
added
formalin
boric acid
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
GB4423261A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1011369A publication Critical patent/GB1011369A/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
    • C08G8/28—Chemically modified polycondensates
    • 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
    • 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
    • C08G8/24—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20
    • 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
    • H01B3/48—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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H05K1/032—Organic insulating material consisting of one material
    • H05K1/0326—Organic insulating material consisting of one material containing O

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

A method of making an aqueous impregnating liquid poor in electrolyte and containing a thermo-setting reaction product of phenol, a cresol or a mixture of cresols of phenol and one or more cresols comprises reacting the phenol(s) with from 1.5 to 3.0 gram moles of formaldehyde per gram mol of phenol at elevated temperature in an aqueous medium at a pH of 7.0 to 8.0 achieved by the presence of a basically reacting alkaline earth compound or an aliphatic tertiary amine which is not incorporated in the resin molecule, the reaction continuing until a reaction product has been formed in which at least 1.2 gram mol of formaldehyde are bound per mol of hydroxybenzene. Acids which are incorporated in the resin molecule, e.g. boric acid, m-cresotinic acid, phenol-carboxylic acids, aminocarboxylic acids or aminosulphonic acids, are preferably added to the reaction products. The examples describe the preparation of impregnants from:-(I) phenol, formalin, triethylamine and stearylamide, boric acid being added to the product; (II) phenol, paraformaldehyde, formalin, triethylamine and stearylamide, boric acid being added to the product; (III) m- and p-cresol, formalin, calcium hydroxide and cetyl alcohol, m-cresotinic acid being added to the product; and (IV) phenol, formalin, calcium hydroxide and cetyl alcohol, boric acid being added to the product. The resultant solutions are used for impregnating paper sheets which are stacked and laminated under heat and pressure.
GB4423261A 1960-12-14 1961-12-11 Improvements in or relating to impregnating liquids containing a thermo-setting resin Expired GB1011369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL259057 1960-12-14

Publications (1)

Publication Number Publication Date
GB1011369A true GB1011369A (en) 1965-11-24

Family

ID=19752760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4423261A Expired GB1011369A (en) 1960-12-14 1961-12-11 Improvements in or relating to impregnating liquids containing a thermo-setting resin

Country Status (5)

Country Link
CH (1) CH443426A (en)
DE (1) DE1520407B2 (en)
FR (1) FR1316547A (en)
GB (1) GB1011369A (en)
NL (1) NL259057A (en)

Also Published As

Publication number Publication date
DE1520407A1 (en) 1969-08-07
DE1520407B2 (en) 1970-11-26
CH443426A (en) 1967-09-15
FR1316547A (en) 1963-02-01
NL259057A (en)

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