GB1286686A - Polytetrafluoroethylene dispersions for making electrical resistance materials and process for their manufacture - Google Patents

Polytetrafluoroethylene dispersions for making electrical resistance materials and process for their manufacture

Info

Publication number
GB1286686A
GB1286686A GB6128069A GB6128069A GB1286686A GB 1286686 A GB1286686 A GB 1286686A GB 6128069 A GB6128069 A GB 6128069A GB 6128069 A GB6128069 A GB 6128069A GB 1286686 A GB1286686 A GB 1286686A
Authority
GB
United Kingdom
Prior art keywords
water
weight
dispersing agent
alcohols
mixture
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
GB6128069A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1286686A publication Critical patent/GB1286686A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/215—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
    • H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
    • H01C17/06506—Precursor compositions therefor, e.g. pastes, inks, glass frits
    • H01C17/06573—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder
    • H01C17/06586—Precursor compositions therefor, e.g. pastes, inks, glass frits characterised by the permanent binder composed of organic material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use 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 a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Surface Heating Bodies (AREA)

Abstract

1286686 Polytetrafluoroethylene dispersions FARBWERKE HOECHST AG 16 Dec 1969 [16 Dec 1968] 61280/69 Heading C3P [Also in Division D1] A dispersion comprising (a) from 10% to 30% by weight of polytetrafluoroethylene; (b) from 10% to 30% by weight of an electrically conductive pigment; (c) from 2% to 20% by weight of a dispersing agent capable of dispersing component (a) and component (b) in component (d); (d) from 5% to 50% by weight of a di- or polyhydric alcohol or a mixture of di- or polyhydric alcohols; and (e) from 0% to 70% by weight of water may be prepared by mixing (A) an initial polytetrafluoroethyiene dispersion whose liquid phase comprises water or one or more di- or polyhydric alcohols or a mixture of water and such alcohols and a first dispersing agent and (B) a paste of the pigment and water or one or more di- or polyhydric alcohols or a mixture of water and such alcohols and, optionally, a dispersing agent which may be the same as the first dispersing agent or may be different. In the examples the dispersions contain graphite dust, carbon black, ethylene glycol, water, sodium pentachlorophenolate, condensation product of nonyl phenol and ethylene glycol, polytetrafluoroethyiene emulsion, condensation product of nonyl phenol and ethylene oxide, disodium sulphonate of dinaphthyl-methane, sulphate waste liquor powder, hexanetriol and sorbitol.
GB6128069A 1968-12-16 1969-12-16 Polytetrafluoroethylene dispersions for making electrical resistance materials and process for their manufacture Expired GB1286686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681814869 DE1814869C3 (en) 1968-12-16 1968-12-16 Aqueous paste for the production of electrical resistors

Publications (1)

Publication Number Publication Date
GB1286686A true GB1286686A (en) 1972-08-23

Family

ID=5716333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6128069A Expired GB1286686A (en) 1968-12-16 1969-12-16 Polytetrafluoroethylene dispersions for making electrical resistance materials and process for their manufacture

Country Status (15)

Country Link
JP (1) JPS4817663B1 (en)
AT (1) AT295846B (en)
BE (1) BE743221A (en)
CH (1) CH513931A (en)
DE (1) DE1814869C3 (en)
DK (1) DK121474B (en)
ES (1) ES374534A1 (en)
FI (1) FI53055C (en)
FR (1) FR2026272A1 (en)
GB (1) GB1286686A (en)
LU (1) LU60005A1 (en)
NL (1) NL151411B (en)
NO (1) NO126283B (en)
PL (1) PL80356B1 (en)
SE (1) SE345681B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035265A (en) 1969-04-18 1977-07-12 The Research Association Of British, Paint, Colour & Varnish Manufacturers Paint compositions
US5502161A (en) * 1994-12-21 1996-03-26 Ici Americas Inc. Method for the production of free-flowing tetrafluoroethylene polymer molding powders
EP1065739A1 (en) * 1999-06-30 2001-01-03 Nagakazu Furuya Process for producing gas diffusion electrode material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53139901A (en) * 1977-05-13 1978-12-06 Victor Co Of Japan Ltd Channel selection unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035265A (en) 1969-04-18 1977-07-12 The Research Association Of British, Paint, Colour & Varnish Manufacturers Paint compositions
US5502161A (en) * 1994-12-21 1996-03-26 Ici Americas Inc. Method for the production of free-flowing tetrafluoroethylene polymer molding powders
EP1065739A1 (en) * 1999-06-30 2001-01-03 Nagakazu Furuya Process for producing gas diffusion electrode material
US6630081B1 (en) 1999-06-30 2003-10-07 Nagakazu Furuya Process for producing gas diffusion electrode material

Also Published As

Publication number Publication date
CH513931A (en) 1971-10-15
FR2026272A1 (en) 1970-09-18
NL151411B (en) 1976-11-15
DK121474B (en) 1971-10-18
DE1814869C3 (en) 1974-07-18
BE743221A (en) 1970-06-16
JPS4817663B1 (en) 1973-05-31
ES374534A1 (en) 1972-03-01
SE345681B (en) 1972-06-05
FI53055C (en) 1978-01-10
FI53055B (en) 1977-09-30
NO126283B (en) 1973-01-15
DE1814869A1 (en) 1970-10-01
NL6918075A (en) 1970-06-18
PL80356B1 (en) 1975-08-30
DE1814869B2 (en) 1973-12-13
AT295846B (en) 1972-01-25
LU60005A1 (en) 1971-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee