GB837199A - Improved polytetrafluoroethylene products and method for the production thereof - Google Patents

Improved polytetrafluoroethylene products and method for the production thereof

Info

Publication number
GB837199A
GB837199A GB3813/58A GB381358A GB837199A GB 837199 A GB837199 A GB 837199A GB 3813/58 A GB3813/58 A GB 3813/58A GB 381358 A GB381358 A GB 381358A GB 837199 A GB837199 A GB 837199A
Authority
GB
United Kingdom
Prior art keywords
iron
wetter
polymer
microns
compositions
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
GB3813/58A
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.)
Polymer Corp
Original Assignee
Polymer Corp
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 Polymer Corp filed Critical Polymer Corp
Publication of GB837199A publication Critical patent/GB837199A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/08—Metals

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)
  • Paints Or Removers (AREA)

Abstract

Iron-filled polytetrafluoroethylene compositions are made by slurring in an anhydrous organic liquid wetter particulate polytetrafluoroethylene having an average particle size less than 2 microns, intermixing with the polymer whilst in slurry form iron particles of average size not exceeding 20 microns, and separating the liquid wetter from the intermixed particles under anhydrous conditions and at a temperature below the sintering temperature of the polymer to yield a powdery composition. In this method the quantity of iron particles constitutes from 44 to 90% of the combined volume of polymer and iron. The iron is preferably phosphate coated carbonyl iron. The wetter may be acetone, alcohol, naphtha, aliphatic or aromatic halogenated hydrocarbons, a glycol, an ester or ether, a ketone, a silicon oil, tricresyl phosphate, benzene, toluene, or para-xylene. The compositions are used in the manufacture of magnetic products.
GB3813/58A 1954-06-28 1956-03-20 Improved polytetrafluoroethylene products and method for the production thereof Expired GB837199A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43992554A 1954-06-28 1954-06-28
US49545655A 1955-03-21 1955-03-21

Publications (1)

Publication Number Publication Date
GB837199A true GB837199A (en) 1960-06-09

Family

ID=27032221

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3813/58A Expired GB837199A (en) 1954-06-28 1956-03-20 Improved polytetrafluoroethylene products and method for the production thereof
GB8739/56A Expired GB837198A (en) 1954-06-28 1956-03-20 Improved filled polytetrafluoroethylene products and method for the production thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8739/56A Expired GB837198A (en) 1954-06-28 1956-03-20 Improved filled polytetrafluoroethylene products and method for the production thereof

Country Status (3)

Country Link
CH (2) CH376661A (en)
GB (2) GB837199A (en)
NL (1) NL270228A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7976720B2 (en) * 2006-02-14 2011-07-12 Sumida Corporation Composite magnetic sheet and production method thereof
DE102013216648A1 (en) * 2013-08-22 2015-02-26 Leibniz-Institut Für Polymerforschung Dresden E.V. SILICONE OIL PTFE DISPERSIONS AND METHOD FOR THEIR PREPARATION AND USE

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224966A (en) * 1962-03-07 1965-12-21 Honeywell Inc Low friction material
GB1169704A (en) * 1965-12-14 1969-11-05 Maurice Wooding Pellet Machine Die
SE367773B (en) * 1969-04-23 1974-06-10 Composite Sciences
US4055862A (en) * 1976-01-23 1977-11-01 Zimmer Usa, Inc. Human body implant of graphitic carbon fiber reinforced ultra-high molecular weight polyethylene
GB2311072A (en) * 1996-03-13 1997-09-17 Flexitallic Sealing Materials PTFE sealing material
FR2977523B1 (en) * 2011-07-04 2013-08-16 Mersen France Py Sas PROCESS FOR MANUFACTURING POLYTETRAFLUOROETHYLENE PARTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7976720B2 (en) * 2006-02-14 2011-07-12 Sumida Corporation Composite magnetic sheet and production method thereof
DE102013216648A1 (en) * 2013-08-22 2015-02-26 Leibniz-Institut Für Polymerforschung Dresden E.V. SILICONE OIL PTFE DISPERSIONS AND METHOD FOR THEIR PREPARATION AND USE

Also Published As

Publication number Publication date
CH376661A (en) 1964-04-15
CH431060A (en) 1967-02-28
NL270228A (en)
GB837198A (en) 1960-06-09

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