GB1276908A - Tetrafluoroethylene polymer composition - Google Patents

Tetrafluoroethylene polymer composition

Info

Publication number
GB1276908A
GB1276908A GB5148769A GB5148769A GB1276908A GB 1276908 A GB1276908 A GB 1276908A GB 5148769 A GB5148769 A GB 5148769A GB 5148769 A GB5148769 A GB 5148769A GB 1276908 A GB1276908 A GB 1276908A
Authority
GB
United Kingdom
Prior art keywords
per cent
weight per
mixture
free
organic liquid
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
GB5148769A
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.)
LIQUID NITROGEN PROCESSSING CO
Original Assignee
LIQUID NITROGEN PROCESSSING 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 LIQUID NITROGEN PROCESSSING CO filed Critical LIQUID NITROGEN PROCESSSING CO
Publication of GB1276908A publication Critical patent/GB1276908A/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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/18—Spheres

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)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

1276908 Free-flowing tetrafluoroethylene polymer powders LIQUID NITROGEN PROCESSING CORP 21 Oct 1969 [26 Dec 1968 20 June 1969] 51487/69 Heading C3P A free-flowing pulverulent polymer blend may be prepared by uniformly blending a mixture of 0À01 to 10 weight per cent of fluorinated ethylene/propylene copolymer having a particle size of ¢ to 10 microns (maximum dimension) and from 90 to 99À99 weight per cent of powdered tetrafluoroethylene polymer having a particle size of 10 to 100 microns (maximum dimension), with the aforesaid percentages being based on the total weight of the polymer and copolymer, wetting and agglomerating the mixture with from 10 to 40 weight per cent (based on the total wet mixture) of an organic liquid having a surface tension of less than 40 dynes per centimetre (measured at 20‹ C.), agitating the wet mixture, and drying the wet mixture to remove organic liquid so that the resultant product composition has a free liquid content of less than 0À03 weight per cent. In the examples blends are prepared containing polytetrafluoroethylene, fluorinated ethylene/propylene copolymer, milled fibre-glass, graphite, and bronze using ethanol as the organic liquid and drying while tumbling.
GB5148769A 1968-12-26 1969-10-21 Tetrafluoroethylene polymer composition Expired GB1276908A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78721868A 1968-12-26 1968-12-26
US83526369A 1969-06-20 1969-06-20

Publications (1)

Publication Number Publication Date
GB1276908A true GB1276908A (en) 1972-06-07

Family

ID=27120628

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5148769A Expired GB1276908A (en) 1968-12-26 1969-10-21 Tetrafluoroethylene polymer composition

Country Status (4)

Country Link
JP (1) JPS4820219B1 (en)
DE (1) DE1950733B2 (en)
FR (1) FR2027113A1 (en)
GB (1) GB1276908A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131817A (en) * 1982-12-03 1984-06-27 Daido Metal Co Wear-resistant bearing materials
CN101738131B (en) * 2008-11-21 2011-12-14 李士贤 Heat exchanger made of composite materials

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341468Y2 (en) * 1980-04-25 1988-10-31
JPS60258297A (en) * 1984-06-05 1985-12-20 Daido Metal Kogyo Kk Sliding material having excellent abrasion resistance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131817A (en) * 1982-12-03 1984-06-27 Daido Metal Co Wear-resistant bearing materials
GB2139235A (en) * 1982-12-03 1984-11-07 Daido Metal Co Wear resistant materials
GB2139236A (en) * 1982-12-03 1984-11-07 Daido Metal Co Wear resistant materials
CN101738131B (en) * 2008-11-21 2011-12-14 李士贤 Heat exchanger made of composite materials

Also Published As

Publication number Publication date
FR2027113A1 (en) 1970-09-25
DE1950733A1 (en) 1970-07-02
DE1950733B2 (en) 1974-10-24
JPS4820219B1 (en) 1973-06-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees