JPS6411142A - Production of foamed polytetrafluoroethylene - Google Patents

Production of foamed polytetrafluoroethylene

Info

Publication number
JPS6411142A
JPS6411142A JP16598987A JP16598987A JPS6411142A JP S6411142 A JPS6411142 A JP S6411142A JP 16598987 A JP16598987 A JP 16598987A JP 16598987 A JP16598987 A JP 16598987A JP S6411142 A JPS6411142 A JP S6411142A
Authority
JP
Japan
Prior art keywords
component
liquid
powder
liquid lubricant
wetting 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.)
Pending
Application number
JP16598987A
Other languages
Japanese (ja)
Inventor
Shohei Tamura
Sadamitsu Sasaki
Keiko Mochizuki
Takashi Ichinose
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.)
Nitto Denko Corp
Original Assignee
Nitto Denko 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 Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to JP16598987A priority Critical patent/JPS6411142A/en
Publication of JPS6411142A publication Critical patent/JPS6411142A/en
Pending 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
    • 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)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To obtain the titled formed article composed of a single foamed layer, by transferring polytetrafluoroethylene powder dispersed in a non-wetting liquid into a liquid lubricant, removing the non-wetting liquid and forming and heating the remaining mixture. CONSTITUTION:(A) 100pts.wt. of polytetrafluroethylene powder is dispersed in (B) 1,000-10,000pts.wt. of a non-wetting liquid (e.g. methanol or ethanol) and stirred with a mixer, etc., to attain particle diameter of <=10mum, preferably 0.04-0.2mum. The dispersion is added with (C) 400-600pts.wt. of a liquid lubricant (preferably polychlorotrifluoroethylene) to transfer the powder to the liquid lubricant and the most part of the component B is removed. The obtained mixture composed of the component A, the component C and a small amount of the component B is formed and the formed article is heated at a temperature above the boiling points of the components B and C to remove the components B and C and obtain the objective foamed article.
JP16598987A 1987-07-02 1987-07-02 Production of foamed polytetrafluoroethylene Pending JPS6411142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16598987A JPS6411142A (en) 1987-07-02 1987-07-02 Production of foamed polytetrafluoroethylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16598987A JPS6411142A (en) 1987-07-02 1987-07-02 Production of foamed polytetrafluoroethylene

Publications (1)

Publication Number Publication Date
JPS6411142A true JPS6411142A (en) 1989-01-13

Family

ID=15822799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16598987A Pending JPS6411142A (en) 1987-07-02 1987-07-02 Production of foamed polytetrafluoroethylene

Country Status (1)

Country Link
JP (1) JPS6411142A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005336459A (en) * 2004-04-30 2005-12-08 Kurabe Ind Co Ltd Ptfe paste, ptfe porous material, composite material using ptfe porous material, and method for producing ptfe porous material
WO2008035682A1 (en) * 2006-09-22 2008-03-27 Kurabe Industrial Co., Ltd. Ptfe porous body, ptfe mixture, method for producing ptfe porous body, and electric wire/cable using ptfe porous body
JP2019189816A (en) * 2018-04-27 2019-10-31 ニチアス株式会社 Porous body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005336459A (en) * 2004-04-30 2005-12-08 Kurabe Ind Co Ltd Ptfe paste, ptfe porous material, composite material using ptfe porous material, and method for producing ptfe porous material
WO2008035682A1 (en) * 2006-09-22 2008-03-27 Kurabe Industrial Co., Ltd. Ptfe porous body, ptfe mixture, method for producing ptfe porous body, and electric wire/cable using ptfe porous body
US8207447B2 (en) 2006-09-22 2012-06-26 Kurabe Industrial Co., Ltd. PTFE porous body, PTFE mixture, method for producing PTFE porous body, and electric wire/cable using PTFE porous body
JP2019189816A (en) * 2018-04-27 2019-10-31 ニチアス株式会社 Porous body

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