JPS6436416A - Rotary molding method for pfa resin - Google Patents

Rotary molding method for pfa resin

Info

Publication number
JPS6436416A
JPS6436416A JP19270987A JP19270987A JPS6436416A JP S6436416 A JPS6436416 A JP S6436416A JP 19270987 A JP19270987 A JP 19270987A JP 19270987 A JP19270987 A JP 19270987A JP S6436416 A JPS6436416 A JP S6436416A
Authority
JP
Japan
Prior art keywords
resin
solidified
bubbles
furnace
temperature
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.)
Granted
Application number
JP19270987A
Other languages
Japanese (ja)
Other versions
JPH0464488B2 (en
Inventor
Kenji Maki
Suminori Owaki
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.)
FUNABASHI KASEI KK
Original Assignee
FUNABASHI KASEI KK
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 FUNABASHI KASEI KK filed Critical FUNABASHI KASEI KK
Priority to JP19270987A priority Critical patent/JPS6436416A/en
Publication of JPS6436416A publication Critical patent/JPS6436416A/en
Publication of JPH0464488B2 publication Critical patent/JPH0464488B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/12—Esters of monohydric alcohols or phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

PURPOSE:To manufacture a molded product not containing a bubble, by performing one time or more operations where after molten PFA resin has been layered on the inside of a mold, the resin is solidified by lowering a temperature of the resin and the solidified resin is melted again before it is released. CONSTITUTION:Powdered ethylene tetrafluoride, perfluoro alkoxy ethylene copolymer resin melted while acting gravity F upon resin by turning a mold wall 1 in a furnace. Gas within molten resin 2a turns fine bubbles 3 and covers an inner wall of a mold 1. The layered resin 2a is solidified by lowering a temperature of the furnace. As the bubbles 3 are apt to pass through the inside of a solidified resin 2b, they are released outside of the resin by moving to the inside of the solidified resin 2b and a part of them remains within the solidified resin 2b. After the solidified resin 2b has been remelted by raising a temperature of a furnace again, the same is solidified again. Residual bubbles which have been left behind are released and a molded product whose inside is free from the bubbles is obtained.
JP19270987A 1987-08-03 1987-08-03 Rotary molding method for pfa resin Granted JPS6436416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19270987A JPS6436416A (en) 1987-08-03 1987-08-03 Rotary molding method for pfa resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19270987A JPS6436416A (en) 1987-08-03 1987-08-03 Rotary molding method for pfa resin

Publications (2)

Publication Number Publication Date
JPS6436416A true JPS6436416A (en) 1989-02-07
JPH0464488B2 JPH0464488B2 (en) 1992-10-15

Family

ID=16295751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19270987A Granted JPS6436416A (en) 1987-08-03 1987-08-03 Rotary molding method for pfa resin

Country Status (1)

Country Link
JP (1) JPS6436416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020084564A1 (en) * 2018-10-25 2020-04-30 Sabic Global Technologies B.V. Method of molding a thermoplastic article and molded articles made by the method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242608A (en) * 1987-03-31 1988-10-07 Nippon Valqua Ind Ltd Rotational molding of fluoroplastic

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63242608A (en) * 1987-03-31 1988-10-07 Nippon Valqua Ind Ltd Rotational molding of fluoroplastic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020084564A1 (en) * 2018-10-25 2020-04-30 Sabic Global Technologies B.V. Method of molding a thermoplastic article and molded articles made by the method

Also Published As

Publication number Publication date
JPH0464488B2 (en) 1992-10-15

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees