JPS6471710A - Manufacture of magnetic field hysteretic heat liquid-crystalline polymer - Google Patents

Manufacture of magnetic field hysteretic heat liquid-crystalline polymer

Info

Publication number
JPS6471710A
JPS6471710A JP22835687A JP22835687A JPS6471710A JP S6471710 A JPS6471710 A JP S6471710A JP 22835687 A JP22835687 A JP 22835687A JP 22835687 A JP22835687 A JP 22835687A JP S6471710 A JPS6471710 A JP S6471710A
Authority
JP
Japan
Prior art keywords
polymer
temperature
magnetic field
heat liquid
crystalline polymer
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
JP22835687A
Other languages
Japanese (ja)
Other versions
JPH0662778B2 (en
Inventor
Fumihiko Oda
Isamu Shiga
Masahiro Hayashi
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP62228356A priority Critical patent/JPH0662778B2/en
Publication of JPS6471710A publication Critical patent/JPS6471710A/en
Publication of JPH0662778B2 publication Critical patent/JPH0662778B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE:To obtain a highly orientated magnetic field hysteretic heat liquid- crystalline polymer, by a method wherein a polymer is heated to a temperature within a range, higher than a temperature whereat the heat liquid-crystalline polymer becomes a high-dimensional structure and lower than a temperature whereat the polymer is decomposed, thereafter, magnetic field is impressed on the polymer at a temperature lower than said temperature range. CONSTITUTION:Many polymers which form liquid crystal when they are heated and molten, such as various polyester, polyazomethine or the like for exampie, are employed as a heat liquid-crystalline polymer. The heat liquid-crystalline polymer is heated and magnetic field is impressed thereon under a condition that the polymer forms liquid crystal to manufacture the title polymer. In this case, the heat liquid-crystalline polymer is heated to a temperature within a range, higher than a temperature whereat said polymer becomes high- dimensional structure and lower than a temperature whereat said polymer is decomposed. When the heat liquid-crystalline polymer is heated to a temperature within a range, described above, and is cooled thereafter, a sufficient magnetic field orientation may be achieved.
JP62228356A 1987-09-14 1987-09-14 Magnetic field history Thermophilic liquid crystalline polymer manufacturing method Expired - Lifetime JPH0662778B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62228356A JPH0662778B2 (en) 1987-09-14 1987-09-14 Magnetic field history Thermophilic liquid crystalline polymer manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62228356A JPH0662778B2 (en) 1987-09-14 1987-09-14 Magnetic field history Thermophilic liquid crystalline polymer manufacturing method

Publications (2)

Publication Number Publication Date
JPS6471710A true JPS6471710A (en) 1989-03-16
JPH0662778B2 JPH0662778B2 (en) 1994-08-17

Family

ID=16875177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62228356A Expired - Lifetime JPH0662778B2 (en) 1987-09-14 1987-09-14 Magnetic field history Thermophilic liquid crystalline polymer manufacturing method

Country Status (1)

Country Link
JP (1) JPH0662778B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001253962A (en) * 2000-03-10 2001-09-18 Japan Society For The Promotion Of Science Method of producing oriented crystalline polymer material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158704A (en) * 1984-08-10 1986-03-26 バイエル・アクチエンゲゼルシヤフト Thermoplastic processing under effect of electric field and/or magnetic field of thermotropic liquid crystal polymer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158704A (en) * 1984-08-10 1986-03-26 バイエル・アクチエンゲゼルシヤフト Thermoplastic processing under effect of electric field and/or magnetic field of thermotropic liquid crystal polymer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001253962A (en) * 2000-03-10 2001-09-18 Japan Society For The Promotion Of Science Method of producing oriented crystalline polymer material

Also Published As

Publication number Publication date
JPH0662778B2 (en) 1994-08-17

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