JPS5662123A - Manufacture of improved polyamide film - Google Patents

Manufacture of improved polyamide film

Info

Publication number
JPS5662123A
JPS5662123A JP13957979A JP13957979A JPS5662123A JP S5662123 A JPS5662123 A JP S5662123A JP 13957979 A JP13957979 A JP 13957979A JP 13957979 A JP13957979 A JP 13957979A JP S5662123 A JPS5662123 A JP S5662123A
Authority
JP
Japan
Prior art keywords
film
polyamide resin
weight distribution
melting
polyamide
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
JP13957979A
Other languages
Japanese (ja)
Other versions
JPS633896B2 (en
Inventor
Takuji Okada
Minoru Kishida
Takuji Nanba
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP13957979A priority Critical patent/JPS5662123A/en
Publication of JPS5662123A publication Critical patent/JPS5662123A/en
Publication of JPS633896B2 publication Critical patent/JPS633896B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B29C47/92—

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Polyamides (AREA)

Abstract

PURPOSE:To obtain a polyamide film which constitutes a composite film excellent in the transparancy, slip property and moedability, by melting a specific polyamide resin having a wide molecular weight distribution at a specified temperature to form a film. CONSTITUTION:The desired film is made of a polyamide resin the relative viscosity of which when dissolved in 1.98% sulfuric acid with a polymer concentration of 1g/dl is at leart 3.10 and which has so wide molecular weight distribution that the standard deviation of the relative viscosity and weight fraction is at least 0.90 with respect to samples consisting of 13 fractions obtained by a simple sequential fractional precipitation in a system consisting of an 88% aqueous phenol solution as soluent and water as precipitant. The film is obtained by melting the polyamide resin at a temperature higher than its melting point by 15 deg.C or more. The polyamide resin having a wide molcular weight distribution can be obtained by mixing polyamide resins, the difference in the relative viscosities of which is at least 0.3.
JP13957979A 1979-10-29 1979-10-29 Manufacture of improved polyamide film Granted JPS5662123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13957979A JPS5662123A (en) 1979-10-29 1979-10-29 Manufacture of improved polyamide film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13957979A JPS5662123A (en) 1979-10-29 1979-10-29 Manufacture of improved polyamide film

Publications (2)

Publication Number Publication Date
JPS5662123A true JPS5662123A (en) 1981-05-27
JPS633896B2 JPS633896B2 (en) 1988-01-26

Family

ID=15248539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13957979A Granted JPS5662123A (en) 1979-10-29 1979-10-29 Manufacture of improved polyamide film

Country Status (1)

Country Link
JP (1) JPS5662123A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095772A1 (en) * 2015-12-01 2017-06-08 Ascend Performance Materials Operations Llc High molecular weight polyamides and copolyamides with uniform rv and low gel content

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532664A (en) * 1976-06-23 1978-01-11 Silver Seiko Knitting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS532664A (en) * 1976-06-23 1978-01-11 Silver Seiko Knitting machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017095772A1 (en) * 2015-12-01 2017-06-08 Ascend Performance Materials Operations Llc High molecular weight polyamides and copolyamides with uniform rv and low gel content
CN108602227A (en) * 2015-12-01 2018-09-28 奥升德功能材料运营有限责任公司 Superpolyamide with uniform RV and low-gel content and copolyamide
CN108602227B (en) * 2015-12-01 2021-07-30 奥升德功能材料运营有限责任公司 High molecular weight polyamides and copolyamides having uniform RV and low gel content and process for their production
CN113321801A (en) * 2015-12-01 2021-08-31 奥升德功能材料运营有限责任公司 High molecular weight polyamides and copolyamides having uniform RV and low gel content and process for their production
CN113321801B (en) * 2015-12-01 2024-02-27 奥升德功能材料运营有限责任公司 High molecular weight polyamides and copolyamides having uniform RV and low gel content and method for making same

Also Published As

Publication number Publication date
JPS633896B2 (en) 1988-01-26

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