JPS6111773B2 - - Google Patents

Info

Publication number
JPS6111773B2
JPS6111773B2 JP52058744A JP5874477A JPS6111773B2 JP S6111773 B2 JPS6111773 B2 JP S6111773B2 JP 52058744 A JP52058744 A JP 52058744A JP 5874477 A JP5874477 A JP 5874477A JP S6111773 B2 JPS6111773 B2 JP S6111773B2
Authority
JP
Japan
Prior art keywords
film
microporous
birefringence
stretching
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.)
Expired
Application number
JP52058744A
Other languages
English (en)
Japanese (ja)
Other versions
JPS53143671A (en
Inventor
Isoo Saito
Tetsuya Kikuchi
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP5874477A priority Critical patent/JPS53143671A/ja
Publication of JPS53143671A publication Critical patent/JPS53143671A/ja
Publication of JPS6111773B2 publication Critical patent/JPS6111773B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
JP5874477A 1977-05-23 1977-05-23 Microporous polyamide film Granted JPS53143671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5874477A JPS53143671A (en) 1977-05-23 1977-05-23 Microporous polyamide film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5874477A JPS53143671A (en) 1977-05-23 1977-05-23 Microporous polyamide film

Publications (2)

Publication Number Publication Date
JPS53143671A JPS53143671A (en) 1978-12-14
JPS6111773B2 true JPS6111773B2 (enrdf_load_stackoverflow) 1986-04-04

Family

ID=13093032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5874477A Granted JPS53143671A (en) 1977-05-23 1977-05-23 Microporous polyamide film

Country Status (1)

Country Link
JP (1) JPS53143671A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS53143671A (en) 1978-12-14

Similar Documents

Publication Publication Date Title
EP0057328B1 (en) Porous polyethylene film
JP2509030B2 (ja) 超透過性ポリプロピレンのミクロポ―ラスフィルム及びその製造方法
JPS5936575B2 (ja) 微孔性重合体フイルムの製法
US5435955A (en) Process of producing porous polypropylene hollow fiber and film
CA1167211A (en) Process for preparing hollow microporous polypropylene fibers
US4405688A (en) Microporous hollow fiber and process and apparatus for preparing such fiber
US4055696A (en) Porous polypropylene hollow filaments and method making the same
US5013439A (en) Microporous membranes having increased pore densities and process for making the same
US3878284A (en) Processes for making shaped articles such as filaments or films from solutions of polyglycolic acid
US4541981A (en) Method for preparing a uniform polyolefinic microporous hollow fiber
JPH0428803B2 (enrdf_load_stackoverflow)
JPH0219141B2 (enrdf_load_stackoverflow)
JP2628788B2 (ja) 微多孔性膜の製造方法及びその方法で製造される耐溶断性微多孔性膜
CA1315929C (en) Porous hollow-fiber
CN109935759B (zh) 一种低热收缩电池隔膜的制备方法及电池隔膜
US4857255A (en) Poly-p-phenylene-terephthalamide film and process for producing the same
EP0198326B1 (en) Poly-p-phenylene-terephthalamide film and process for producing the same
KR940001854B1 (ko) 증가된 기공밀도를 갖는 미공질막과 그의 제조방법
JPS6111773B2 (enrdf_load_stackoverflow)
JPS6037201B2 (ja) 多孔質ポリプロピレン中空糸の製造方法
JPH11290453A (ja) 微孔質中空繊維血液酸素供給器
CN114733365A (zh) 一种聚烯烃中空纤维膜的制备工艺
JP4048417B2 (ja) ポリベンゾアゾールフィルム
DE1779010B2 (de) Verfahren zur herstellung von mikroporoesen filmen aus hochpolymeren
US3737440A (en) Polyglycolic acid in solutions