KR920004477A - 미다공성 막의 제조방법 및 그 방법으로 제조되는 내용단성 미다공성 막 - Google Patents

미다공성 막의 제조방법 및 그 방법으로 제조되는 내용단성 미다공성 막 Download PDF

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KR920004477A
KR920004477A KR1019910013651A KR910013651A KR920004477A KR 920004477 A KR920004477 A KR 920004477A KR 1019910013651 A KR1019910013651 A KR 1019910013651A KR 910013651 A KR910013651 A KR 910013651A KR 920004477 A KR920004477 A KR 920004477A
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polyolefin
producing
microporous
membrane according
microporous polyolefin
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KR1019910013651A
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KR0178039B1 (ko
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히로시 구라우치
데쓰오 아카자와
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나카히가시 모토오
우베 코산 가부시키가이샤
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • B29C55/065—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed in several stretching steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/73—Processes of stretching

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

내용 없음

Description

미다공성 막의 제조방법 및 그 방법으로 제조되는 내용단성 미다공성 막
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 1 및 2의 왜곡속도와 구멍경의 관계를 나타내는 그래프,
제2도는 미다공막의 점탄성률(E)과 온도의 관계를 나타내는 그래프, 그리고
제3도는 본 발명의 실시예의 미다공막의 질소가스 투과율과 가열온도와의 관계를 나타내는 그래프이다.

Claims (9)

  1. 연신에 의하여 다수의 관통미세공(貫通微細孔)을 갖는 폴리올레핀 미다공성 막을 제조함에 있어서, 연신온도를 일정으로 하면서, 연신의 초기단계로부터 최종단계에 있어 왜곡속도를 변화하여 연신하는 것을 특징으로 하는 미다공성 폴리오레핀 막의 제조방법.
  2. 제1항에 있어서, 미연신 폴리올레핀 필름의 연신은 미연신 폴리올레핀 필름의 어닐링(anneling)을 행한 후에 실시하는, 미다공성 폴리올레핀 막의 제조방법.
  3. 제2항에 있어서, 어닐링은 미연신 폴리올레핀의 융해점 보다 낮은 5－70℃로 실시하는, 미다공성 폴리올레핀 막의 제조방법.
  4. 제1항 또는 제2항 에 있어서, 왜곡량을 초기단계 100℃이고, 왜곡속도는 초기단계 초기 500%/분 이하 및 후기 100%/분 이하 그리고 제2단계 50%/분 이하인 미다공성 폴리올레핀 막의 제조방법.
  5. 제4항에 있어서, 획득한 연신 폴리올레핀은 100%/분으로 더 연신하는 미다공성 폴리올레핀 막의 제조방법.
  6. 제1항 또는 제2항에 있어서, 연신 폴리올레핀은 열처리하는 미다공성 폴리올레핀 막의 제조방법.
  7. 제6항에 있어서, 열처리는 미연신 폴리올레핀의 융해점 보다 낮은 5－60℃의 온도로 실시하는 미다공성 폴리올레핀 막의 제조방법.
  8. 제1항의 제조방법에 의하여 획득하는 미다공성 폴리올레핀 막으로서, 주연부가 고정 구속될 때 융해점 보다 높은 온도에서도 막의 상태를 보지할 수 있는 내용단성(耐熔斷性) 미다공성 폴리올레핀 막.
  9. 제8항에 있어서, 공공율(公公率 : porosity)이 20－75%인 내용단성 미다공성 폴리올레핀 막.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910013651A 1990-08-09 1991-08-07 미다공성 막의 제조방법 및 그 방법으로 제조되는 내용단성 미다공성 막 KR0178039B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2-211396 1990-08-09
JP21139690 1990-08-09
JP2-332024 1990-11-29
JP2332024A JP2628788B2 (ja) 1990-08-09 1990-11-29 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

Publications (2)

Publication Number Publication Date
KR920004477A true KR920004477A (ko) 1992-03-27
KR0178039B1 KR0178039B1 (ko) 1999-05-15

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US (1) US5258156A (ko)
EP (1) EP0470633B1 (ko)
JP (1) JP2628788B2 (ko)
KR (1) KR0178039B1 (ko)
DE (1) DE69119322T2 (ko)

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Publication number Publication date
DE69119322D1 (de) 1996-06-13
US5258156A (en) 1993-11-02
KR0178039B1 (ko) 1999-05-15
EP0470633A3 (en) 1993-02-10
DE69119322T2 (de) 1996-12-05
EP0470633B1 (en) 1996-05-08
JP2628788B2 (ja) 1997-07-09
JPH04176328A (ja) 1992-06-24
EP0470633A2 (en) 1992-02-12

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