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KR970070066A - 고강도 폴리프로필렌 다공필름 및 그 제조방법 - Google Patents

고강도 폴리프로필렌 다공필름 및 그 제조방법 Download PDF

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KR970070066A
KR970070066A KR1019970014378A KR19970014378A KR970070066A KR 970070066 A KR970070066 A KR 970070066A KR 1019970014378 A KR1019970014378 A KR 1019970014378A KR 19970014378 A KR19970014378 A KR 19970014378A KR 970070066 A KR970070066 A KR 970070066A
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polypropylene
film
porous film
liquid
porous
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KR1019970014378A
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KR100456386B1 (ko
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아끼나오 하시모토
까즈오 야기
히토시 만토꾸
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고다 시게노리
미쓰이세키유 가가쿠고교 가부시키가이샤
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    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
    • 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
    • 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
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • 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
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro

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

Abstract

폴리프로필렌수지를 주성분으로 하여, 본 발명은 가소제나 용제를 실질적으로 사용하지 않고 얻어진 폴리프로필렌 필름으로부터 제조한 기계적특성이 우수하고, 식품용도나 포장재 등의 용도에 적합한 다공성 필름 및 그 제조방법을 제공함으로 과제로 한다.
해결수단은 가소제나 용제를 실질적으로 사용하지 않고 얻어진 폴리프로필렌의 불투기성 필름을 연신 및 및/또는 열처리에 의하여 다공화한 (1) 기계방향(MD) 및 기계교차방향(TD)의 인장강도가 35MPa 이상; (2) 공공률(空孔率)이 80% 이하; (3) 투습도가 20g/㎡day 이상;의 물성을 갖는 것을 특징으로 하는 폴리프로필렌 다공필름으로 이 필름은 예를 들면 결정화도가 40%이상인 폴리프로필렌 2축 연신필름 또는 인플레이션필름을 구속하여서 결정화도를 높이기 위한 열처리 및/또는 연신처리하여 다공화함으로서 었는다.

Description

고강도 폴리프로필렌 필름 다공필름 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (11)

  1. 폴리프로필렌수지를 주성분으로 하여, (1) 기계방향(MD) 및 기계교차방향(TD)의 인장강도가 35MPa 이상; (2) 공공률(空孔率)이 80% 이하; (3) 투습도가 20g/㎡day 이상;의 물성을 갖는 것을 특징으로 하는 폴리프로필렌 다공필름.
  2. 제1항에 있어서, 폴리프로필렌수지의 극한점도(η)가 4미만인 폴리프로필렌 다공필름.
  3. 제1항 또는 제2항에 있어서, 가소제나 용제를 실질적으로 사용하지 않고 얻어진 불투기성의 폴리프로필렌 2축연신필름 또는 인플레이션필름을 연신 및/또는 열처리함으로써 다공화된 폴리프로필렌 다공필름.
  4. 폴리프로필렌 2축연신필름 또는 인플레이션필름을 적어도 1축으로 연신하여 다공화시키는 것을 특징으로 하는 폴리프로필렌 다공필름의 제조방법.
  5. 폴리프로필렌 2축연신필름 또는 인플레이션필름을 결정화도의 증가를 가져오는 열처리를 하여 다공화시키는 것을 특징으로 하는 폴리프로필렌 다공필름의 제조방법.
  6. 폴리프로필렌 2축연신필름 또는 인플레이션필름을 결정화도의 증가를 가져오는 열처리를 하고, 그 후에 적어도 1축으로 연신하여 다공화시키는 것을 특징으로 하는 폴리프로필렌 다공필름의 제조방법.
  7. 제4항~제6항중의 어느 1항에 있어서, 상기 폴리프로필렌의 원료수지가 극한점도(η) 4미만인 폴리프로필렌 다공필름의 제조방법.
  8. 제5항~제7항중의 어느 1항에 있어서, 상기 결정화도의 증가를 가져오는 열처리를 폴리프로필렌 2축연신필름 또는 인플레이션필름을 실질적으로 용해하지 않는 제1의 액체의 존재하에서 행하는 폴리프로필렌 다공필름의 제조방법.
  9. 제4항~제7항중의 어느 1항에 있어서, 상기 적어도 1축향의 연신을 폴리프로필렌필름을 실질적으로 용해하지 않는 제1의 액체의 존재하에서 행하는 폴리프로필렌 다공필름의 제조방법.
  10. 제8항 또는 제9항에 있어서, 상기 제1의 액체가 다공화을 위한 열처리 또는 연신시의 처리온도 이상의 비점을 갖는 탄화수소인 폴리프로필렌 다공필름의 제조방법.
  11. 제8항~제10항중의 어느 1항에 있어서, 상기 열처리 또는 연신을 폴리프로필렌을 실질적으로 용해하지 않는 상기 제1의 액체중에서 행한 후, 제1의 액체와 상용성이 있으며, 제1의 액체보다 비점이 낮고 폴리프로필렌과의 친화성이 뒤떨어지는 제2의 액체에 폴리프로필렌필름을 침지시킨 후에 건조하는 폴리프로필렌 다공필름의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019970014378A 1996-04-26 1997-04-18 폴리프로필렌다공필름의제조방법 Expired - Fee Related KR100456386B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10822796 1996-04-26
JP96-108227 1996-04-26
JP538997A JPH107832A (ja) 1996-04-26 1997-01-16 高強度ポリプロピレン多孔フィルム及びその製造方法
JP97-005389 1997-01-16

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KR100456386B1 KR100456386B1 (ko) 2005-02-23

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US (1) US5968994A (ko)
EP (1) EP0803341B1 (ko)
JP (1) JPH107832A (ko)
KR (1) KR100456386B1 (ko)
CN (1) CN1082883C (ko)
CA (1) CA2203734A1 (ko)
DE (1) DE69730896T2 (ko)
ID (1) ID16669A (ko)
SG (1) SG52959A1 (ko)
TW (1) TW438844B (ko)

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TW438844B (en) 2001-06-07
EP0803341B1 (en) 2004-09-29
EP0803341A2 (en) 1997-10-29
US5968994A (en) 1999-10-19
KR100456386B1 (ko) 2005-02-23
DE69730896D1 (de) 2004-11-04
SG52959A1 (en) 1998-09-28
CN1173425A (zh) 1998-02-18
CA2203734A1 (en) 1997-10-26
JPH107832A (ja) 1998-01-13
EP0803341A3 (en) 1998-03-18
CN1082883C (zh) 2002-04-17
ID16669A (id) 1997-10-30
DE69730896T2 (de) 2005-10-13

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