KR870001016A - 미소다공성 폴리에틸렌 필름 및 이의 제조방법. - Google Patents

미소다공성 폴리에틸렌 필름 및 이의 제조방법. Download PDF

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KR870001016A
KR870001016A KR1019860005834A KR860005834A KR870001016A KR 870001016 A KR870001016 A KR 870001016A KR 1019860005834 A KR1019860005834 A KR 1019860005834A KR 860005834 A KR860005834 A KR 860005834A KR 870001016 A KR870001016 A KR 870001016A
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에이지이 해머 에드워드
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세라니이즈 코오포레이션
로널드 케이 실버스텐
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    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
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    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
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    • H01M50/411—Organic material
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

내용 없음.

Description

미소다공성 폴리에틸렌 필름 및 이의 제조방법.
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1,2,는 4개의 총 팽창들 각각의 필름 투과성에 대한 본 발명의 효과를 나타내는 그래프이고
제5도는 폴리프로필렌 필름의 투과성에 대한 본 발명의 효과를 나타내는 그래프이다.

Claims (20)

  1. (a) 적어도 거의 0.960gm/㎤의 밀도 및 적어도 99wt%의 에틸렌을 갖는 폴리에틸렌 수지를 약 20 : 1∼약 200 : 1의 인락비(引落比)로 용융 압출시켜 압출된 필름 전구체를 형성하고, (b) 상기 압출된 필름 전구체를 상기 수지의 결정융점 보다, 약 10℃∼약 25℃ 낮은 범위의 온도에서 어니일링하여 압출된 필름 전구체의 결정성을 개선하고 신장되지 않은, 어니일링된 필름 전구체를 형성하고, (c) 상기 어니일링된 필름 전구체를 저온 신장길이가 상기 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로 하는, 약 120%∼약 160%의 저온신장 길이를 얻기 위해, 약 -20℃∼약 70℃의 범위의 온도에서 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로 분당 적어도 75%의 저온 신장률로 단일축으로 저온 신장시켜서, 저온 신장된 필름 전구체를 형성하고, (d) 상기 저온 신장된 필름 전구체를 고온신장 길이가 상기 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로 하는, 약 235%∼약 310%의 고온 신장길이를 얻기 위하여, 저온 신장된 필름 전구체의 결정성을 유지하기 위하여, (c)의 온도 이상에서 수지의 결정융점보다 약 10℃∼약 25℃ 낮은 온도까지의 범위의 온도에서 상기 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로 분당 75%이하의 고온 신장률로 상기 저온 신장과 같은 단일축 방향으로 고온 신장시켜서, 미소다공성 폴리에틸렌 필름을 형성하는 것으로 구성되는 미소다공성 폴리에틸렌 필름의 제조방법.
  2. 제1항에 있어서, 미소다공성 폴리에틸렌 필름을 (c)의 온도 이상에서 (b)의 온도 또는 그 이하까지의 범위의 온도에서, 상기 어니일링된 필름 전구체의 길이를 기초로 하여 약 40%∼약 50%로 상기 저온 신장 및 상기 고온 신장과 같은 단일축 방향으로 완화시키는 방법.
  3. 제1항에 있어서, 상기 저온 신장률이 분당 적어도 100%인 방법.
  4. 제1항에 있어서, 상기 고온 신장률이 분당 34%이하인 방법.
  5. 제1항에 있어서, 상기 저온 신장길이 및 상기 고온신장 길이의 합이 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로하여 적어도 140%인 방법.
  6. 제1항에 있어서, 용융 압출이 환상 다이를 통하여 수행되는 방법.
  7. 제1항에 있어서, 저온 신장률이 분당 적어도 170%이고 저온 신장길이가 적어도 50%인 방법.
  8. 제1항에 있어서, 고온 신장률이 분당 30%이하이고, 고온 신장길이가 적어도 90%인 방법.
  9. 제1항에 있어서, 고온신장 길이가 저온신장 길이보다 큰 방법.
  10. (a) 적어도 거의 0.960gm/㎤의 밀도 및 적어도 99wt%의 에틸렌을 갖는 폴리에틸렌 수지를 약 20 : 1∼약 200 : 1의 인락비(引落比)로 용융 압출시켜 압출된 필름 전구체를 형성하고, (b) 상기 압출된 필름을 수지의 결정 융점보다, 약 10℃∼약 25℃ 낮은 범위의 온도에서 어니일링하여 압출된 필름 전구체의 결정성을 개선하고, 신장되지 않은, 어니일링된 필름 전구체를 형성하고, (c) 상기 어니일링된 필름 전구체를 저온 신장길이가 상기 어니일링된 필름 전구체의 길이를 기초로하는, 약 190%∼200%의 저온 신장길이를 얻기 위해, 약-20℃∼약 70℃의 범위의 온도에서 상기 어니일링된 필름 전구체의 길이를 기초로 분당 약380%∼분당 440%의 저온 신장률로 단일축으로 저온신장시켜서, 저온신장된 필름 전구체를 형성하고, (d) 상기 저온 신장된 필름 전구체를 고온신장 길이가 상기 어니일링된 필름 전구체의 길이를 기초로 하는, 약 240%의 고온 신장길이를 얻기 위하여, 저온 신장된 필름 전구체의 결정성을 유지하기 위하여 (c)의 온도 이상에서 수지의 결정 융점보다 약 10℃∼약25℃ 낮은 온도까지의 범위의 온도에서 어니일링된 필름 전구체의 길이를 기초로하여 분당 약 105%의 고온 신장률로 상기 저온 신장과 같은 단일축 방향으로 고온 신장시켜서, 고온 신장된 필름 전구체를 형성하고, (e) 상기 고온 신장된 필름 전구체를, 길이 감소가 상기 어니일링된 필름 전구체의 길이를 기초로 하고 상기 고온 신장된 필름 전구체의 길이를 상기 저온 신장과 같은 단일축 방향으로 0%∼약 30% 감소시키기 위하여, 고온 신장된 필름 전구체의 결정성을 유지하기 위하여 (c)의 온도 이상에서 (b)의 온도 또는 그 이하까지의 범위의 온도에서 장력하에서 열완화하여, 미소다공성 폴리에틸렌 필름을 형성하는 것으로 구성되는 미소다공성 폴리에틸렌 필름의 제조방법.
  11. 제10항에 있어서, (e)과정시 길이의 감소가 0%인 방법.
  12. 제10항에 있어서, (e)과정시, 길이의 감소가 약 5%~약 10%인 방법.
  13. 제10항에 있어서, 열완화된 필름을 (c)의 온도 이상에서 (b)의 온도 또는 그 이하까지 범위의 온도에서 일정한 길이로 장력하에서 열 셋팅하는 방법.
  14. 제10항에 있어서, (b) 과정이 약 20분간인 방법.
  15. 제10항에 있어서, (a)의 필름의 두께가 89밀 또는 그 이하인 방법.
  16. 제13항에 있어서, 열 완화된 필름을 일정한 길이로 열 완화시켜서 상기 신장되지 않은 어니일링된 필름 전구체의 길이를 기초로 30%이하의 길이 감소를 얻는 방법.
  17. 제10항에 있어서, 용융 압출이 환상 다이를 통하여 수행되는 방법.
  18. 제1항 또는 제10항에 있어서, (a)의 필름의 두께가 약 0.2밀∼약 2.0 밀인 방법.
  19. 제1항의 방법에 의해 생산된 미소다공성 폴리에틸렌 필름.
  20. 제10항의 방법에 의해 생산된 미소다공성 폴리에틸렌 필름.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860005834A 1985-07-19 1986-07-18 미소다공성 폴리에틸렌 필름 및 이의 제조방법 KR940000967B1 (ko)

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Application Number Priority Date Filing Date Title
US06/756,527 US4620956A (en) 1985-07-19 1985-07-19 Process for preparing microporous polyethylene film by uniaxial cold and hot stretching
US756527 1985-07-19
US756,527 1985-07-19

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AT (1) ATE56216T1 (ko)
AU (1) AU591917B2 (ko)
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DE (1) DE3673908D1 (ko)
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CA1312431C (en) 1993-01-12
ATE56216T1 (de) 1990-09-15
AU591917B2 (en) 1989-12-21
EP0210059A1 (en) 1987-01-28
IL79444A0 (en) 1986-10-31
EP0210059B1 (en) 1990-09-05
JPS62121737A (ja) 1987-06-03
ZA865172B (en) 1987-03-25
AU6032286A (en) 1987-01-22
DE3673908D1 (de) 1990-10-11
US4620956A (en) 1986-11-04
KR940000967B1 (ko) 1994-02-07
JPH0618915B2 (ja) 1994-03-16

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