KR970025924A - 인플레이션 필름의 제조방법, 그 제조장치 및 그 성형품 - Google Patents

인플레이션 필름의 제조방법, 그 제조장치 및 그 성형품 Download PDF

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Publication number
KR970025924A
KR970025924A KR1019960050592A KR19960050592A KR970025924A KR 970025924 A KR970025924 A KR 970025924A KR 1019960050592 A KR1019960050592 A KR 1019960050592A KR 19960050592 A KR19960050592 A KR 19960050592A KR 970025924 A KR970025924 A KR 970025924A
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screw
molecular weight
inflation film
weight polyolefin
high molecular
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KR1019960050592A
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KR100385785B1 (ko
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타께시 시라끼
이와토시 스즈끼
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고다 시게노리
미쓰이세키유 가가쿠고교 가부시끼가이샤
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Publication of KR970025924A publication Critical patent/KR970025924A/ko
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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C55/30—Drawing through a die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

본 발명은 초고분자량의 폴리올레핀을 압출기에서 용융하고, 스크루다이로부터 용융된 폴리올레핀을 압출하고, 압출에 의해 형성된 용융된 튜브상 필름(tubular film)에 가스를 송풍하는 공정으로 된 인플레이션 필름의 제조방법. 인플레이션 필름의 제조장치는 제1의 스크루가 설치된 압출기와, 압출기의 단부에 설치된 L/D가 적어도 5 이상의 스크루다이, 제1의 스크루와 독립하여 회전하는 제2의 스쿠루와 제2의 스크루의 단부에 결합되어 제2의 스크루와 함께 회전하는 만드렐과, 만드렐이 삽입된 외측튜브다이와, 제2의 스크루와 만드렐내에서 신장한 가스통로로된 스크루다이로로 된 것이다. 인플레이션 필름은 파단점 인장강도가 기계방향으로 1660kg/cm2이상, 횡단방향으로 1600kg/cm2이상, 충격강도가 9500kg·cm/cm 이상, 두께가 10~1000μm, R 치가 10μm이하, 극한점도〔η〕가 적어도 7dℓ/g 이상의 초고분자량 폴리올레핀으로 된다.

Description

인플레이션 필름의 제조방법, 그 제조장치 및 그 성형품
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 인플레이견 필름 제조장치의 단면도.

Claims (8)

  1. 초고분자량의 폴리올레핀을 제1의 스크루가 장착된 압출기에서 용융하고; L/D가 적어도 5 이상의 스크루다이이며, 압출기의 제1의 스크루와 독립하여 회전하는 제2의 스크루와 상기 제2의 스크루의 단부에 접속된 만드렐로 된 스크루다이로부터 용융된 초고분자량 폴리올레핀을 압출하고, 필름에 가스를 송풍하여 용융된 필름을 팽창하여 인플레이션 필름을 제조하는 공정으로 된 초고분자량 폴리을레핀 인플레이션 필름의 제조방법.
  2. 제1항에 있어서, 압출기의 제1의 스크루의 회전속도와 스크루다이의 제2의 스크루의 회전속도는 서로 독립하여 변동하며, 제2의 스크루의 회전속도를 제1의 스크루의 회전속도보다 낮게 설정하는 초고분자량 폴리올레핀 인플레이션 필름의 제조방법.
  3. 제1항에 있어서, 초고분자량 폴리올레핀의 극한점도〔η〕는 5dℓ/g 이상의 초고분자량 폴리올레핀 인플레이션 필름의 제조방법.
  4. 제1항∼제3항 중의 어느 1항에 있어서, 초고분자량 폴리올레핀은 초고분자량 폴리에틸렌인 초고분자량 폴리올레핀 인플레이션 필름의 제조방법.
  5. 초고분자량의 폴리올레핀을 제1의 스크루가 장착된 암출기와; L/D가 적어도 5 이상의 스크루다이이며, 압출기의 제1의 스크루와 독립하여 회전하는 제2의 스크루와 상기 제2의 스크루의 단부에 접속되어 제2의 스크루와 함께 회전하는 만드렐과, 만드렐이 삽입된 외측튜브다이와, 가스를 도입하기 위해 제2의 스크루와 만드렐의 내부로 뻗은 통로로 되며, 제2의 스크루의 저부에서 압출기가 결합된 스크루다이로 된 인플레이션 필름의 제조장치.
  6. 제5항에 있어서, 안정봉은 만드렐의 상단부에 접속된 인플레이션 필름의 제조장치.
  7. 두께가 10~1000μm이고, 극한점도(η)가 적어도 7dℓ/g 이상의 초고분자량 폴리올레핀으로 된 인플레이션 필름에 있어서, 파단점 인장강도가 기계방향으로 1660kg/cm2이상, 횡단방향으로 1600kg/cm2이상, 충격강도가 9500kg·cm/cm 이상, 필름의 횡단방향으로 일정한 간격을 두고 32개점에서 측정한 최대 두께와 최소 두께의 차로 정의되는 필름 두께의 균일지수인 R치가 10μm 이하의 인플레이션 필름.
  8. 제7항에 있어서, 초고분자량 폴리올레핀이 초고분자량 폴리에틸렌인 인플레이션 필름.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019960050592A 1995-11-01 1996-10-31 인플레이션필름의제조방법,그제조장치및그성형품 KR100385785B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP28521695 1995-11-01
JP95-285216 1995-11-01
JP96-237865 1996-09-09
JP23786596A JP3670088B2 (ja) 1995-11-01 1996-09-09 インフレーションフィルムの製造方法、装置および成形体

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KR970025924A true KR970025924A (ko) 1997-06-24
KR100385785B1 KR100385785B1 (ko) 2003-08-21

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Country Link
US (1) US6007760A (ko)
EP (1) EP0771640B1 (ko)
JP (1) JP3670088B2 (ko)
KR (1) KR100385785B1 (ko)
CN (1) CN1092562C (ko)
CA (1) CA2189310C (ko)
DE (1) DE69613314T2 (ko)
MY (1) MY116576A (ko)
SG (1) SG55849A1 (ko)
TW (1) TW312649B (ko)

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Also Published As

Publication number Publication date
SG55849A1 (en) 2001-11-20
JPH09183156A (ja) 1997-07-15
US6007760A (en) 1999-12-28
EP0771640A1 (en) 1997-05-07
CA2189310A1 (en) 1997-05-02
KR100385785B1 (ko) 2003-08-21
TW312649B (ko) 1997-08-11
CA2189310C (en) 2005-02-15
DE69613314D1 (de) 2001-07-19
CN1092562C (zh) 2002-10-16
MY116576A (en) 2004-02-28
CN1165733A (zh) 1997-11-26
EP0771640B1 (en) 2001-06-13
JP3670088B2 (ja) 2005-07-13
DE69613314T2 (de) 2001-09-20

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