KR910011467A - 다층 폴리테트라플루오로에틸렌 다공성 막 및 반-소결된 폴리테트라플루오로에틸렌 다층 구조물의 제조방법 - Google Patents

다층 폴리테트라플루오로에틸렌 다공성 막 및 반-소결된 폴리테트라플루오로에틸렌 다층 구조물의 제조방법 Download PDF

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KR910011467A
KR910011467A KR1019900019991A KR900019991A KR910011467A KR 910011467 A KR910011467 A KR 910011467A KR 1019900019991 A KR1019900019991 A KR 1019900019991A KR 900019991 A KR900019991 A KR 900019991A KR 910011467 A KR910011467 A KR 910011467A
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polytetrafluoroethylene
sintered
multilayer structure
semi
multilayer
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KR1019900019991A
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KR0150642B1 (ko
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신지 타마루
카츠토시 야마모토
오사무 타나카
히로후미 니시바야시
오사무 이노우에
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원본 미기재
다이킨 코교 가부시키가이샤
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Priority claimed from JP1320274A external-priority patent/JPH078927B2/ja
Priority claimed from JP5775990A external-priority patent/JPH0694186B2/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1212—Coextruded layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/36—Polytetrafluoroethene
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/006—Pressing and sintering powders, granules or fibres
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/94—Lubricating
    • B29C48/95—Lubricating by adding lubricant to the moulding material
    • 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
    • B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • 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
    • 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
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

내용 없음

Description

다층 폴리테트라플루오로에틸렌 다공성 막 및 반-소결된 폴리테트라플루오로에틸렌 다층 구조물의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방법의 한 양태에 따른 다층 예비 성형체의 제조단계를 도식적으로 나타낸 것이며, 제2도는 본 발명의 방법의 한 양태에 따라 예비성형되는 페이스트 압출상태를 도시한 단면도.

Claims (7)

  1. 액체 활탁제가 각각 혼합된 두 종류 이상의 폴리테트라플루오로에틸렌 미세분말로 압출금형의 실린더의 내부를구별되게 충진시키고,분말을 페이스트-압출시켜 다층 혼합물을 형성키신 후, 임의로 압연하고, 다층 압출물 또는 압연된 다층 압출물로 부터 액체 활탁제를 제거하여 비-소결된 다층 구조물을 수득한 다음, 비-소결된 다층 구조물을 소결된 폴리테트라 플루오로에틸렌의 융점 이상의 온도에서 가열하여 반-소결된 다층 구조물을 수득하고, 이어서, 반-소결된 다층 구조물을 적어도 일축으로 신장시키는 단계를 포함함을 특징으로 하여, 평균 기공직경이 상이한 둘 이상의 층을 함유하는 다층 폴리테트라플루오로에틸렌 다공성막을 제조하는 방법.
  2. 제1항에 있어서, 폴리테트라플루오로에틸렌 미세분말들 중 하나 이상이, 차동주사열량계를 측정한 결정용 융곡선상의 흡열 피이크가 다른 분말들과 상이한 방법.
  3. 제1항에 있어서, 폴리테트라플루오로에틸렌 미세분말로부터 제조된 반-소결된 다층 구조물에서, 상기 반-소결된 다층 구조물을 구성하는 각각의 층들이 최고치와 최저치 사이의 차이가 0.1 이상인 결정 전이를 갖는 방법.
  4. 제1항에 있어서, 폴리테트라 플루오로에틸렌 미세분말들 중 하나 이상이 비-섬유 형성물질을 함유하는 방법.
  5. 둘 이상의 폴리테트라플루오로에틸렌 층을 함유하는 비-소결된 다층 구조물을 소결된 폴리테트라플루오로에틸렌의 융점 이상의 온도에서 가열함으로써 제조되며, 이와 같이 제조된 반-소결된 폴리테트라플루오로에틸렌 다층 구조물을 구성하는 폴리테트라플루오로에틸렌층 각각은 차동주사열량계로 측정한 결정용융곡선상에서 332 내지 348℃의 온도에서 뚜렷한 흡열 피이크를 가지며 0.10 내지 0.85의 결정전이를 갖는, 반-소결된 폴리테트라플루오로에틸렌 다층 구조물.
  6. 제5항에 있어서, 반-소결된 다층 구조물을 구성하는 폴리테트라플루오로에틸렌 층들이 폴리테트라플루오로에틸렌 미세분말들로 각각 제조되며, 상기 미세분말들 중 하나 이상은 차동주사열량계로 측정한 결정용융곡선상의 흡열 피이크가 다른 분말들과 상이한, 반-소결된 폴리테트라플루오로에틸렌 다층 구조물.
  7. 제5항에 있어서, 반-소결된 다층 구조물을 구성하는 폴리테트라플루오로에틸렌 층들이 폴리테트라플루오로에틸렌 미세분말들로 각각 제조되며, 상기 미세분말들 중 하나 이상은 비-섬유형성물질을 함유하는, 반-소결된 폴리테트라플루오로에틸렌 다층 구조물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900019991A 1989-12-07 1990-12-06 다층 폴리테트라플루오로에틸렌 다공성 막의 제조방법 및 반소결된 폴리테트라플루오로에틸렌 다층 구조물 KR0150642B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP1-320274 1989-12-07
JP89-320274 1989-12-07
JP1320274A JPH078927B2 (ja) 1989-12-07 1989-12-07 ポリテトラフルオロエチレン複層多孔膜の製造方法
JP2-57759 1990-03-08
JP5775990A JPH0694186B2 (ja) 1990-03-08 1990-03-08 ポリテトラフルオロエチレン複層半焼成体
JP90-57759 1990-03-08

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Publication Number Publication Date
KR910011467A true KR910011467A (ko) 1991-08-07
KR0150642B1 KR0150642B1 (ko) 1998-10-01

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KR (1) KR0150642B1 (ko)
CN (1) CN1029201C (ko)
AU (1) AU626185B2 (ko)
BR (1) BR9006234A (ko)
CA (1) CA2031808C (ko)
DE (1) DE69014853T2 (ko)
ES (1) ES2067637T3 (ko)
PL (1) PL288122A1 (ko)
RU (1) RU2124391C1 (ko)

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JPH078926B2 (ja) * 1989-12-07 1995-02-01 ダイキン工業株式会社 ポリテトラフルオロエチレン複層多孔膜の製造方法
CA2074349C (en) * 1991-07-23 2004-04-20 Shinji Tamaru Polytetrafluoroethylene porous film and preparation and use thereof
ATE182187T1 (de) * 1992-03-13 1999-07-15 Atrium Medical Corp Gegenstände aus expandiertem fluorpolymer (z. b. polytetrafluorethylen) mit komtrolliert eingestellter porosität, sowie seine herstellung
AT399882B (de) * 1993-11-03 1995-08-25 Chemiefaser Lenzing Ag Monoaxial verstreckter formkörper aus polytetrafluorethylen und verfahren zu seiner herstellung
DE4436495A1 (de) * 1994-10-12 1996-04-18 Gore W L & Ass Gmbh Verfahren zur Abdichtung von Schuhen im Sohlenbereich
DE19544912A1 (de) * 1995-12-01 1997-06-05 Gore W L & Ass Gmbh PTFE-Körper aus mikroporösem Polytetrafluorethylen mit Füllstoff und Verfahren zu dessen Herstellung
RU2203685C2 (ru) * 2001-06-26 2003-05-10 Закрытое акционерное общество "Научно-производственный комплекс "Экофлон" Имплантат для восстановительной хирургии
JP2005510608A (ja) * 2001-11-21 2005-04-21 ポレックス，コーポレーション 個別の親水性−疎水性多孔質材料およびその製造方法
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EP0437721A1 (en) 1991-07-24
ES2067637T3 (es) 1995-04-01
DE69014853T2 (de) 1995-05-04
PL288122A1 (en) 1991-08-26
CA2031808C (en) 2002-01-22
CN1029201C (zh) 1995-07-05
CA2031808A1 (en) 1991-06-08
KR0150642B1 (ko) 1998-10-01
CN1052797A (zh) 1991-07-10
AU626185B2 (en) 1992-07-23

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