KR870011283A - 방사된 폴리프로필렌 제품의 제법 - Google Patents

방사된 폴리프로필렌 제품의 제법 Download PDF

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Publication number
KR870011283A
KR870011283A KR870004447A KR870004447A KR870011283A KR 870011283 A KR870011283 A KR 870011283A KR 870004447 A KR870004447 A KR 870004447A KR 870004447 A KR870004447 A KR 870004447A KR 870011283 A KR870011283 A KR 870011283A
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South Korea
Prior art keywords
polypropylene
amorphous
injected
soaking
months
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KR870004447A
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KR940008073B1 (ko
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루이스 크루지 데니스
인슬리 인슬리 토마스
에드워드 메이어 다니엘
제임스 로란도 리차드
Original Assignee
도날드 밀러 셀
미네소타 마이닝 앤드 매뉴팩츄어링 컴패니
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Publication of KR870011283A publication Critical patent/KR870011283A/ko
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Publication of KR940008073B1 publication Critical patent/KR940008073B1/ko

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    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
    • 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
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0039—Amorphous

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Organic Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

내용 없음

Description

방사된 폴리프로필렌 제품의 제법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 (1)의 비결정성 준결정인 폴리프로필렌 필름의 X-레이 회절 패턴도이며,
제2도는 실시예 (2)의 비결정성 준결정인 폴리프로필렌 필름의 X-레이 회절 패턴도이며,
제3도는 실시예 (3)의 비결정성 준결정인 폴리프로필렌 필름의 X-레이 회절 패턴도이며,
제4도는 비교 실시예 (1)의 결정성 폴리프로필렌 필름의 X-레이 회절 패턴도이며,
제5도는 실시예 (4)의 비결정성 폴리프로필렌 필름의 X-레이 회절 패턴도이며,
제6도는 실시예 (5)의 비결정성 폴리프로필렌 필름의 X-레이 회절 패턴도이며,

Claims (12)

  1. a) 폴리프로필렌을 사출하고;
    b) 비결정성 준결정 폴리프로필렌을 제공하기 위해 사출직후 상기 사출된 폴리프로필렌을 담그고;
    c) 결정성 폴리프로필렌을 분해할 수 있는 이온 방사량으로 상기 비결정성 준결정 폴리프로필렌을 방사하는 것을 특징으로 하여 방사된 폴리프로필렌 제품울 제조하는 방법.
  2. 제1항에 있어서, 상기 사출된 폴리프로필렌은 블로운 마이크로 화이버 웨브의 형태이며 담금은 액체 냉각 스프레이를 상기 사출된 폴리프로필렌에 적용함으로서 수행하는 것을 특징으로 하는 방법.
  3. 제2항에 있어서, 상기 스프레이는 사출지점에서 약 2.5cm이하 떨어진 곳에 수행하는 것을 특징으로 하는 방법.
  4. 제2항에 있어서, 상기 스프레이는 약 100℃ 이하 의 온도에서 행 하는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 상기 사출된 폴리프로필렌은 블로운 마이크로 화이버 웨브의 형태이며 담금은 냉각 수집 드럼상에서 웨브를 수집함으로서 수행하는 것을 특징으로 하는 방법.
  6. 제5항에 있어서, 상기 드럼은 다이로부터 약 5-10cm 떨어진 곳에 위치하는 것을 특징으로 하는 방법.
  7. 제1항에 있어서, 상기 사출된 폴리프로필렌은 필림이며 담금은 냉각된 캐스팅 롤상에 사출된 폴리프로필렌을 캐스팅함으로서 수행하는 것을 특징으로 하는 방법.
  8. 제7항에 있어서, 상기 캐스팅롤은 사출지점에서 약 0.25-5cm 떨어진 곳에 위치하는 것을 특징으로 하는 방법.
  9. 제1항에 있어서,약 2.5-4.0Mrad 사이의 이온방사 멸균용량이 사용되는 것을 특징으로 하는 방법.
  10. 적어도 6개월간의 보관후 실질적으로 분해되지 않은 제1항의 방법으로 제조된 비결정성 준결정 폴리프로필렌으로부터 형성된 폴리프로필렌 제품.
  11. 제품은 밀폐된 콘테이너내에 포함된 비결정성 준결정 폴리프로필렌 제품이며, 이것은 밀폐된 콘테이너에 있을때 멸균되며 6개월간의 보관후 실질적으로 분해되지 않은 것을 특징으로 하는 제1항의 방법에 따라 제조된 감마방사멸균 프로필렌 제품을 함유하는 멸균 팩.
  12. 적어도 6개월간의 보관후 실질적으로 분해된 것을 특징으로 하는 제1항의 방법에 따라 제조된 방사 폴리프로필렌블로운 마이크로 화이버 웨브.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870004447A 1986-05-08 1987-05-07 방사선 저항성 폴리프로필렌 제품 및 이것의 제조 방법 KR940008073B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US86106886A 1986-05-08 1986-05-08
US861,068 1986-05-08
US861068 1986-05-08

Publications (2)

Publication Number Publication Date
KR870011283A true KR870011283A (ko) 1987-12-22
KR940008073B1 KR940008073B1 (ko) 1994-09-01

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KR1019870004447A KR940008073B1 (ko) 1986-05-08 1987-05-07 방사선 저항성 폴리프로필렌 제품 및 이것의 제조 방법

Country Status (10)

Country Link
EP (1) EP0248545B1 (ko)
JP (1) JPH07121991B2 (ko)
KR (1) KR940008073B1 (ko)
AR (1) AR243795A1 (ko)
AU (1) AU597975B2 (ko)
BR (1) BR8702336A (ko)
CA (1) CA1311719C (ko)
DE (1) DE3783514T2 (ko)
ES (1) ES2036573T3 (ko)
MX (1) MX168272B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140073A (en) * 1989-06-26 1992-08-18 Minnesota Mining And Manufacturing Company Radiation resistant heat sealable polymer blends of compatible polymers and methods of preparing same
US5209984A (en) * 1989-06-26 1993-05-11 Minnesota Mining And Manufacturing Company Films of radiation resistant heat sealable polymer blends having a surface adhesion layer grafted thereto
US5258419A (en) * 1989-06-26 1993-11-02 Minnesota Mining And Manufacturing Company Methods of preparing radiation resistant heat sealable polymer blends
JP2894823B2 (ja) * 1989-12-06 1999-05-24 三井化学株式会社 耐放射線ポリプロピレン樹脂組成物及び耐放射線成形物の製造方法
CA2123809A1 (en) * 1991-12-18 1993-06-24 Debra L. Wilfong Multilayered barrier structures
US5496295A (en) * 1991-12-18 1996-03-05 Minnesota Mining And Manufacturing Company Multilayered barrier structures
FI95153C (fi) * 1994-02-11 1995-12-27 Suominen Oy J W Menetelmä gamma-säteillytystä kestävän polypropeenikuidun valmistamiseksi säteilysteriloitavaa kuitukangasta varten sekä tähän liittyvänä mainitun mekaanisesti tai hydraulisesti sidottavan kuitukankaan valmistusmenetelmä
DE19621465A1 (de) * 1996-05-29 1997-12-04 Danubia Petrochem Deutschland Verwendung von Polypropylenen zur Verbesserung der Stabilität gegenüber ionisierender Strahlung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160475A (en) * 1978-06-09 1979-12-19 Sumitomo Bakelite Co Ltd Production of polypropylene sheet
NZ208423A (en) * 1983-10-26 1987-05-29 Becton Dickinson Co Sterilised, radiation-stabilised semi-crystalline polymer articles

Also Published As

Publication number Publication date
ES2036573T3 (es) 1993-06-01
CA1311719C (en) 1992-12-22
DE3783514T2 (de) 1993-08-05
EP0248545B1 (en) 1993-01-13
BR8702336A (pt) 1988-02-17
JPS62273232A (ja) 1987-11-27
AU597975B2 (en) 1990-06-14
AU7262787A (en) 1987-11-12
EP0248545A2 (en) 1987-12-09
EP0248545A3 (en) 1988-08-10
DE3783514D1 (de) 1993-02-25
MX168272B (es) 1993-05-14
KR940008073B1 (ko) 1994-09-01
AR243795A1 (es) 1993-09-30
JPH07121991B2 (ja) 1995-12-25

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