DE3783514T2 - Gamma-strahlungsfeste polypropylen-gegenstaende und verfahren zur deren herstellung. - Google Patents

Gamma-strahlungsfeste polypropylen-gegenstaende und verfahren zur deren herstellung.

Info

Publication number
DE3783514T2
DE3783514T2 DE8787304084T DE3783514T DE3783514T2 DE 3783514 T2 DE3783514 T2 DE 3783514T2 DE 8787304084 T DE8787304084 T DE 8787304084T DE 3783514 T DE3783514 T DE 3783514T DE 3783514 T2 DE3783514 T2 DE 3783514T2
Authority
DE
Germany
Prior art keywords
production
gamma radiation
resistant polypropylene
objects
polypropylene objects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8787304084T
Other languages
English (en)
Other versions
DE3783514D1 (de
Inventor
Dennis L C O Minnesota Krueger
Thomas I C O Minnesota Insley
Daniel E C O Minnesota M Meyer
Richard J C O Minnesot Rolando
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE3783514D1 publication Critical patent/DE3783514D1/de
Publication of DE3783514T2 publication Critical patent/DE3783514T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Veterinary Medicine (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)
  • Apparatus For Disinfection Or Sterilisation (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)
DE8787304084T 1986-05-08 1987-05-07 Gamma-strahlungsfeste polypropylen-gegenstaende und verfahren zur deren herstellung. Expired - Fee Related DE3783514T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86106886A 1986-05-08 1986-05-08

Publications (2)

Publication Number Publication Date
DE3783514D1 DE3783514D1 (de) 1993-02-25
DE3783514T2 true DE3783514T2 (de) 1993-08-05

Family

ID=25334790

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787304084T Expired - Fee Related DE3783514T2 (de) 1986-05-08 1987-05-07 Gamma-strahlungsfeste polypropylen-gegenstaende und verfahren zur deren herstellung.

Country Status (10)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
US5496295A (en) * 1991-12-18 1996-03-05 Minnesota Mining And Manufacturing Company Multilayered barrier structures
WO1993011938A1 (en) * 1991-12-18 1993-06-24 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
JPH07121991B2 (ja) 1995-12-25
CA1311719C (en) 1992-12-22
KR940008073B1 (ko) 1994-09-01
BR8702336A (pt) 1988-02-17
ES2036573T3 (es) 1993-06-01
JPS62273232A (ja) 1987-11-27
MX168272B (es) 1993-05-14
EP0248545B1 (de) 1993-01-13
EP0248545A3 (en) 1988-08-10
AR243795A1 (es) 1993-09-30
AU7262787A (en) 1987-11-12
KR870011283A (ko) 1987-12-22
EP0248545A2 (de) 1987-12-09
AU597975B2 (en) 1990-06-14
DE3783514D1 (de) 1993-02-25

Similar Documents

Publication Publication Date Title
DE3688093D1 (de) Durchsichtiger gegenstand und verfahren zu seiner herstellung.
DE68907057D1 (de) Naehrstoffzusammensetzung und verfahren zu deren herstellung.
DE3769400D1 (de) Verkapselte halbleiteranordnung und verfahren zu deren herstellung.
DE3585069D1 (de) Biologisch degradierbare form und verfahren zu deren herstellung.
DE3768530D1 (de) Methacrylatharz-zusammensetzung und verfahren zu deren herstellung.
DE3773981D1 (de) Fuellstoffhaltige polypropylenharzzusammensetzung und verfahren zu ihrer herstellung.
DE3679087D1 (de) Halbleitervorrichtung und verfahren zu seiner herstellung.
DE3775294D1 (de) Implantatwerkstoff und verfahren zu seiner herstellung.
DE3782201D1 (de) Halbleiterphotosensor und verfahren zu dessen herstellung.
DE3782952T2 (de) Supraleitende dipolmagnete und verfahren zu deren herstellung.
DE3688799D1 (de) Biologisch abbaubare mikrokugeln und verfahren zu deren herstellung.
DE3686444T2 (de) N-fluorpyridiniumsalz und verfahren zur herstellung.
DE3781280T2 (de) Thermoplastische elastomerzusammensetzungen und verfahren zu deren herstellung.
DE3687775D1 (de) Polymerpartikel und verfahren zu seiner herstellung.
DE3785547D1 (de) Thermoplastische elastomerzusammensetzung und verfahren zu deren herstellung.
DE3578270D1 (de) Feldeffekt-transistor-anordnung und verfahren zu deren herstellung.
DE3783514D1 (de) Gamma-strahlungsfeste polypropylen-gegenstaende und verfahren zur deren herstellung.
DE3874415T2 (de) Stranggepresster gegenstand und verfahren zur herstellung desselben.
DE3867928D1 (de) Gegenstaende aus polypropylen und verfahren zu deren herstellung.
DE3685209D1 (de) Urease und verfahren zu deren herstellung.
DE3679739D1 (de) Dekorative fassung und verfahren zu deren herstellung.
DE3770795D1 (de) Radierer und verfahren zu dessen herstellung.
DE3779946D1 (de) Antibiotikum a42125 und verfahren zu dessen herstellung.
DE3774615D1 (de) Packungsstruktur und verfahren zu dessen herstellung.
DE3675686D1 (de) Polyolefinteilchen und verfahren zu deren herstellung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee