DE69328257D1 - Vorrichtung zur herstellung von koextrudierten mehrschichtartikeln mit einer grenzschutzschicht - Google Patents

Vorrichtung zur herstellung von koextrudierten mehrschichtartikeln mit einer grenzschutzschicht

Info

Publication number
DE69328257D1
DE69328257D1 DE69328257T DE69328257T DE69328257D1 DE 69328257 D1 DE69328257 D1 DE 69328257D1 DE 69328257 T DE69328257 T DE 69328257T DE 69328257 T DE69328257 T DE 69328257T DE 69328257 D1 DE69328257 D1 DE 69328257D1
Authority
DE
Germany
Prior art keywords
protective layer
coextruded multilayer
multilayer articles
border protective
producing coextruded
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
DE69328257T
Other languages
English (en)
Other versions
DE69328257T2 (de
Inventor
Ravi Ramanathan
J Schrenk
A Wheatley
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
Publication of DE69328257D1 publication Critical patent/DE69328257D1/de
Application granted granted Critical
Publication of DE69328257T2 publication Critical patent/DE69328257T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/71—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows for layer multiplication
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • B29C48/495—Feed-blocks
    • 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
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE69328257T 1992-10-02 1993-09-08 Vorrichtung zur herstellung von koextrudierten mehrschichtartikeln mit einer grenzschutzschicht Expired - Fee Related DE69328257T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/955,788 US5269995A (en) 1992-10-02 1992-10-02 Coextrusion of multilayer articles using protective boundary layers and apparatus therefor
PCT/US1993/008464 WO1994007677A1 (en) 1992-10-02 1993-09-08 Coextruded protective boundary multilayered articles and apparatus

Publications (2)

Publication Number Publication Date
DE69328257D1 true DE69328257D1 (de) 2000-05-04
DE69328257T2 DE69328257T2 (de) 2000-11-30

Family

ID=25497334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69328257T Expired - Fee Related DE69328257T2 (de) 1992-10-02 1993-09-08 Vorrichtung zur herstellung von koextrudierten mehrschichtartikeln mit einer grenzschutzschicht

Country Status (8)

Country Link
US (1) US5269995A (de)
EP (1) EP0663867B1 (de)
JP (1) JPH08501994A (de)
KR (1) KR100286968B1 (de)
AU (1) AU5102693A (de)
CA (1) CA2146011A1 (de)
DE (1) DE69328257T2 (de)
WO (1) WO1994007677A1 (de)

Families Citing this family (201)

* Cited by examiner, † Cited by third party
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US5946431A (en) * 1993-07-30 1999-08-31 Molecular Dynamics Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces
DE4326232A1 (de) * 1993-08-05 1995-02-09 Roehm Gmbh Kunststoff-Verbunde aus unverträglichen Kunststoffen
US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
US6498683B2 (en) * 1999-11-22 2002-12-24 3M Innovative Properties Company Multilayer optical bodies
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US5828488A (en) * 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US6096375A (en) * 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
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US6025897A (en) * 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US6101032A (en) * 1994-04-06 2000-08-08 3M Innovative Properties Company Light fixture having a multilayer polymeric film
US5451449A (en) * 1994-05-11 1995-09-19 The Mearl Corporation Colored iridescent film
US5751388A (en) 1995-04-07 1998-05-12 Honeywell Inc. High efficiency polarized display
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US5699188A (en) * 1995-06-26 1997-12-16 Minnesota Mining And Manufacturing Co. Metal-coated multilayer mirror
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US6080467A (en) 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
CN1106937C (zh) 1995-06-26 2003-04-30 美国3M公司 带有附加涂层或附加层的多层聚合物薄膜
KR100394313B1 (ko) 1995-06-26 2003-10-30 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 투명한다층디바이스
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US5867316A (en) * 1996-02-29 1999-02-02 Minnesota Mining And Manufacturing Company Multilayer film having a continuous and disperse phase
US5968666A (en) * 1996-03-08 1999-10-19 3M Innovative Properties Company Multilayer polyester film
US5795528A (en) * 1996-03-08 1998-08-18 Minnesota Mining And Manufacturing Company Method for making a multilayer polyester film having a low coefficient of friction
US5759467A (en) * 1996-03-08 1998-06-02 Minnesota Mining And Manufacturing Company Method for making multilayer polyester film
US5783283A (en) * 1996-03-08 1998-07-21 Minnesota Mining And Manufacturing Company Multilayer polyester film with a low coefficient of friction
US5661839A (en) 1996-03-22 1997-08-26 The University Of British Columbia Light guide employing multilayer optical film
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US5269995A (en) 1993-12-14
KR950703443A (ko) 1995-09-20
WO1994007677A1 (en) 1994-04-14
JPH08501994A (ja) 1996-03-05
CA2146011A1 (en) 1994-04-14
AU5102693A (en) 1994-04-26
DE69328257T2 (de) 2000-11-30
EP0663867B1 (de) 2000-03-29
KR100286968B1 (ko) 2001-04-16

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