IT965486B - Procedimento ed apparecchio per la co estrusione a piu strati di materiali plastici - Google Patents

Procedimento ed apparecchio per la co estrusione a piu strati di materiali plastici

Info

Publication number
IT965486B
IT965486B IT52934/72A IT5293472A IT965486B IT 965486 B IT965486 B IT 965486B IT 52934/72 A IT52934/72 A IT 52934/72A IT 5293472 A IT5293472 A IT 5293472A IT 965486 B IT965486 B IT 965486B
Authority
IT
Italy
Prior art keywords
multilayer
extrusion
procedure
equipment
plastic materials
Prior art date
Application number
IT52934/72A
Other languages
English (en)
Inventor
W Schrenk
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of IT965486B publication Critical patent/IT965486B/it

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
    • B29C48/25—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
    • B29C48/03—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT52934/72A 1971-10-01 1972-09-23 Procedimento ed apparecchio per la co estrusione a piu strati di materiali plastici IT965486B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18553471A 1971-10-01 1971-10-01

Publications (1)

Publication Number Publication Date
IT965486B true IT965486B (it) 1974-01-31

Family

ID=22681385

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52934/72A IT965486B (it) 1971-10-01 1972-09-23 Procedimento ed apparecchio per la co estrusione a piu strati di materiali plastici

Country Status (12)

Country Link
US (1) US3773882A (it)
JP (1) JPS5620172B2 (it)
AU (1) AU459221B2 (it)
BE (1) BE789478A (it)
BR (1) BR7206808D0 (it)
CA (1) CA972512A (it)
DE (1) DE2247955C2 (it)
FR (1) FR2156604B1 (it)
GB (1) GB1408622A (it)
IT (1) IT965486B (it)
NL (1) NL174633C (it)
SE (1) SE426218B (it)

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US6025897A (en) 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US5828488A (en) * 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
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US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
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US5500173A (en) * 1995-02-17 1996-03-19 Basf Corporation Method of making molded muticomponent articles using a thin plate flow distributor
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JP4122057B2 (ja) 1995-06-26 2008-07-23 スリーエム カンパニー 追加のコーティングまたは層を備えた多層ポリマーフィルム
US6080467A (en) 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
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US5686979A (en) * 1995-06-26 1997-11-11 Minnesota Mining And Manufacturing Company Optical panel capable of switching between reflective and transmissive states
EP0832392B1 (en) 1995-06-26 2003-08-13 Minnesota Mining And Manufacturing Company Backlight system with multilayer optical film reflector
US6088067A (en) * 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
US5699188A (en) * 1995-06-26 1997-12-16 Minnesota Mining And Manufacturing Co. Metal-coated multilayer mirror
EP0835294B1 (en) 1995-06-26 2003-01-29 Minnesota Mining And Manufacturing Company Light diffusing adhesive
US6737154B2 (en) 1995-06-26 2004-05-18 3M Innovative Properties Company Multilayer polymer film with additional coatings or layers
CA2227564C (en) * 1995-08-11 2006-04-04 Minnesota Mining And Manufacturing Company Electroluminescent lamp using multilayer optical film
US5661839A (en) * 1996-03-22 1997-08-26 The University Of British Columbia Light guide employing multilayer optical film
US5808798A (en) * 1996-03-27 1998-09-15 Minnesota Mining And Manufacturing Co. Nonpolarizing beamsplitter
US5808794A (en) * 1996-07-31 1998-09-15 Weber; Michael F. Reflective polarizers having extended red band edge for controlled off axis color
US5976424A (en) * 1996-07-31 1999-11-02 Minnesota Mining And Manufacturing Company Method for making multilayer optical films having thin optical layers
US5999316A (en) 1997-12-06 1999-12-07 3M Innovative Properties Company Light valve with rotating polarizing element
KR100601228B1 (ko) 1998-01-13 2006-07-19 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 다층 광학 필름의 제조 방법
US6808658B2 (en) * 1998-01-13 2004-10-26 3M Innovative Properties Company Method for making texture multilayer optical films
US6045894A (en) * 1998-01-13 2000-04-04 3M Innovative Properties Company Clear to colored security film
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US6049419A (en) 1998-01-13 2000-04-11 3M Innovative Properties Co Multilayer infrared reflecting optical body
US6788463B2 (en) 1998-01-13 2004-09-07 3M Innovative Properties Company Post-formable multilayer optical films and methods of forming
US6475608B2 (en) 1998-11-16 2002-11-05 Engelhard Corporation Multi-layer iridescent films
US20010046086A1 (en) * 1998-12-23 2001-11-29 3M Innovative Properties Company Polymeric interference film
US20040185258A1 (en) * 2001-08-13 2004-09-23 Tatsuo Fukushi Electron beam-bonded multilayer laminated body and process for its production
US6905324B2 (en) * 2002-04-26 2005-06-14 Cloeren Incorporated Interface control
AU2003272986A1 (en) * 2002-10-15 2004-05-04 Sharp Kabushiki Kaisha Solar cell and solar cell module using same
US7105117B2 (en) * 2003-01-06 2006-09-12 General Motors Corporation Manufacturing method for increasing thermal and electrical conductivities of polymers
US7420756B2 (en) 2003-05-20 2008-09-02 Donnelly Corporation Mirror reflective element
US7172008B2 (en) * 2003-09-18 2007-02-06 Velcro Industries B.V. Hook fasteners and methods of making the same
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US20050090616A1 (en) * 2003-10-27 2005-04-28 Dias Anthony J. Microlayered composites and processes for making the same
US20060024491A1 (en) * 2004-07-27 2006-02-02 Engelhard Corporation Optical effect films with customized central layer
US20080265464A1 (en) * 2004-10-22 2008-10-30 D Hooghe Edward L Apparatus and Process for Manufacturing Shaped Plastic Reinforced Composite Articles
US7602108B2 (en) * 2005-05-26 2009-10-13 Eastman Chemical Company Micro-coextruded film modified with piezoelectric layers
US7180779B2 (en) * 2005-07-11 2007-02-20 Atmel Corporation Memory architecture with enhanced over-erase tolerant control gate scheme
US20070014977A1 (en) * 2005-07-12 2007-01-18 Daniel Graney Multilayer Film
US20070047080A1 (en) * 2005-08-31 2007-03-01 3M Innovative Properties Company Methods of producing multilayer reflective polarizer
US7357890B2 (en) 2005-10-18 2008-04-15 Cryovac, Inc. Apparatus and method for extruding a multilayered structure
US20070237918A1 (en) * 2006-04-06 2007-10-11 3M Innovative Properties Company Wrapping material comprising a multilayer film as tear strip
US20080274340A1 (en) * 2007-05-04 2008-11-06 Giammatteo Marc W Non-specular iridescent films
TWI458918B (zh) 2007-05-20 2014-11-01 3M Innovative Properties Co 具有有利設計特性之薄形中空背光
EP2500767A1 (en) 2007-05-20 2012-09-19 3M Innovative Properties Company Semi-specular reflecting components in backlights, which have a thin hollow cavity and recycle the light
EP2535766A3 (en) 2007-05-20 2013-05-01 3M Innovative Properties Company Asymmetric reflective film and backlight having a hollow cavity, which recycles the light
US9028108B2 (en) 2007-05-20 2015-05-12 3M Innovative Properties Company Collimating light injectors for edge-lit backlights
US20090223025A1 (en) * 2007-12-20 2009-09-10 Issac Cyrluk Support chord protector
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JP7237006B2 (ja) 2017-03-02 2023-03-10 スリーエム イノベイティブ プロパティズ カンパニー 光学式キャリパ感度の低い動的反射カラーフィルム
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Also Published As

Publication number Publication date
CA972512A (en) 1975-08-12
NL174633C (nl) 1984-07-16
BE789478A (fr) 1973-03-29
FR2156604A1 (it) 1973-06-01
AU4691072A (en) 1974-03-28
BR7206808D0 (pt) 1973-10-09
NL174633B (nl) 1984-02-16
DE2247955A1 (de) 1973-04-12
NL7213142A (it) 1973-04-03
US3773882A (en) 1973-11-20
DE2247955C2 (de) 1983-10-20
JPS4843764A (it) 1973-06-23
JPS5620172B2 (it) 1981-05-12
AU459221B2 (en) 1975-03-20
SE426218B (sv) 1982-12-20
GB1408622A (en) 1975-10-01
FR2156604B1 (it) 1976-08-13

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