CA972512A - Method and apparatus for multilayer coextrusion - Google Patents

Method and apparatus for multilayer coextrusion

Info

Publication number
CA972512A
CA972512A CA152,103A CA152103A CA972512A CA 972512 A CA972512 A CA 972512A CA 152103 A CA152103 A CA 152103A CA 972512 A CA972512 A CA 972512A
Authority
CA
Canada
Prior art keywords
multilayer coextrusion
coextrusion
multilayer
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
Application number
CA152,103A
Other versions
CA152103S (en
Inventor
Walter J. Schrenk
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.)
Dow Chemical Co
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 CA972512A publication Critical patent/CA972512A/en
Expired 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
    • B29C48/25—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
CA152,103A 1971-10-01 1972-09-19 Method and apparatus for multilayer coextrusion Expired CA972512A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA972512A true CA972512A (en) 1975-08-12

Family

ID=22681385

Family Applications (1)

Application Number Title Priority Date Filing Date
CA152,103A Expired CA972512A (en) 1971-10-01 1972-09-19 Method and apparatus for multilayer coextrusion

Country Status (12)

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

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US5353154A (en) * 1992-11-02 1994-10-04 The Dow Chemical Company Polymeric reflective materials utilizing a back light source
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US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
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US6088067A (en) * 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
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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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US5661839A (en) * 1996-03-22 1997-08-26 The University Of British Columbia Light guide employing multilayer optical film
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US5999316A (en) 1997-12-06 1999-12-07 3M Innovative Properties Company Light valve with rotating polarizing element
US6207260B1 (en) 1998-01-13 2001-03-27 3M Innovative Properties Company Multicomponent optical body
US6788463B2 (en) * 1998-01-13 2004-09-07 3M Innovative Properties Company Post-formable multilayer optical films and methods of forming
US6045894A (en) * 1998-01-13 2000-04-04 3M Innovative Properties Company Clear to colored security film
US6049419A (en) 1998-01-13 2000-04-11 3M Innovative Properties Co Multilayer infrared reflecting optical body
US6808658B2 (en) * 1998-01-13 2004-10-26 3M Innovative Properties Company Method for making texture multilayer optical films
WO1999036248A2 (en) 1998-01-13 1999-07-22 Minnesota Mining And Manufacturing Company Process for making multilayer optical films
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
JP3866747B2 (en) * 2002-10-15 2007-01-10 シャープ株式会社 Solar cell module
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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JP2008517800A (en) * 2004-10-22 2008-05-29 ダウ グローバル テクノロジーズ インコーポレイティド Plastic composite article and manufacturing method thereof
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US9028108B2 (en) 2007-05-20 2015-05-12 3M Innovative Properties Company Collimating light injectors for edge-lit backlights
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Also Published As

Publication number Publication date
NL7213142A (en) 1973-04-03
BE789478A (en) 1973-03-29
AU459221B2 (en) 1975-03-20
AU4691072A (en) 1974-03-28
NL174633B (en) 1984-02-16
DE2247955C2 (en) 1983-10-20
FR2156604A1 (en) 1973-06-01
JPS4843764A (en) 1973-06-23
IT965486B (en) 1974-01-31
JPS5620172B2 (en) 1981-05-12
BR7206808D0 (en) 1973-10-09
GB1408622A (en) 1975-10-01
DE2247955A1 (en) 1973-04-12
US3773882A (en) 1973-11-20
FR2156604B1 (en) 1976-08-13
NL174633C (en) 1984-07-16
SE426218B (en) 1982-12-20

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