JPS57109615A - Method and apparatus for extruding colored thermoplastic resin sheet - Google Patents

Method and apparatus for extruding colored thermoplastic resin sheet

Info

Publication number
JPS57109615A
JPS57109615A JP56182399A JP18239981A JPS57109615A JP S57109615 A JPS57109615 A JP S57109615A JP 56182399 A JP56182399 A JP 56182399A JP 18239981 A JP18239981 A JP 18239981A JP S57109615 A JPS57109615 A JP S57109615A
Authority
JP
Japan
Prior art keywords
thermoplastic resin
resin sheet
colored thermoplastic
extruding
extruding colored
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.)
Granted
Application number
JP56182399A
Other languages
English (en)
Other versions
JPH0143606B2 (ja
Inventor
Ansonii Esupojito Robaato
Furanshisu Buare Furederitsuku
Chiyaaruzu Hougurando Jiyon
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.)
Monsanto Co
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Publication of JPS57109615A publication Critical patent/JPS57109615A/ja
Publication of JPH0143606B2 publication Critical patent/JPH0143606B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10559Shape of the cross-section
    • B32B17/10568Shape of the cross-section varying in thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • B29C48/175Articles comprising two or more components, e.g. co-extruded layers the components having different colours comprising a multi-coloured single component, e.g. striated, marbled or wood-like patterned
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/20Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/305Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165Functional features of the laminated safety glass or glazing
    • B32B17/10339Specific parts of the laminated safety glass or glazing being colored or tinted
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP56182399A 1980-11-17 1981-11-16 Method and apparatus for extruding colored thermoplastic resin sheet Granted JPS57109615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/207,323 US4316868A (en) 1980-11-17 1980-11-17 Extruding colored thermoplastic resin sheets

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2291684A Division JPH03205122A (ja) 1980-11-17 1990-10-29 熱可塑性樹脂シート押出装置用押出プローブ

Publications (2)

Publication Number Publication Date
JPS57109615A true JPS57109615A (en) 1982-07-08
JPH0143606B2 JPH0143606B2 (ja) 1989-09-21

Family

ID=22770052

Family Applications (2)

Application Number Title Priority Date Filing Date
JP56182399A Granted JPS57109615A (en) 1980-11-17 1981-11-16 Method and apparatus for extruding colored thermoplastic resin sheet
JP2291684A Granted JPH03205122A (ja) 1980-11-17 1990-10-29 熱可塑性樹脂シート押出装置用押出プローブ

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2291684A Granted JPH03205122A (ja) 1980-11-17 1990-10-29 熱可塑性樹脂シート押出装置用押出プローブ

Country Status (7)

Country Link
US (1) US4316868A (ja)
EP (1) EP0052491B1 (ja)
JP (2) JPS57109615A (ja)
AU (1) AU542889B2 (ja)
CA (1) CA1148318A (ja)
DE (1) DE3166204D1 (ja)
MX (1) MX158854A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007529341A (ja) * 2004-03-17 2007-10-25 クラレイ ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング 異なる組成の溶融物流を同時押出しする方法
WO2017212538A1 (ja) * 2016-06-07 2017-12-14 株式会社日本製鋼所 シート成形用ダイ、シートの成形方法及びシート

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239782C2 (de) * 1982-10-27 1985-01-31 Dynamit Nobel Ag, 5210 Troisdorf Vorrichtung zum Coextrudieren einer einen Farbkeil aufweisenden Folie aus einem ungefärbten thermoplastischen Kunststoff
DE3132509C2 (de) * 1981-08-18 1984-06-14 Dynamit Nobel Ag, 5210 Troisdorf Verfahren und Breitschlitzwerkzeug zur Herstellung einer Farbkeilfolie
US4562023A (en) * 1981-08-18 1985-12-31 Dynamit Nobel Aktiengesellschaft Process and apparatus for producing a synthetic resin sheet having a colored band of varying color intensity
JPS6161835A (ja) * 1984-08-31 1986-03-29 Sekisui Chem Co Ltd エンボス加工された熱可塑性樹脂シ−トの製造方法
US4731004A (en) * 1984-10-12 1988-03-15 Princeton Packaging, Inc. Side-by-side co-extrusion of film using multiple materials
US5087502A (en) * 1987-11-17 1992-02-11 Monsanto Company Process and intermediate sheet for forming shaped interlayer blanks
US5137673A (en) * 1987-11-17 1992-08-11 Monsanto Company Process for forming plasticized polyvinyl butyral sheet
US5217113A (en) * 1989-08-09 1993-06-08 Maruman Golf Kabushikikaisha Golf bag with transparent panel
US6534152B2 (en) 1989-09-28 2003-03-18 Ppg Industries Ohio, Inc. Windshield for head-up display system
US5812332A (en) * 1989-09-28 1998-09-22 Ppg Industries, Inc. Windshield for head-up display system
US5130174A (en) * 1989-10-12 1992-07-14 Monsanto Company Shaped interlayer blank
JPH0794142B2 (ja) * 1990-07-03 1995-10-11 積水化学工業株式会社 熱可塑性樹脂シートの製造装置及びそれを用いた熱可塑性樹脂シートの製造方法
US5110530A (en) * 1990-09-07 1992-05-05 W. R. Grace & Co.-Conn. Striped film method
US5234330A (en) * 1991-06-14 1993-08-10 Eastman Kodak Company Dies
EP0605416B1 (en) * 1991-09-27 1996-08-14 E.I. Du Pont De Nemours And Company Composite coating of variable thickness having a gradient coloration in the cross-web direction
US5639538A (en) * 1992-06-25 1997-06-17 E. I. Du Pont De Nemours And Company Shaped interlayers for head-up display windshields and process for preparing the same
US6077374A (en) * 1993-08-16 2000-06-20 Monsanto Method of preparing prelaminate using rough-surfaced interlayer
EP0646450B1 (en) * 1993-09-07 1998-11-11 EXTRUSION DIES, Inc. Apparatus for extruding thermoplastic materials
FR2717795B1 (fr) * 1994-03-22 1996-05-24 Saint Gobain Vitrage Vitrage pour véhicule et feuille de matière plastique utilisée dans ce vitrage.
US5607726A (en) * 1994-10-17 1997-03-04 E. I. Du Pont De Nemours And Company Process for the preparation of composite coatings with variable thickness
FR2761923B1 (fr) * 1997-04-10 1999-05-21 Saint Gobain Vitrage Vitrage feuillete et son procede de fabrication
US6447875B1 (en) * 1999-07-30 2002-09-10 3M Innovative Properties Company Polymeric articles having embedded phases
WO2001028744A1 (en) * 1999-10-18 2001-04-26 Exatec, Llc. Molded plastic automotive window panel and process of providing masking border
US6626206B1 (en) 2000-01-20 2003-09-30 Extrusion Dies, Inc. Feedblock for adjusting the dimensions of a set of co-extruded layers of a multi-layer sheet
EP1151844B1 (de) * 2000-05-03 2003-11-26 Swiss Caps Rechte und Lizenzen AG Verfahren und Vorrichtung zum Herstellen eines flexiblen Bandes aus wenigstens zwei verchiedenen, bei Wärmezufuhr fliessfähigen Massen
US7204944B2 (en) * 2003-09-23 2007-04-17 Pelican International Inc. Process and apparatus for creating color effects in extrudable material
JP4686208B2 (ja) * 2005-02-21 2011-05-25 積水化学工業株式会社 多層構造を有する熱可塑性樹脂シートの製造装置及び製造方法
US20080014414A1 (en) * 2006-07-13 2008-01-17 Vincent James Yacovone Windshield Interlayer Having a Gradient Region Having a White Coloration
US7842395B2 (en) * 2006-11-01 2010-11-30 Solutia Inc. Multiple layer interlayers having a gradient region
DE102008000685A1 (de) 2008-03-14 2009-09-17 Kuraray Europe Gmbh Farbige Zwischenschichtfolien für Verbundverglasungen mit verbesserter NIR-Transparenz
JP5533061B2 (ja) 2009-06-12 2014-06-25 パナソニック株式会社 密閉型圧縮機および冷凍装置
DE102010019941B4 (de) 2010-05-08 2014-11-13 Horst Pabst Vorrichtung zur Coextrusion von thermoplastischen Schmelzeströmen zur Herstellung von Verbundglasscheiben
US10525613B2 (en) 2015-12-23 2020-01-07 Pelican International Inc. Process, apparatus and system for creating extrudable material having color effects and products made with extrudable material created with same
KR102451436B1 (ko) 2016-05-09 2022-10-05 쿠라라이 유럽 게엠베하 다층 중간층 및 유리 적층체
JP2019535620A (ja) 2016-10-28 2019-12-12 クラレ・アメリカ・インコーポレイテッド 楔形多層中間膜及び合わせガラス
US20180326696A1 (en) 2017-05-10 2018-11-15 Kuraray Europe Gmbh Interlayer film with shade band
CA3009013C (en) 2018-04-23 2022-06-21 Pelican International Inc. Process, apparatus and system for creating extruded material having color effects and products made with extruded material created with same
KR20220114625A (ko) 2019-12-19 2022-08-17 솔루티아인코포레이티드 개선된 구배 밴드를 갖는 중간층

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945793A (en) * 1972-09-04 1974-05-01 Komayoshi Yasuoka u gatarentsukanshikiroeimokushisochi no ekitairyushutsuboshihoho
JPS5469172A (en) * 1977-11-15 1979-06-02 Kamaya Kagaku Kogyo Co Ltd Method of decorating plastics products

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1989371A (en) * 1932-07-29 1935-01-29 Sheet Polarizer Company Inc Method of making a product containing oriented asymmetric bodies
US3097058A (en) * 1960-08-01 1963-07-09 Phillips Petroleum Co Extrusion of thermoplastic resins
US3513060A (en) * 1963-05-13 1970-05-19 Rowland Products Inc Extruded sheet material having differentially colored bands and method for making same
US3444031A (en) * 1964-04-22 1969-05-13 Dow Chemical Co Light screens and method of making the same
US3354025A (en) * 1964-09-18 1967-11-21 Monsanto Co Color gradated laminates
US3405425A (en) * 1964-09-18 1968-10-15 Monsanto Co Apparatus for producing partially pigmented plastic sheets
US3400190A (en) * 1965-07-28 1968-09-03 Dow Chemical Co Method and apparatus for the extrusion of multi-layer film and sheet
US3540964A (en) * 1965-10-22 1970-11-17 Rowland Products Inc Method for extruding multicolored sheet material
US3471898A (en) * 1966-11-09 1969-10-14 Tectonic Ind Inc Apparatus for extruding plastic strips
US3473193A (en) * 1967-01-03 1969-10-21 Nat Distillers Chem Corp Reciprocating multi-orificed internal die diverter
US3608013A (en) * 1967-10-11 1971-09-21 British Celanese Optically patterned material
DE1729608A1 (de) * 1968-02-16 1971-07-01 Continental Gummi Werke Ag Spritzkopf fuer Reifenlaufstreifen
US3715420A (en) * 1969-07-19 1973-02-06 Sekisui Chemical Co Ltd Process for producing a thermoplastic resin sheet having a color band
GB1353932A (en) * 1970-07-01 1974-05-22 Daicel Ltd Method and apparatus for producing patterned thermoplastic sheet
DE2311164A1 (de) * 1972-06-19 1974-01-17 Welex Inc Verfahren und vorrichtung zur herstellung von mehrfach geschichteten folien
JPS51109954A (ja) * 1975-03-25 1976-09-29 Takiron Roorando Kk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945793A (en) * 1972-09-04 1974-05-01 Komayoshi Yasuoka u gatarentsukanshikiroeimokushisochi no ekitairyushutsuboshihoho
JPS5469172A (en) * 1977-11-15 1979-06-02 Kamaya Kagaku Kogyo Co Ltd Method of decorating plastics products

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007529341A (ja) * 2004-03-17 2007-10-25 クラレイ ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング 異なる組成の溶融物流を同時押出しする方法
JP4819790B2 (ja) * 2004-03-17 2011-11-24 クラレイ ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング 異なる組成の溶融物流を同時押出しする方法
WO2017212538A1 (ja) * 2016-06-07 2017-12-14 株式会社日本製鋼所 シート成形用ダイ、シートの成形方法及びシート

Also Published As

Publication number Publication date
MX158854A (es) 1989-03-20
EP0052491A2 (en) 1982-05-26
EP0052491A3 (en) 1983-04-06
AU7753381A (en) 1982-05-27
JPH03205122A (ja) 1991-09-06
AU542889B2 (en) 1985-03-21
EP0052491B1 (en) 1984-09-19
CA1148318A (en) 1983-06-21
JPH0541417B2 (ja) 1993-06-23
JPH0143606B2 (ja) 1989-09-21
DE3166204D1 (en) 1984-10-25
US4316868A (en) 1982-02-23

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