IT1114478B - Procedimento ed apparecchio per il trattamento di miscugli termoplastici per la produzione di espansi - Google Patents

Procedimento ed apparecchio per il trattamento di miscugli termoplastici per la produzione di espansi

Info

Publication number
IT1114478B
IT1114478B IT48360/79A IT4836079A IT1114478B IT 1114478 B IT1114478 B IT 1114478B IT 48360/79 A IT48360/79 A IT 48360/79A IT 4836079 A IT4836079 A IT 4836079A IT 1114478 B IT1114478 B IT 1114478B
Authority
IT
Italy
Prior art keywords
foams
procedure
treatment
production
thermoplastic mixtures
Prior art date
Application number
IT48360/79A
Other languages
English (en)
Other versions
IT7948360A0 (it
Original Assignee
Ladney M Jr
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 Ladney M Jr filed Critical Ladney M Jr
Publication of IT7948360A0 publication Critical patent/IT7948360A0/it
Application granted granted Critical
Publication of IT1114478B publication Critical patent/IT1114478B/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • 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
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
IT48360/79A 1978-03-17 1979-03-15 Procedimento ed apparecchio per il trattamento di miscugli termoplastici per la produzione di espansi IT1114478B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/887,616 US4185060A (en) 1978-03-17 1978-03-17 Method of manufacturing structural foam plastic products free from undesirable contaminant constituents

Publications (2)

Publication Number Publication Date
IT7948360A0 IT7948360A0 (it) 1979-03-15
IT1114478B true IT1114478B (it) 1986-01-27

Family

ID=25391519

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48360/79A IT1114478B (it) 1978-03-17 1979-03-15 Procedimento ed apparecchio per il trattamento di miscugli termoplastici per la produzione di espansi

Country Status (10)

Country Link
US (1) US4185060A (it)
JP (1) JPS585774B2 (it)
AU (1) AU522743B2 (it)
BR (1) BR7901667A (it)
CA (1) CA1103873A (it)
DE (1) DE2910504C2 (it)
FR (1) FR2419813A1 (it)
GB (1) GB2016359B (it)
IT (1) IT1114478B (it)
SE (1) SE434365B (it)

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US4409165A (en) * 1981-06-18 1983-10-11 The B. F. Goodrich Company Method and apparatus for extruding a cellular product
EP0102400B1 (de) * 1982-08-26 1987-01-14 HERMANN BERSTORFF Maschinenbau GmbH Entgasungsextruder
US4944906A (en) * 1988-10-11 1990-07-31 Spirex Corporation Methods of injection molding and extruding wet hygroscopic ionomers
US4992222A (en) * 1988-12-29 1991-02-12 General Electric Company Method for removing volatile substances from polyphenylene ether or polyphenylene ether/styrene resin compositions
AT393272B (de) * 1989-06-07 1991-09-25 Rettenbacher Markus Dipl Ing Verfahren zur herstellung von extrudierten, direkt expandierten biopolymerprodukten und holzfaserplatten, verpackungs- und isoliermaterialien
US5034171A (en) * 1989-11-30 1991-07-23 Air Products And Chemicals, Inc. Process for extruding thermoplastic materials using low pressure inert gases as foaming agents
US5236645A (en) * 1990-09-21 1993-08-17 Basf Corporation Addition of additives to polymeric materials
JPH0479623U (it) * 1990-11-22 1992-07-10
US5123828A (en) * 1991-04-24 1992-06-23 Cincinnati Milacron Inc. Extruder vent having recessed vent passageway opening
US5238633A (en) * 1991-05-24 1993-08-24 Duraplast Corporation Method and apparatus for recycling plastic waste into a thin profile, mechanically reinforced board
KR100363291B1 (ko) * 1994-12-27 2003-05-09 세키스이가세이힝코교가부시키가이샤 열가소성폴리에스테르계수지발포체의연속적제조방법및제조장치
US6234659B1 (en) 1998-09-25 2001-05-22 Hpm Corporation Surge suppressor for vented injection molding machine screw
US6056430A (en) * 1998-09-25 2000-05-02 Hpm Corporation Plasticating apparatus having a multichannel wave screw with a cross channel solids transition
US6132075A (en) * 1998-09-25 2000-10-17 Hpm Corporation Multichannel wave screw with a slush channel barrier section
US6432337B1 (en) * 1998-11-09 2002-08-13 James D. Fogarty Thermoplastic foam extrusion
US6113375A (en) * 1998-11-09 2000-09-05 Fogarty; James Thermoplastic foam extrusion assembly
FR2786123B1 (fr) * 1998-11-25 2001-02-09 Schmalbach Lubeca Procede et installation pour la fabrication d'une preforme, mettant en oeuvre des moyens de sechage perfectionnes, et recipient plastique obtenu a partir de la preforme
US6132076A (en) * 1998-12-09 2000-10-17 General Electric Company Single extruder screw for efficient blending of miscible and immiscible polymeric materials
US20020070288A1 (en) * 1999-11-08 2002-06-13 Abdeslam Bouti Mixer bushing to improve melt homogeneity in injection molding machines and hot runners
EP1293319A4 (en) * 2000-05-31 2006-05-24 Asahi Chemical Ind INJECTION MOLDING PROCESS
US6513963B2 (en) 2001-01-19 2003-02-04 Eastman Kodak Company Multi-staged vented extrusion screw with dual channel depth pumping section
WO2006126099A2 (en) * 2005-03-08 2006-11-30 Steer Engineering Private Limited Twin screw intake elements for an extruder system
AT9383U1 (de) * 2006-05-16 2007-09-15 Engel Austria Gmbh Verfahren zur herstellung geschäumter kunststoffkörper
IT1391389B1 (it) * 2008-10-06 2011-12-13 Bazzica Engineering Di Carlo Bazzica & C S A S Metodo per il cambio colore in una macchina di stampaggio di materiale plastico espanso e macchina di stampaggio implementante tale metodo
ITPR20080068A1 (it) * 2008-10-22 2010-04-23 Storci S P A Vite di compressione in macchine continue per estrusione e produzione pasta
US8308342B2 (en) * 2008-11-24 2012-11-13 Kraft Foods Global Brands Llc Processing elements for mixing meat products
US8187651B2 (en) 2008-11-24 2012-05-29 Kraft Foods Global Brands Llc Method and apparatus for continuous processing of whole muscle meat products
US8641263B2 (en) * 2008-11-24 2014-02-04 Kraft Foods Group Brands Llc Method and apparatus for continuous processing of whole muscle meat products
AT522425B1 (de) * 2019-03-20 2022-01-15 Erema Eng Recycling Maschinen & Anlagen Gmbh Schälschnecke
JP7485868B2 (ja) * 2019-06-18 2024-05-17 三菱エンジニアリングプラスチックス株式会社 ペレットの製造方法、スクリュー、および、押出機

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US2774105A (en) * 1954-04-27 1956-12-18 Du Pont Extraction-extrusion apparatus
US3150214A (en) * 1959-11-23 1964-09-22 Owens Illinois Glass Co Method of extruding a foamed plastic composition
US3115675A (en) * 1961-04-28 1963-12-31 Shell Oil Co Extrusion apparatus with degasification elements
US3151192A (en) * 1961-07-24 1964-09-29 Sun Chemical Corp Method of extruding a foamed thermoplastic product
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JPS4814021B1 (it) * 1967-04-13 1973-05-02
US3496603A (en) * 1967-08-17 1970-02-24 Johnson & Johnson Single screw extruder
GB1289863A (it) * 1968-10-21 1972-09-20
DE1964748B2 (de) * 1969-12-24 1973-12-13 Chemische Werke Huels Ag, 4370 Marl Verfahren zum Herstellen thermo plastischer Schaumkunststoff Form korper nach dem Spritzgießverfahren
DE2005095B2 (de) * 1970-02-04 1975-11-27 Krauss-Maffei Ag, 8000 Muenchen Einspritzeinheit einer SpritzgieBmaschine zum Verarbeiten von thermoplastischen Formmassen
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US3826477A (en) * 1971-04-13 1974-07-30 Meiki Seisakusho Kk Injection molding machine with a venting device
DE2311241B2 (de) * 1973-03-02 1977-06-23 Verfahren zum direkten kuehlen von geschmolzenen thermoplastischen kunststoffen bei einem extrusionsverfahren
US3927160A (en) * 1973-07-17 1975-12-16 Cosden Oil & Chem Co Formal profile extrusion process
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Also Published As

Publication number Publication date
IT7948360A0 (it) 1979-03-15
GB2016359A (en) 1979-09-26
FR2419813B1 (it) 1983-12-16
GB2016359B (en) 1982-09-02
AU4430479A (en) 1979-09-20
JPS54127977A (en) 1979-10-04
DE2910504C2 (de) 1984-02-02
DE2910504A1 (de) 1979-09-20
US4185060A (en) 1980-01-22
AU522743B2 (en) 1982-06-24
JPS585774B2 (ja) 1983-02-01
BR7901667A (pt) 1979-10-16
SE7902361L (sv) 1979-09-18
CA1103873A (en) 1981-06-30
SE434365B (sv) 1984-07-23
FR2419813A1 (fr) 1979-10-12

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