IT8422972A0 - Dispositivo per produrre materiali sintetici termoplastici schiumati, come polistirolo, polietilene osimilari. - Google Patents

Dispositivo per produrre materiali sintetici termoplastici schiumati, come polistirolo, polietilene osimilari.

Info

Publication number
IT8422972A0
IT8422972A0 IT8422972A IT2297284A IT8422972A0 IT 8422972 A0 IT8422972 A0 IT 8422972A0 IT 8422972 A IT8422972 A IT 8422972A IT 2297284 A IT2297284 A IT 2297284A IT 8422972 A0 IT8422972 A0 IT 8422972A0
Authority
IT
Italy
Prior art keywords
polystyrene
polyethylene
similar
synthetic materials
thermoplastic synthetic
Prior art date
Application number
IT8422972A
Other languages
English (en)
Other versions
IT1178554B (it
IT8422972A1 (it
Inventor
Klaus Dieter Kolossow
Original Assignee
Berstorff Gmbh Masch Hermann
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 Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Publication of IT8422972A0 publication Critical patent/IT8422972A0/it
Publication of IT8422972A1 publication Critical patent/IT8422972A1/it
Application granted granted Critical
Publication of IT1178554B publication Critical patent/IT1178554B/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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/265—Support structures or bases for apparatus, e.g. frames
    • 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
    • B29C48/266—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated
    • B29C48/2665—Means for allowing relative movements between the apparatus parts, e.g. for twisting the extruded article or for moving the die along a surface to be coated allowing small relative movement, e.g. adjustments for aligning the apparatus parts or for compensating for thermal expansion
    • 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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
    • 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
    • B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
    • B29C48/37—Gear pumps
    • 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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • 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
    • 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
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6912—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a single rectilinearly reciprocating slide
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/834—Cooling
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/387—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a gear pump
    • 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
    • B29C48/40—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 using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—PS, i.e. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/001—Tubular films, sleeves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Molding Of Porous Articles (AREA)
IT22972/84A 1983-10-05 1984-10-03 Dispositivo per produrre materiali sintetici termoplastici schiumati, come polistirolo, polietilene o similari IT1178554B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3336179A DE3336179C2 (de) 1983-10-05 1983-10-05 Einrichtung zum Herstellen von aufgeschäumten thermoplastischen Kunststoffen

Publications (3)

Publication Number Publication Date
IT8422972A0 true IT8422972A0 (it) 1984-10-03
IT8422972A1 IT8422972A1 (it) 1986-04-03
IT1178554B IT1178554B (it) 1987-09-09

Family

ID=6211032

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22972/84A IT1178554B (it) 1983-10-05 1984-10-03 Dispositivo per produrre materiali sintetici termoplastici schiumati, come polistirolo, polietilene o similari

Country Status (6)

Country Link
US (1) US4615664A (it)
JP (1) JPS6097822A (it)
CA (1) CA1224309A (it)
DE (1) DE3336179C2 (it)
GB (1) GB2148781B (it)
IT (1) IT1178554B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4750841A (en) * 1987-08-27 1988-06-14 Graham Engineering Corp. Barrel support
CA2006361A1 (en) * 1988-12-27 1990-06-27 Jean G. Korb Method and apparatus for preparing thermoplastic foam
DE4039943A1 (de) * 1990-12-14 1992-06-17 Berstorff Gmbh Masch Hermann Verfahren und vorrichtung zur einstufigen, kontinuierlichen herstellung einer kautschaukgrund- und fertigmischung fuer fahrzeugreifen, antriebsriemen, transportbaender sowie fuer technische gummiartikel in nur einer mischvorrichtung
JP2966735B2 (ja) * 1994-07-29 1999-10-25 積水化成品工業株式会社 熱可塑性樹脂押出機
DE19539203A1 (de) * 1995-10-21 1997-04-24 Gefinex Jackon Gmbh Extruder für Kunststoffe
DE19803362A1 (de) * 1998-01-29 1999-08-05 Sartorius Gmbh Geschäumte poröse Membranen aus thermoplastischen Polymeren sowie Verfahren und Vorrichtung zu ihrer Herstellung
US6206558B1 (en) * 1998-03-27 2001-03-27 Sencorp Systems, Inc. Extrusion system
US5972267A (en) * 1998-03-30 1999-10-26 Union Carbide Chemicals & Plastics Technology Corporation Process for the production of a thermosetting composition
JP4377978B2 (ja) * 1998-11-17 2009-12-02 住友化学株式会社 組成物の製造方法
EP1481786A1 (de) * 2003-05-28 2004-12-01 Coperion Werner & Pfleiderer GmbH & Co. KG Anlage zum Aufbereiten von Stoffen
EP1481785A1 (de) * 2003-05-28 2004-12-01 Coperion Werner & Pfleiderer GmbH & Co. KG Anlage zum Aufbereiten von Stoffen
DE102004040186B3 (de) * 2004-08-19 2006-04-27 Leistritz Extrusionstechnik Gmbh Einrichtung zum Wechseln eines Extrusionszylinders eines Extruders
DE102005012337B3 (de) * 2005-03-17 2006-03-16 Mannesmann Plastics Machinery Gmbh Antriebssystem für eine Plastifiziereinheit einer Spritzgießmaschine
US8137092B2 (en) * 2008-05-22 2012-03-20 Edward Williams Support assembly for an extruder
DE102008061327A1 (de) * 2008-12-11 2010-06-17 Vmi - Az Extrusion Gmbh Extruderanordnung
US10350810B2 (en) * 2014-10-13 2019-07-16 Processing Technologies International, LLC Barrel assembly and method of setting up an extrusion system utilizing the barrel assembly
US20190054676A1 (en) * 2017-08-16 2019-02-21 Promix Solutions Ag Method for the manufacture of a tube
EP3453514A1 (de) 2017-09-12 2019-03-13 Next Generation Analytics GmbH Vorrichtung und verfahren zum filtern und entgasen einer kunststoffschmelze
JP6973009B2 (ja) * 2017-12-13 2021-11-24 トヨタ自動車株式会社 撹拌機構及び撹拌機構の製造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1135652B (de) * 1950-06-29 1962-08-30 Dow Chemical Co Ununterbrochenes Verfahren zum Herstellen eines thermoplastischen Zellkoerpers
US3112525A (en) * 1961-09-20 1963-12-03 Monsanto Chemicals Apparatus for extruding thermoplastic material
US3374300A (en) * 1963-10-12 1968-03-19 Azuma Kimikazu Process and apparatus for the continuous production of polystyrenic foam materials
US3827841A (en) * 1969-06-24 1974-08-06 Sekisui Chemical Co Ltd Extrusion apparatus for use in the production of thermoplastic resin foams
GB1340219A (en) * 1970-08-01 1973-12-12 Scheer & Cie C F Devices for plasticising and extruding plastics material
BE788327A (fr) * 1971-09-02 1973-01-02 Wittrock Ludwig Procede et dispositif pour l'obtention de matieres premieres thermoplastiques ou produits analogues
DE2252996A1 (de) * 1972-10-28 1974-05-09 Dierks & Soehne Maschine zum kontinuierlichen mischen und aufbereiten von pulverigen, koernigen oder kleinstueckigen massen
JPS6054851B2 (ja) * 1979-10-23 1985-12-02 住友電気工業株式会社 発泡体押出装置
DE3013038C2 (de) * 1980-04-03 1983-02-03 Werner & Pfleiderer, 7000 Stuttgart Siebwechselvorrichtung für Extruder
DE3036397A1 (de) * 1980-09-26 1982-05-13 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Einrichtung zum aufbereiten von pulverfoermigen kautschukmischungen
DE3038306C2 (de) * 1980-10-10 1984-03-22 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Strangpreßvorrichtung zur Herstellung von geschäumtem, thermoplastischem Kunststoff
FR2497145A1 (fr) * 1980-12-29 1982-07-02 Pirelli Treficable Procede et appareillage pour l'extrusion en continu de produits filtres au travers de filtres fins
DE3309505C1 (de) * 1983-03-17 1984-06-14 Werner & Pfleiderer, 7000 Stuttgart Kassettenfilter für schmelzflüssige Kunststoffe

Also Published As

Publication number Publication date
GB2148781A (en) 1985-06-05
GB8423268D0 (en) 1984-10-17
JPS6097822A (ja) 1985-05-31
IT1178554B (it) 1987-09-09
CA1224309A (en) 1987-07-21
DE3336179A1 (de) 1985-04-18
IT8422972A1 (it) 1986-04-03
US4615664A (en) 1986-10-07
GB2148781B (en) 1987-07-01
DE3336179C2 (de) 1986-11-20

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