GB2237237A - Improvements in or relating to methods and apparatus for the continuous formation of an extruded product - Google Patents

Improvements in or relating to methods and apparatus for the continuous formation of an extruded product

Info

Publication number
GB2237237A
GB2237237A GB9020422A GB9020422A GB2237237A GB 2237237 A GB2237237 A GB 2237237A GB 9020422 A GB9020422 A GB 9020422A GB 9020422 A GB9020422 A GB 9020422A GB 2237237 A GB2237237 A GB 2237237A
Authority
GB
United Kingdom
Prior art keywords
displacements
pct
orientation
product
extruded product
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
GB9020422A
Other versions
GB9020422D0 (en
GB2237237B (en
Inventor
Peter Stewart Allen
Michael John Bevis
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB9020422D0 publication Critical patent/GB9020422D0/en
Publication of GB2237237A publication Critical patent/GB2237237A/en
Application granted granted Critical
Publication of GB2237237B publication Critical patent/GB2237237B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of 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
    • B29C48/03—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
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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
    • B29C48/388—Plasticisers, homogenisers or feeders comprising two or more stages using a screw extruder and a ram or piston
    • 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
    • B29C48/397—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 a single screw
    • 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
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B29C48/48—Two or more rams or pistons
    • 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
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • 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
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Abstract

PCT No. PCT/GB90/00025 Sec. 371 Date Aug. 31, 1990 Sec. 102(e) Date Aug. 31, 1990 PCT Filed Jan. 9, 1990 PCT Pub. No. WO90/08024 PCT Pub. Date Jul. 26, 1990.In a method and apparatus for formation of an extruded product from material containing fibrous, molecules or other constituents succeptable to alignment, while the extrudate is still molten and moving through the die (5), in the direction of the extrusion axis (11), it is subjected to pulsating displacements in a direction transverse relative to that axis. These displacements give rise to a shearing action within the material, resulting in a degree of transverse orientation of the constituents. This orientation may be "locked in" to the extruded product when the melt solidifies (40), so improving the transverse strength of that product, and/or may correct an unwanted orientation (from 112, FIG. 16) that existed in the melt upstream of the point where the pulsating displacements were applied. The displacements may be applied by the synchronized operation of pistons (20-27), operating in chambers (17) which open into the die cavity (18) at separated locations all lying in the same transverse plane. The extrusion of products of rectangular, tubular and other sections is described, as are various methods (8a, 8b, 9, 10, 37) of applying forced cooling to the die to accelerate the solidification of the molten product.
GB9020422A 1989-01-10 1990-09-19 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product Expired - Lifetime GB2237237B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898900434A GB8900434D0 (en) 1989-01-10 1989-01-10 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product
PCT/GB1990/000025 WO1990008024A1 (en) 1989-01-10 1990-01-09 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product

Publications (3)

Publication Number Publication Date
GB9020422D0 GB9020422D0 (en) 1990-11-14
GB2237237A true GB2237237A (en) 1991-05-01
GB2237237B GB2237237B (en) 1992-09-30

Family

ID=10649803

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898900434A Pending GB8900434D0 (en) 1989-01-10 1989-01-10 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product
GB9020422A Expired - Lifetime GB2237237B (en) 1989-01-10 1990-09-19 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898900434A Pending GB8900434D0 (en) 1989-01-10 1989-01-10 Improvements in or relating to methods and apparatus for the continuous formation of an extruded product

Country Status (11)

Country Link
US (1) US5132549A (en)
EP (1) EP0403637B1 (en)
JP (1) JPH0679826B2 (en)
AT (1) ATE81055T1 (en)
AU (1) AU626370B2 (en)
CA (1) CA2007349C (en)
DE (1) DE69000354T2 (en)
DK (1) DK0403637T3 (en)
GB (2) GB8900434D0 (en)
HK (1) HK16894A (en)
WO (1) WO1990008024A1 (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002214A1 (en) * 1990-01-26 1991-08-01 Wilfried Ensinger METHOD AND DEVICE FOR THE ENDLESS PRODUCTION OF PANELS FROM A WARM, PLASTIC PLASTIC MOLD
US5648104A (en) * 1991-01-17 1997-07-15 The University Of Manchester Institute Of Science And Technology Extrusion die
ES2116454T3 (en) * 1992-06-08 1998-07-16 British Tech Group IMPROVEMENTS IN OR RELATED TO THE PROCEDURES AND APPARATUS FOR THE CONTINUOUS FORMATION OF AN EXTRUDED PRODUCT.
WO1995011122A1 (en) * 1993-10-18 1995-04-27 Thermold Partners L.P. Method and apparatus for injection molding
TW454922U (en) * 1994-03-23 2001-09-11 Tosoh Corp Rear side irradiation light
WO1995027360A1 (en) 1994-03-31 1995-10-12 Citibank, N.A. Interactive voice response system
US5538413A (en) * 1994-04-29 1996-07-23 University Of Massachusetts Lowell Apparatus for strengthening weld lines in molded parts
JPH10502308A (en) * 1994-07-08 1998-03-03 ベー・テー・ベー・ベートン・アクティーゼルスカブ Method and apparatus for extruding granular material
US5770131A (en) * 1996-01-02 1998-06-23 Thermold Partners, L.P. Method and apparatus for applying an oscillating force on a molten material
US5772948A (en) * 1996-11-19 1998-06-30 Plastaflex Corporation Melt-blown fiber system with pivotal oscillating member and corresponding method
US5885495A (en) * 1996-12-19 1999-03-23 Ibar; Jean-Pierre Viscosity control for molten plastics prior to molding
JP2001073933A (en) 1999-09-01 2001-03-21 Bridgestone Corp Positive-displacement extruding machine and extruding method for viscous material
WO2001017747A1 (en) * 1999-09-07 2001-03-15 The Goodyear Tire & Rubber Company Orientation of short fibers in a continuous process
US20080150195A1 (en) * 2006-12-21 2008-06-26 Motorola, Inc. Multi-live feed injection molding
US8356373B2 (en) * 2009-03-06 2013-01-22 Noel Group Llc Unitary composite/hybrid cushioning structure(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material(s)
US20130081209A1 (en) 2011-09-30 2013-04-04 Nomaco Inc. Cellular mattress assemblies and related methods
USD694553S1 (en) 2010-03-03 2013-12-03 Noel Group Llc Mattress bed cushion
USD688492S1 (en) 2010-03-03 2013-08-27 Noel Group Llc Mattress bed cushion
USD693145S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693148S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693144S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
EP2436501B1 (en) * 2010-10-04 2014-04-02 Helmut Hiendl Method and device for manufacturing an extruded plastic product
MX2013012272A (en) 2011-04-29 2014-02-17 Nomaco Inc Unitary composite/hybrid cushioning structures(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material (s) and related mothods.
USD691400S1 (en) 2012-02-10 2013-10-15 Nomaco Inc. Stackable base for mattress assembly
USD694552S1 (en) 2012-04-27 2013-12-03 Noel Group Llc Mattress bed cushion
USD693149S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693147S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD692693S1 (en) 2012-04-27 2013-11-05 Noel Group Llc Mattress bed cushion
USD693146S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD697337S1 (en) 2012-07-03 2014-01-14 Nomaco, Inc. Stackable base for mattress assembly
USD690536S1 (en) 2012-07-26 2013-10-01 Nomaco Inc. Motion isolation insulator pad
USD692694S1 (en) 2012-09-28 2013-11-05 Noel Group Llc Mattress bed cushion
USD694041S1 (en) 2012-09-28 2013-11-26 Noel Group Llc Mattress bed cushion
USD688069S1 (en) 2012-09-28 2013-08-20 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
CN103101174B (en) 2013-02-01 2014-12-24 浙江曼瑞德舒适系统有限公司 Plastic pipe coating machine head and plastic pipe coating device including same
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
US10710322B1 (en) * 2015-06-12 2020-07-14 Accredo Packaging, Inc Matte film and method of manufacture therefore

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH429145A (en) * 1966-01-07 1967-01-31 List Heinz Process to improve the material flow of plastic substances in nozzles by means of oscillation
FR1575159A (en) * 1967-07-28 1969-07-18
DD138523A1 (en) * 1978-08-30 1979-11-07 Reinhardt Schulz DEVICE FOR POLYMERSHIP PROCESSING
EP0188120A2 (en) * 1984-12-21 1986-07-23 National Research Development Corporation Moulding process
WO1986007285A1 (en) * 1985-06-04 1986-12-18 The University Of Manchester Institute Of Science Material processing
WO1988004228A1 (en) * 1986-12-06 1988-06-16 Prosyma Research Limited Fibre reinforced polymer compositions and process and apparatus for production thereof
DE3801574A1 (en) * 1988-01-20 1989-08-03 Wilfried Ensinger Process and apparatus for extruding hot polymer melts

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB726911A (en) * 1951-03-13 1955-03-23 Polymer Corp Improvements in or relating to a method and apparatus for making polyamide rod stock
GB852387A (en) * 1957-11-22 1960-10-26 Algemene Kunstzijde Unie Nv Process and apparatus for the continuous manufacture of rods, tubes and the like
NL6717206A (en) * 1966-12-22 1968-06-24
DE2319254B2 (en) * 1973-04-16 1978-05-03 Vereinigte Aluminium-Werke Ag, 5300 Bonn Device for the compression and shaping of charcoal mass
US4056591A (en) * 1973-12-26 1977-11-01 Monsanto Company Process for controlling orientation of discontinuous fiber in a fiber-reinforced product formed by extrusion
JPS526761A (en) * 1975-07-04 1977-01-19 Ube Industries Method and die for extruding solid plastic
GB2008023A (en) * 1977-08-24 1979-05-31 Daniels Stroud Ltd Vibrating moulding material during injection or extrusion
EP0049720B1 (en) * 1980-10-09 1986-08-13 National Research Development Corporation Prosthesis comprising composite material
US4925161B1 (en) * 1984-12-21 1994-12-20 British Tech Group Process for molding directionally-orientable material using shear force
GB8432335D0 (en) * 1984-12-21 1985-02-06 Allan P S Injection moulding
FR2608096B1 (en) * 1986-12-15 1993-12-24 Solomat Sa METHOD AND INSTALLATION FOR EXTRUDING A PRODUCT IN THE FORM OF A FILM, PLATE, TUBE, ROD OR WIRE
DE3810954A1 (en) * 1988-03-31 1989-10-19 Kloeckner Ferromatik Desma METHOD AND DEVICE FOR INJECTION MOLDING INJECTION MOLDINGS FROM PLASTICIZABLE MATERIAL, ESPECIALLY FROM PLASTIFIZABLE LIQUID CRYSTAL POLYMERS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH429145A (en) * 1966-01-07 1967-01-31 List Heinz Process to improve the material flow of plastic substances in nozzles by means of oscillation
FR1575159A (en) * 1967-07-28 1969-07-18
DD138523A1 (en) * 1978-08-30 1979-11-07 Reinhardt Schulz DEVICE FOR POLYMERSHIP PROCESSING
EP0188120A2 (en) * 1984-12-21 1986-07-23 National Research Development Corporation Moulding process
WO1986007285A1 (en) * 1985-06-04 1986-12-18 The University Of Manchester Institute Of Science Material processing
WO1988004228A1 (en) * 1986-12-06 1988-06-16 Prosyma Research Limited Fibre reinforced polymer compositions and process and apparatus for production thereof
DE3801574A1 (en) * 1988-01-20 1989-08-03 Wilfried Ensinger Process and apparatus for extruding hot polymer melts

Also Published As

Publication number Publication date
AU626370B2 (en) 1992-07-30
ATE81055T1 (en) 1992-10-15
DE69000354T2 (en) 1993-05-06
EP0403637A1 (en) 1990-12-27
GB9020422D0 (en) 1990-11-14
HK16894A (en) 1994-03-11
EP0403637B1 (en) 1992-09-30
US5132549A (en) 1992-07-21
GB8900434D0 (en) 1989-03-08
CA2007349A1 (en) 1990-07-10
GB2237237B (en) 1992-09-30
CA2007349C (en) 1994-03-29
DK0403637T3 (en) 1992-11-02
WO1990008024A1 (en) 1990-07-26
DE69000354D1 (en) 1992-11-05
JPH03500400A (en) 1991-01-31
AU4824990A (en) 1990-08-13
JPH0679826B2 (en) 1994-10-12

Similar Documents

Publication Publication Date Title
GB2237237B (en) Improvements in or relating to methods and apparatus for the continuous formation of an extruded product
AU540021B2 (en) Method for making thixotropic materials
ATE123387T1 (en) METHOD AND DEVICE FOR PRODUCING FOOD BY COOKING COEXTRUSION.
FR2620804B1 (en) METHOD FOR THE CONTINUOUS COOLING OF AN EXTRUDED PRODUCT AND INSTALLATION FOR ITS IMPLEMENTATION
BR9000761A (en) EXTRUSION APPLIANCE
ES2116454T3 (en) IMPROVEMENTS IN OR RELATED TO THE PROCEDURES AND APPARATUS FOR THE CONTINUOUS FORMATION OF AN EXTRUDED PRODUCT.
DK0600061T3 (en) Process for the preparation of moldings from pasty foods
ATE149894T1 (en) METHOD AND DEVICE FOR PRODUCING COMPONENTS
FR2511931B1 (en) PROCESS FOR EXTRUDING THERMOPLASTIC COMPOSITIONS, ESPECIALLY FOAMS, COMPRISING A COOLING STAGE BETWEEN THE PLASTICIZATION AND PASSAGE STEPS AND APPARATUS FOR CARRYING OUT THE PROCESS
CA2100988A1 (en) Process and apparatus for producing stabilized molded material for waste products
GB2055315A (en) Die casting method
AU7085587A (en) A method and an apparatus for the production of ribbed pipes
EP0852165A3 (en) Method and apparatus for producing of coated continuous casting products
DK546885A (en) PROCEDURE FOR FORMATION
DE69015809T2 (en) METHOD FOR PRODUCING A RECONSTITUTED MEAT PRODUCT.
NO895290D0 (en) PROCEDURE AND DEVICE FOR CASTING OF CONCRETE PRODUCTS
SU1811095A1 (en) Apparatus for reverse hydromechanical extrusion of hollow products
JPS57169323A (en) Manufacturing method and apparatus of rack gear

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090109