AT380656B - PISTON EXTRUSION PROCESS FOR PRODUCING MOLDED BODIES FROM HIGH-MOLECULAR LOW-PRESSURE POLYAETHYLENE - Google Patents

PISTON EXTRUSION PROCESS FOR PRODUCING MOLDED BODIES FROM HIGH-MOLECULAR LOW-PRESSURE POLYAETHYLENE

Info

Publication number
AT380656B
AT380656B AT0445779A AT445779A AT380656B AT 380656 B AT380656 B AT 380656B AT 0445779 A AT0445779 A AT 0445779A AT 445779 A AT445779 A AT 445779A AT 380656 B AT380656 B AT 380656B
Authority
AT
Austria
Prior art keywords
polyaethylene
pressure
extrusion process
molded bodies
producing molded
Prior art date
Application number
AT0445779A
Other languages
German (de)
Other versions
ATA445779A (en
Original Assignee
Ruhrchemie Ag
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 Ruhrchemie Ag filed Critical Ruhrchemie Ag
Publication of ATA445779A publication Critical patent/ATA445779A/en
Application granted granted Critical
Publication of AT380656B publication Critical patent/AT380656B/en

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
    • B29C48/36—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
    • 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
    • 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
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
AT0445779A 1978-07-03 1979-06-26 PISTON EXTRUSION PROCESS FOR PRODUCING MOLDED BODIES FROM HIGH-MOLECULAR LOW-PRESSURE POLYAETHYLENE AT380656B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2829232A DE2829232C2 (en) 1978-07-03 1978-07-03 Process for the production of moldings from high molecular weight low-pressure polyethylene

Publications (2)

Publication Number Publication Date
ATA445779A ATA445779A (en) 1985-11-15
AT380656B true AT380656B (en) 1986-06-25

Family

ID=6043454

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0445779A AT380656B (en) 1978-07-03 1979-06-26 PISTON EXTRUSION PROCESS FOR PRODUCING MOLDED BODIES FROM HIGH-MOLECULAR LOW-PRESSURE POLYAETHYLENE

Country Status (8)

Country Link
AT (1) AT380656B (en)
CH (1) CH642906A5 (en)
DE (1) DE2829232C2 (en)
FR (1) FR2430305A1 (en)
GB (1) GB2024701B (en)
IT (1) IT1162648B (en)
NL (1) NL7808330A (en)
YU (1) YU40223B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212335A1 (en) * 1992-04-13 1993-10-14 Marijan Bradic Versatile high density polyethylene@ flat sheet extruder - has inlet fitted with plunger to pressurise and feed granules through bores and at right angles into main temp. controlled outlet bore

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1210918A (en) * 1983-06-28 1986-09-09 Arakalgud V. Ramamurthy Process for substantially eliminating surface melt fracture when extruding ethylene polymers
DE3401669A1 (en) * 1984-01-19 1985-08-01 Plastik-Maschinenbau Gmbh & Co Kg Entwicklungsgesellschaft, 5489 Kelberg Sliding component in the form of a section from a plastic profile made from polyethylene
DD230826A1 (en) * 1984-03-05 1985-12-11 Univ Dresden Tech METHOD AND EXTRUSION DEVICE FOR FORMING FLOW-PROOF MASSES
DE3418259C2 (en) * 1984-05-17 1986-07-10 Plastik-Maschinenbau Gmbh & Co Kg Entwicklungsgesellschaft, 5489 Kelberg Process and system for the further processing of household waste
DE3828662A1 (en) * 1988-08-24 1990-03-08 Priesemuth W DEVICE FOR PRODUCING PLASTIC REGENERATE
DE9014506U1 (en) * 1990-10-19 1991-01-10 Wk Worek Kunststofftechnik Gmbh, 8555 Adelsdorf, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883631A (en) * 1966-11-25 1975-05-13 Impact Plastics Inc Method and means for making high molecular weight polyethylene sheets
US3483597A (en) * 1966-12-23 1969-12-16 Allied Chem Ram extrusion of granular resins
CA930116A (en) * 1967-02-01 1973-07-17 E. Murray Coyt Reinforced extruder for high molecular weight polyethylene
US3887319A (en) * 1972-12-08 1975-06-03 Polymer Corp Apparatus for the extrusion of ultra high molecular weight polymeric resins
DE2907523C2 (en) * 1979-02-26 1985-01-10 Salem Furnace Co.,, Carnegie, Pa. Method and device for heat treatment of materials on a rotary hearth

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212335A1 (en) * 1992-04-13 1993-10-14 Marijan Bradic Versatile high density polyethylene@ flat sheet extruder - has inlet fitted with plunger to pressurise and feed granules through bores and at right angles into main temp. controlled outlet bore

Also Published As

Publication number Publication date
ATA445779A (en) 1985-11-15
GB2024701B (en) 1982-08-25
FR2430305A1 (en) 1980-02-01
DE2829232C2 (en) 1983-10-20
DE2829232A1 (en) 1980-01-17
IT1162648B (en) 1987-04-01
NL7808330A (en) 1980-01-07
FR2430305B1 (en) 1983-08-12
CH642906A5 (en) 1984-05-15
YU40223B (en) 1985-08-31
IT7949615A0 (en) 1979-07-02
YU149279A (en) 1983-01-21
GB2024701A (en) 1980-01-16

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee