CH501489A - Tête d'extrusion pour la production d'éléments en polyoléfine à structure cellulaire - Google Patents

Tête d'extrusion pour la production d'éléments en polyoléfine à structure cellulaire

Info

Publication number
CH501489A
CH501489A CH1612469A CH1612469A CH501489A CH 501489 A CH501489 A CH 501489A CH 1612469 A CH1612469 A CH 1612469A CH 1612469 A CH1612469 A CH 1612469A CH 501489 A CH501489 A CH 501489A
Authority
CH
Switzerland
Prior art keywords
production
extrusion head
cellular structure
polyolefin elements
polyolefin
Prior art date
Application number
CH1612469A
Other languages
English (en)
French (fr)
Inventor
Lorge Michel
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Publication of CH501489A publication Critical patent/CH501489A/fr

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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CH1612469A 1968-12-04 1969-10-29 Tête d'extrusion pour la production d'éléments en polyoléfine à structure cellulaire CH501489A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE66955A BE724873A (da) 1968-12-04 1968-12-04

Publications (1)

Publication Number Publication Date
CH501489A true CH501489A (fr) 1971-01-15

Family

ID=3841154

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1612469A CH501489A (fr) 1968-12-04 1969-10-29 Tête d'extrusion pour la production d'éléments en polyoléfine à structure cellulaire

Country Status (5)

Country Link
BE (1) BE724873A (da)
CH (1) CH501489A (da)
DE (1) DE6945123U (da)
ES (1) ES373363A1 (da)
FR (1) FR2025164A1 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013108045B9 (de) 2013-07-26 2017-09-21 Windmöller & Hölscher Kg Blasfolien-Extrusionsvorrichtung, Temperaturregelung für eine Blasfolien-Extrusionsvorrichtung und Verfahrenzur Temperaturregelung einer Blasfolien-Extrusionsvorrichtung

Also Published As

Publication number Publication date
BE724873A (da) 1969-06-04
ES373363A1 (es) 1972-01-16
DE6945123U (de) 1970-04-02
FR2025164A1 (en) 1970-09-04

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Legal Events

Date Code Title Description
PL Patent ceased