CA1092311A - Extrusion of cellular thermoplastic material - Google Patents

Extrusion of cellular thermoplastic material

Info

Publication number
CA1092311A
CA1092311A CA260,150A CA260150A CA1092311A CA 1092311 A CA1092311 A CA 1092311A CA 260150 A CA260150 A CA 260150A CA 1092311 A CA1092311 A CA 1092311A
Authority
CA
Canada
Prior art keywords
extruder
barrel
blowing agent
land
mixer head
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.)
Expired
Application number
CA260,150A
Other languages
English (en)
French (fr)
Inventor
John C. Miller
Archibald L. Burnett
Leonard S. Scarola
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of CA1092311A publication Critical patent/CA1092311A/en
Expired 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/51—Screws with internal flow passages, e.g. for molten material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
CA260,150A 1975-09-04 1976-08-30 Extrusion of cellular thermoplastic material Expired CA1092311A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61024075A 1975-09-04 1975-09-04
US610,240 1975-09-04
US71312176A 1976-08-11 1976-08-11
US713,121 1976-08-11

Publications (1)

Publication Number Publication Date
CA1092311A true CA1092311A (en) 1980-12-30

Family

ID=27086218

Family Applications (1)

Application Number Title Priority Date Filing Date
CA260,150A Expired CA1092311A (en) 1975-09-04 1976-08-30 Extrusion of cellular thermoplastic material

Country Status (5)

Country Link
JP (1) JPS5237974A (pt)
CA (1) CA1092311A (pt)
DE (1) DE2639814C2 (pt)
FR (1) FR2322719A1 (pt)
GB (1) GB1564410A (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3100665A1 (de) * 1981-01-12 1982-08-26 Spiritini, Cuno Geschaeumtes niederdruck-polyethylen, verfahren zur herstellung desselben, sowie dessen verwendung
US4461734A (en) * 1982-09-13 1984-07-24 Union Carbide Corporation Process for plasticization and pumping of low bulk density plastics
JPS59158773U (ja) * 1983-04-12 1984-10-24 佐藤　幸雄 バルブ自動制御装置
EP1935611B1 (de) * 2006-12-22 2009-04-01 Coperion GmbH Extruderspitze für hochviskose Stoffe
US7648357B2 (en) 2006-11-23 2010-01-19 Coperion Gmbh Extruder
CN107962754A (zh) * 2017-12-15 2018-04-27 浙江中盛新材料股份有限公司 单螺杆挤出加充气制备发泡聚合物的设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL142442B (nl) * 1964-03-31 1974-06-17 Shell Int Research Werkwijze voor de vervaardiging van voorwerpen van polymeerschuim.
US3287477A (en) * 1964-11-12 1966-11-22 Koppers Co Inc Process and apparatus for extruding a foamed plastic
BE754657Q (fr) * 1965-11-29 1971-01-18 Kenics Corp Appareil melangeur
GB1328362A (en) * 1970-10-19 1973-08-30 Ici Ltd Dispersion of materials in thermoplastics
US3711067A (en) * 1971-01-08 1973-01-16 Midland Ross Corp Extruding and mixing equipment
DE2108936C3 (de) * 1971-02-25 1979-12-13 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren und Vorrichtung zum Herstellen von Kunststoffhalbzeug mit Schaumstoffkern und ungeschäumtem Mantel
US3730492A (en) * 1971-06-17 1973-05-01 Union Carbide Corp Mixing of thermoplastic materials
JPS5249504B2 (pt) * 1973-01-17 1977-12-17

Also Published As

Publication number Publication date
JPS5545020B2 (pt) 1980-11-15
DE2639814C2 (de) 1983-08-18
FR2322719B1 (pt) 1981-05-22
DE2639814A1 (de) 1977-03-17
FR2322719A1 (fr) 1977-04-01
JPS5237974A (en) 1977-03-24
GB1564410A (en) 1980-04-10

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Legal Events

Date Code Title Description
MKEX Expiry