GB1184688A - Extrusion of Plastics Material. - Google Patents

Extrusion of Plastics Material.

Info

Publication number
GB1184688A
GB1184688A GB40453/67A GB4045367A GB1184688A GB 1184688 A GB1184688 A GB 1184688A GB 40453/67 A GB40453/67 A GB 40453/67A GB 4045367 A GB4045367 A GB 4045367A GB 1184688 A GB1184688 A GB 1184688A
Authority
GB
United Kingdom
Prior art keywords
extrudate
plastics
die
mandrel
section
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
GB40453/67A
Inventor
Pierre Emile Boutillier
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.)
Ugine Kuhlmann SA
Original Assignee
Ugine Kuhlmann SA
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
Priority claimed from FR75594A external-priority patent/FR1498620A/en
Priority claimed from FR97233A external-priority patent/FR1545573A/en
Application filed by Ugine Kuhlmann SA filed Critical Ugine Kuhlmann SA
Publication of GB1184688A publication Critical patent/GB1184688A/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
    • B29C44/34—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
    • 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
    • B29C44/505—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 a flat 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
    • 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
    • B29C48/25—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
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Fats And Perfumes (AREA)

Abstract

1,184,688. Extruding foamed plastics. UGINE KUHLMANN. 5 Sept., 1967 [7 Sept., 1966; 2 March, 1967], No. 40453/67. Heading B5A. [Also in Divisions C3 and F2] A hollow extrudate of foamable plastics is extruded from an extrusion head 4, Fig. 12, comprising a mandrel 5 into a temperaturecontrolled sizing die 7 where expansion of the plastics takes place inwardly of the extrudate to fill or decrease in volume cavity 15b. The nature of the final product, i.e. whether hollow or solid, depends on various parameters, chief amongst which is the draw-off speed of caterpillars 80. Sizing die 7 may be electrically heated, or as shown, have fluid-flow chambers 9; the temperature of the die in any event is maintained below the gelling point of the plastics and a smooth non-cellular skin 13 is formed on the extrudate. Suction may be applied to the extrudate via apertures in the sizing die, see Fig. 5 (not reproduced), and also to the cavity in the extrudate via a conduit in the die head mandrel, see Fig. 4 (not reproduced). In the embodiment of Fig. 12, the draw-off speed of caterpillars 80 is varied to produce a product having alternate hollow and solid portions. Hollow bricks may be formed by cutting into lengths such a product when of rectangular cross-section. In the embodiment of Fig. 6, a tube having a bore of constant cross-section is obtained by using an extrusion head having two mandrels 44b, 45 and a sizing die 47 having a single mandrel 47b, the separate layers of plastics formed by mandrel 45 expanding in die 47 to fill the cavity therebetween. Other embodiments describe the formation of a product of T-cross-section, Figs. 4 and 5 (not shown), and of rectangular or biconcave cross-section, Figs. 9-11 (not shown). Inward expansion of the extrudate may be on to a solid core, e.g. an electrical conductor. Plastics specifically mentioned are polystyrene, styrene acrylonitrile copolymers, acrylonitrile-butadiene styrene copolymers, PVC and mixtures of PVC with acrylonitrile butadiene styrene, polymethylmethacrylate, polyamides, polyethylene, polypropylene, polycarbonate, cellulose propionate and polyurethane. Twenty one examples are given and these include descriptions of the production of longitudinally ribbed rods and rods where such ribbing has been smoothed to give the surface a fibrous appearance.
GB40453/67A 1966-09-07 1967-09-05 Extrusion of Plastics Material. Expired GB1184688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR75594A FR1498620A (en) 1966-09-07 1966-09-07 Method and device for the extrusion of expandable plastics
FR97233A FR1545573A (en) 1967-03-02 1967-03-02 Process for the extrusion of expandable plastics into alternately solid and hollow profiles

Publications (1)

Publication Number Publication Date
GB1184688A true GB1184688A (en) 1970-03-18

Family

ID=26172994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40453/67A Expired GB1184688A (en) 1966-09-07 1967-09-05 Extrusion of Plastics Material.

Country Status (17)

Country Link
AT (1) AT302628B (en)
BE (1) BE703543A (en)
CH (1) CH491736A (en)
CS (1) CS172855B2 (en)
DE (1) DE1729076B2 (en)
DK (2) DK126094C (en)
ES (2) ES344780A1 (en)
FI (1) FI48811C (en)
GB (1) GB1184688A (en)
GR (1) GR34464B (en)
IL (1) IL28605A (en)
NL (1) NL145493C (en)
NO (1) NO132418C (en)
OA (1) OA02666A (en)
PL (1) PL69613B1 (en)
SE (1) SE342766B (en)
SU (1) SU510141A3 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026554A1 (en) * 1979-09-21 1981-04-08 Teijin Limited Process for producing foamed articles of an aromatic polyester
GB2190325A (en) * 1986-05-13 1987-11-18 Reifenhaeuser Masch Extrusion tool for synthetic thermoplastic material
US4732718A (en) * 1985-04-23 1988-03-22 Atochem Process for extrusion of expandable plastic materials
US5912277A (en) * 1997-04-10 1999-06-15 Detterman; Robert Edwin Medium density chlorinated polyvinyl chloride foam and process for preparing
US6348512B1 (en) 1995-12-29 2002-02-19 Pmd Holdings Corp. Medium density chlorinated polyvinyl chloride foam and process for preparing
CN102656108A (en) * 2009-10-13 2012-09-05 古瑞特（英国）有限公司 Production of extruded foam
CN112976461A (en) * 2021-02-19 2021-06-18 南京航天波平电子科技有限公司 Method and equipment for improving oxygen index of thermoplastic resin foam pyramid wave-absorbing material
CN114073900A (en) * 2020-08-13 2022-02-22 中国科学院青岛生物能源与过程研究所 Method for preparing hollow fiber membrane with one sealed end
CN115125674A (en) * 2022-07-22 2022-09-30 广东鑫球新材料科技有限公司 Internal inserting type hollow cotton die and forming method
CN114073900B (en) * 2020-08-13 2024-07-30 中国科学院青岛生物能源与过程研究所 Method for preparing hollow fiber membrane with one sealed end

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789774A (en) * 1972-02-18 1973-02-01 Sinclair Koppers Co PROCESS AND APPARATUS FOR THE MANUFACTURE OF FOAM PROFILES
GB1542585A (en) * 1976-06-22 1979-03-21 Sumitomo Chemical Co Method of extrusion coating with polyolefin foam
DE2844006C2 (en) * 1978-10-09 1981-11-26 Hocoplast Gmbh & Co Kg Kunststofferzeugnisse, 8330 Eggenfelden Process for extruding plastic profiles
EP0035467A1 (en) * 1980-03-04 1981-09-09 Schweizerische Aluminium Ag Process for producing foamed plastic boards
IT1141633B (en) * 1980-11-05 1986-10-01 Lavorazione Mat Plast PROCEDURE FOR THE PRODUCTION OF A CONTINUOUS SHEET OF SYNTHETIC THERMOPLASTIC POLYMER FOAM BY EXTRUSION
DE3113810A1 (en) * 1981-04-06 1982-10-21 Gebrüder Kömmerling Kunststoffwerke GmbH, 6780 Pirmasens Plastic profile bar
EP0119215A1 (en) * 1982-09-01 1984-09-26 BRONNUM, Thomas A method and an apparatus for manufacturing oblong articles of polyurethane integral foam or a corresponding material
DE3401438C2 (en) * 1984-01-17 1996-10-17 Koemmerling Kunststoff Process for producing an integral foam body
DE3530309A1 (en) * 1985-08-24 1987-02-26 Held Kurt METHOD AND DEVICE FOR CONTINUOUSLY PRODUCING THERMOPLASTIC PLASTIC RAILS
DD246727A1 (en) * 1986-03-24 1987-06-17 Bauakademie Ddr CONDITIONING DEVICE FOR PREPARING THERMOPLASTIC SYNTHESES
DE4204759C1 (en) * 1992-02-18 1992-12-03 Friedrich Theysohn Gmbh, 3012 Langenhagen, De
DE4433778C1 (en) * 1993-10-19 1995-07-20 Dahm Reinhard Process for the production of composites from single bodies from filling phases stored in a framework phase
DE4432111C2 (en) * 1994-08-11 2002-10-10 Gefinex Jackon Gmbh Process for the production of a plastic foam
CA2750730C (en) * 2009-03-04 2017-03-07 Dow Global Technologies Llc Extruded polymer foam process with staged forming
DE102014104112A1 (en) * 2014-03-25 2015-10-01 G.S. Georg Stemeseder Gmbh Profiled element made of a wood fiber reinforced plastic, hereby provided composite profile, window assembly formed therefrom and method for producing such a profile element

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026554A1 (en) * 1979-09-21 1981-04-08 Teijin Limited Process for producing foamed articles of an aromatic polyester
US4732718A (en) * 1985-04-23 1988-03-22 Atochem Process for extrusion of expandable plastic materials
GB2190325A (en) * 1986-05-13 1987-11-18 Reifenhaeuser Masch Extrusion tool for synthetic thermoplastic material
GB2190325B (en) * 1986-05-13 1990-02-28 Reifenhaeuser Masch Extrusion tool for foamed synthetic thermoplastic materials
US6348512B1 (en) 1995-12-29 2002-02-19 Pmd Holdings Corp. Medium density chlorinated polyvinyl chloride foam and process for preparing
US5912277A (en) * 1997-04-10 1999-06-15 Detterman; Robert Edwin Medium density chlorinated polyvinyl chloride foam and process for preparing
CN102656108A (en) * 2009-10-13 2012-09-05 古瑞特（英国）有限公司 Production of extruded foam
CN102656108B (en) * 2009-10-13 2015-05-13 古瑞特（英国）有限公司 Production of extruded foam
CN114073900A (en) * 2020-08-13 2022-02-22 中国科学院青岛生物能源与过程研究所 Method for preparing hollow fiber membrane with one sealed end
CN114073900B (en) * 2020-08-13 2024-07-30 中国科学院青岛生物能源与过程研究所 Method for preparing hollow fiber membrane with one sealed end
CN112976461A (en) * 2021-02-19 2021-06-18 南京航天波平电子科技有限公司 Method and equipment for improving oxygen index of thermoplastic resin foam pyramid wave-absorbing material
CN115125674A (en) * 2022-07-22 2022-09-30 广东鑫球新材料科技有限公司 Internal inserting type hollow cotton die and forming method
CN115125674B (en) * 2022-07-22 2023-08-29 广东鑫球新材料科技有限公司 Internal inserting hollow cotton mold and molding method

Also Published As

Publication number Publication date
DE1729076A1 (en) 1972-02-24
AT302628B (en) 1972-10-25
ES344780A1 (en) 1969-01-16
DK126094B (en) 1973-06-12
SU510141A3 (en) 1976-04-05
NL145493C (en) 1980-08-15
NO132418B (en) 1975-08-04
CS172855B2 (en) 1977-01-28
DE1729076B2 (en) 1973-10-04
OA02666A (en) 1970-12-15
FI48811B (en) 1974-09-30
NL145493B (en) 1975-04-15
NO132418C (en) 1975-11-12
DK126094C (en) 1983-04-18
SE342766B (en) 1972-02-21
GR34464B (en) 1968-05-11
FI48811C (en) 1975-01-10
BE703543A (en) 1968-03-06
DK126094A (en) 1900-01-01
CH491736A (en) 1970-06-15
ES344784A1 (en) 1969-01-16
IL28605A (en) 1971-01-28
PL69613B1 (en) 1973-06-30
NL6712119A (en) 1968-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years