GB1339443A - Production of laminar articles - Google Patents

Production of laminar articles

Info

Publication number
GB1339443A
GB1339443A GB1339443DA GB1339443A GB 1339443 A GB1339443 A GB 1339443A GB 1339443D A GB1339443D A GB 1339443DA GB 1339443 A GB1339443 A GB 1339443A
Authority
GB
United Kingdom
Prior art keywords
channel
injected
skin
core
injection
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
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1339443A publication Critical patent/GB1339443A/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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0492—Devices for feeding the different materials
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0032—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks sequential injection from multiple gates, e.g. to avoid weld lines
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C2045/1651—Independent injection runners or nozzles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
GB1339443D 1970-11-30 1970-11-30 Production of laminar articles Expired GB1339443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5669570 1970-11-30

Publications (1)

Publication Number Publication Date
GB1339443A true GB1339443A (en) 1973-12-05

Family

ID=10477300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1339443D Expired GB1339443A (en) 1970-11-30 1970-11-30 Production of laminar articles

Country Status (4)

Country Link
DE (3) DE2159344A1 (enrdf_load_stackoverflow)
FR (2) FR2115487B1 (enrdf_load_stackoverflow)
GB (1) GB1339443A (enrdf_load_stackoverflow)
IT (2) IT946116B (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2257408B1 (enrdf_load_stackoverflow) * 1973-09-25 1978-01-13 Billion Sa
DE2616309C2 (de) * 1976-04-12 1984-08-02 Helmut Prof. Dr. 4020 Mettmann Käufer Verfahren zum Herstellen von Verbundwerkstoffen
DE3405231A1 (de) * 1983-04-19 1984-10-25 Kork AG Boswil, Boswil Formkoerper, verfahren und vorrichtung zu seiner herstellung sowie verwendung desselben
GB8503695D0 (en) * 1985-02-13 1985-03-13 Bp Chem Int Ltd Sandwich mouldings
DE8903322U1 (de) * 1989-03-17 1989-07-20 Gefinex Gesellschaft für innovative Extrusionsprodukte mbH, 33803 Steinhagen Schaumstoffplatte
DE3913109C5 (de) * 1989-04-21 2010-03-18 Ferromatik Milacron Maschinenbau Gmbh Verfahren zum Spritzgießen fluidgefüllter Kunststoffkörper und Vorrichtung zur Durchführung des Verfahrens
DE19518963C2 (de) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Verfahren und Vorrichtung zum Spritzgießen hohlgeblasener Kunststoffkörper
DE19518964C2 (de) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Verfahren und Vorrichtung zum Spritzgießen hohlgeblasener Kunststoffkörper
FR2763014B1 (fr) * 1997-05-07 2000-07-13 Allibert Ind Procede et dispositif de moulage par injection bi-matiere selective d'une piece en matieres plastiques, et piece realisee avec ce procede
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
DE10233447A1 (de) * 2002-06-05 2004-01-08 Windsor Kunststofftechnologie Gmbh Coinjections-Einheit für Spritzgießmaschinen
US6899843B2 (en) 2003-03-25 2005-05-31 Lear Corporation Plastic injection molding with moveable mold members forming speaker grill
US6890477B2 (en) 2003-03-25 2005-05-10 Lear Corporation Plastic injection molded articles with hollow rib members
DE102005026790B4 (de) * 2005-06-10 2016-06-09 Bayerische Motoren Werke Aktiengesellschaft Spritzgussverfahren zur Herstellung eines flächigen Kunststoffteils
DE102012100422B4 (de) 2012-01-19 2024-01-04 Auria Solutions Uk I Ltd. Vorrichtung und Verfahren zur Herstellung eines Spritzgussbauteils, insbesondere eines Schallisolationsbauteils eines Kraftfahrzeuges
DE202020006061U1 (de) 2020-04-02 2024-08-26 STG Stanztechnik GmbH & Co. KG Kanalsystem zum kontinuierlichen Einspritzen einer plastifizierten Formmasse in ein Formgebungswerkzeug sowie Spritzgussvorrichtung

Also Published As

Publication number Publication date
FR2115487B1 (enrdf_load_stackoverflow) 1974-07-19
FR2115487A1 (enrdf_load_stackoverflow) 1972-07-07
IT961052B (it) 1973-12-10
FR2115488A1 (enrdf_load_stackoverflow) 1972-07-07
FR2115488B1 (enrdf_load_stackoverflow) 1974-07-19
IT946116B (it) 1973-05-21
DE2159345A1 (de) 1972-05-31
DE2159344A1 (de) 1972-05-31
DE2159383A1 (de) 1972-06-08

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees