GB1566946A - Method and apparatus for injection moulding of eypanded plastics articles - Google Patents

Method and apparatus for injection moulding of eypanded plastics articles Download PDF

Info

Publication number
GB1566946A
GB1566946A GB3858077A GB3858077A GB1566946A GB 1566946 A GB1566946 A GB 1566946A GB 3858077 A GB3858077 A GB 3858077A GB 3858077 A GB3858077 A GB 3858077A GB 1566946 A GB1566946 A GB 1566946A
Authority
GB
United Kingdom
Prior art keywords
mould
gas
melt
chamber
mould cavity
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
GB3858077A
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Publication of GB1566946A publication Critical patent/GB1566946A/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
    • B29C44/0415—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 regulating the pressure of the material during or after filling of the mould, e.g. by local venting

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
GB3858077A 1976-09-17 1977-09-15 Method and apparatus for injection moulding of eypanded plastics articles Expired GB1566946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1179476A CH616106A5 (en) 1976-09-17 1976-09-17 Process and device for producing plastic mouldings with a smooth, compact surface and a cellular-porous core by injection moulding

Publications (1)

Publication Number Publication Date
GB1566946A true GB1566946A (en) 1980-05-08

Family

ID=4376929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3858077A Expired GB1566946A (en) 1976-09-17 1977-09-15 Method and apparatus for injection moulding of eypanded plastics articles

Country Status (4)

Country Link
CH (1) CH616106A5 (enExample)
DE (1) DE2737148B2 (enExample)
FR (1) FR2364757A1 (enExample)
GB (1) GB1566946A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1114709A4 (en) * 1998-04-30 2004-06-23 Daisen Industry Co Ltd DEVICE AND METHOD FOR FOAMING $ i (IN SITU) IN INTERNAL DIES IN SYNTHETIC RESIN AND FOAMED PRODUCT $ i (IN SITU) THUS OBTAINED
WO2004054777A1 (de) * 2002-12-14 2004-07-01 Stankiewicz Gmbh Verfahren und vorrichtung zur herstellung geschäumter polyurethan-formkörper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128458A1 (de) * 2001-06-12 2003-02-13 Battenfeld Gmbh Verfahren zur Herstellung eines geschäumten Kunststoffformteils

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268635A (en) * 1963-02-25 1966-08-23 Robert A Kraus Arrangement for forming foam plastic article
DE6933867U (de) * 1969-08-28 1970-06-11 Huels Chemische Werke Ag Spritzgiessform fuer treibmittelhaltige thermoplaste
DE2235994A1 (de) * 1971-10-23 1973-05-03 Ts Lab Stex Verfahren und vorrichtung zum spritzgiessen von polymeren
DE2335310C3 (de) * 1973-07-11 1978-03-16 Asahi Dow Ltd. Verfahren zur Herstellung von Strukturschaumstoffen mit ungeschäumter Außenhaut und glatter und glänzender Oberfläche aus thermoplastischen Kunststoffen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1114709A4 (en) * 1998-04-30 2004-06-23 Daisen Industry Co Ltd DEVICE AND METHOD FOR FOAMING $ i (IN SITU) IN INTERNAL DIES IN SYNTHETIC RESIN AND FOAMED PRODUCT $ i (IN SITU) THUS OBTAINED
WO2004054777A1 (de) * 2002-12-14 2004-07-01 Stankiewicz Gmbh Verfahren und vorrichtung zur herstellung geschäumter polyurethan-formkörper

Also Published As

Publication number Publication date
FR2364757A1 (fr) 1978-04-14
FR2364757B1 (enExample) 1980-05-16
DE2737148B2 (de) 1980-03-27
DE2737148A1 (de) 1978-03-23
CH616106A5 (en) 1980-03-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee