JPS5019140B1 - - Google Patents

Info

Publication number
JPS5019140B1
JPS5019140B1 JP45080594A JP8059470A JPS5019140B1 JP S5019140 B1 JPS5019140 B1 JP S5019140B1 JP 45080594 A JP45080594 A JP 45080594A JP 8059470 A JP8059470 A JP 8059470A JP S5019140 B1 JPS5019140 B1 JP S5019140B1
Authority
JP
Japan
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.)
Pending
Application number
JP45080594A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS5019140B1 publication Critical patent/JPS5019140B1/ja
Pending 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
    • B29C44/0461—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
    • 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
    • B29C44/08—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 using several expanding or moulding steps
    • B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
    • B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP45080594A 1969-09-15 1970-09-16 Pending JPS5019140B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4529569A GB1281723A (en) 1969-09-15 1969-09-15 Injection moulding of laminar articles

Publications (1)

Publication Number Publication Date
JPS5019140B1 true JPS5019140B1 (enrdf_load_stackoverflow) 1975-07-04

Family

ID=10436664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45080594A Pending JPS5019140B1 (enrdf_load_stackoverflow) 1969-09-15 1970-09-16

Country Status (6)

Country Link
JP (1) JPS5019140B1 (enrdf_load_stackoverflow)
BE (1) BE756186A (enrdf_load_stackoverflow)
DE (1) DE2045362B2 (enrdf_load_stackoverflow)
FR (1) FR2061375A5 (enrdf_load_stackoverflow)
GB (1) GB1281723A (enrdf_load_stackoverflow)
NL (1) NL7013391A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434943U (enrdf_load_stackoverflow) * 1977-07-14 1979-03-07

Families Citing this family (4)

* 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
FR2530181A1 (fr) * 1982-07-16 1984-01-20 Essilor Int Procede et dispositif pour le moulage d'un element optique en matiere synthetique
US4438062A (en) 1983-04-14 1984-03-20 The General Tire & Rubber Company In-mold coating method
ATE180433T1 (de) * 1993-11-05 1999-06-15 Battenfeld Gmbh Verfahren und vorrichtung zum spritzgiessen von mehrschichtigen gegenständen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434943U (enrdf_load_stackoverflow) * 1977-07-14 1979-03-07

Also Published As

Publication number Publication date
DE2045362B2 (de) 1974-01-17
BE756186A (fr) 1971-03-15
NL7013391A (enrdf_load_stackoverflow) 1971-03-17
DE2045362A1 (de) 1971-03-25
FR2061375A5 (enrdf_load_stackoverflow) 1971-06-18
GB1281723A (en) 1972-07-12

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