CH538929A - Process for the production of molded parts from several plastics on injection molding machines - Google Patents

Process for the production of molded parts from several plastics on injection molding machines

Info

Publication number
CH538929A
CH538929A CH1721272A CH1721272A CH538929A CH 538929 A CH538929 A CH 538929A CH 1721272 A CH1721272 A CH 1721272A CH 1721272 A CH1721272 A CH 1721272A CH 538929 A CH538929 A CH 538929A
Authority
CH
Switzerland
Prior art keywords
production
injection molding
molded parts
molding machines
several plastics
Prior art date
Application number
CH1721272A
Other languages
German (de)
Inventor
Huenten Werner
Original Assignee
Demag Kuntststofftechnik Gmbh
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 Demag Kuntststofftechnik Gmbh filed Critical Demag Kuntststofftechnik Gmbh
Publication of CH538929A publication Critical patent/CH538929A/en

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
CH1721272A 1971-11-29 1972-11-27 Process for the production of molded parts from several plastics on injection molding machines CH538929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712159089 DE2159089A1 (en) 1971-11-29 1971-11-29 PROCESS FOR PRODUCING MOLDED PARTS FROM MULTIPLE PLASTICS ON INJECTION MOLDING MACHINES

Publications (1)

Publication Number Publication Date
CH538929A true CH538929A (en) 1973-07-15

Family

ID=5826453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1721272A CH538929A (en) 1971-11-29 1972-11-27 Process for the production of molded parts from several plastics on injection molding machines

Country Status (9)

Country Link
JP (1) JPS4864143A (en)
AT (1) AT325843B (en)
BR (1) BR7208215D0 (en)
CH (1) CH538929A (en)
DE (1) DE2159089A1 (en)
FR (1) FR2162014B1 (en)
GB (1) GB1418034A (en)
IT (1) IT972265B (en)
NL (1) NL7216169A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735099A1 (en) * 1987-10-16 1989-04-27 Battenfeld Gmbh METHOD AND DEVICE FOR PRODUCING MULTILAYER MOLDED PARTS

Also Published As

Publication number Publication date
JPS4864143A (en) 1973-09-05
GB1418034A (en) 1975-12-17
NL7216169A (en) 1973-06-01
ATA965472A (en) 1975-01-15
FR2162014A1 (en) 1973-07-13
IT972265B (en) 1974-05-20
BR7208215D0 (en) 1973-08-30
FR2162014B1 (en) 1975-05-30
AT325843B (en) 1975-11-10
DE2159089A1 (en) 1973-05-30

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Legal Events

Date Code Title Description
PL Patent ceased