FR2221267A1 - Thermoplastic products with skin and core - by separately supplying two compositions to single injection block - Google Patents

Thermoplastic products with skin and core - by separately supplying two compositions to single injection block

Info

Publication number
FR2221267A1
FR2221267A1 FR7309087A FR7309087A FR2221267A1 FR 2221267 A1 FR2221267 A1 FR 2221267A1 FR 7309087 A FR7309087 A FR 7309087A FR 7309087 A FR7309087 A FR 7309087A FR 2221267 A1 FR2221267 A1 FR 2221267A1
Authority
FR
France
Prior art keywords
core
skin
single injection
compositions
injection block
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.)
Granted
Application number
FR7309087A
Other languages
English (en)
Other versions
FR2221267B1 (fr
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.)
Rhone Progil SA
Original Assignee
Rhone Progil 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
Application filed by Rhone Progil SA filed Critical Rhone Progil SA
Priority to FR7309087A priority Critical patent/FR2221267A1/fr
Priority to DE19742411808 priority patent/DE2411808A1/de
Priority to LU69623A priority patent/LU69623A1/xx
Priority to BE141929A priority patent/BE812205A/fr
Priority to NL7403291A priority patent/NL7403291A/xx
Priority to JP2895774A priority patent/JPS5046768A/ja
Priority to IT4933174A priority patent/IT1003796B/it
Publication of FR2221267A1 publication Critical patent/FR2221267A1/fr
Application granted granted Critical
Publication of FR2221267B1 publication Critical patent/FR2221267B1/fr
Granted 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
    • 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
    • B29C45/1645—Injecting skin and core materials from the same injection cylinder, e.g. mono-sandwich moulding
    • 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)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
FR7309087A 1973-03-14 1973-03-14 Thermoplastic products with skin and core - by separately supplying two compositions to single injection block Granted FR2221267A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7309087A FR2221267A1 (en) 1973-03-14 1973-03-14 Thermoplastic products with skin and core - by separately supplying two compositions to single injection block
DE19742411808 DE2411808A1 (de) 1973-03-14 1974-03-12 Verfahren und vorrichtung zum spritzgiessen von "sandwich"-artigen produkten
LU69623A LU69623A1 (fr) 1973-03-14 1974-03-12
BE141929A BE812205A (fr) 1973-03-14 1974-03-12 Perfectionnement au procede et aux machines de moulage par injection
NL7403291A NL7403291A (fr) 1973-03-14 1974-03-12
JP2895774A JPS5046768A (fr) 1973-03-14 1974-03-13
IT4933174A IT1003796B (it) 1973-03-14 1974-03-15 Perfezionamento al procedimento ed alle macchine di stampaggio per iniezione

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7309087A FR2221267A1 (en) 1973-03-14 1973-03-14 Thermoplastic products with skin and core - by separately supplying two compositions to single injection block

Publications (2)

Publication Number Publication Date
FR2221267A1 true FR2221267A1 (en) 1974-10-11
FR2221267B1 FR2221267B1 (fr) 1976-05-21

Family

ID=9116282

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309087A Granted FR2221267A1 (en) 1973-03-14 1973-03-14 Thermoplastic products with skin and core - by separately supplying two compositions to single injection block

Country Status (7)

Country Link
JP (1) JPS5046768A (fr)
BE (1) BE812205A (fr)
DE (1) DE2411808A1 (fr)
FR (1) FR2221267A1 (fr)
IT (1) IT1003796B (fr)
LU (1) LU69623A1 (fr)
NL (1) NL7403291A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372016A1 (fr) * 1976-11-29 1978-06-23 Ex Cell O Corp Procede et dispositif de moulage de mousses par injection
FR2486864A1 (fr) * 1980-07-21 1982-01-22 Pont A Mousson Procede de moulage par injection de pieces revetues en matiere plastique et dispositif destine a sa mise en oeuvre

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601883A (nl) * 1986-07-21 1988-02-16 Stamicarbon Werkwijze en inrichting voor het door spuitgieten vervaardigen van een uit een aantal lagen van verschillende materialen bestaand voorwerp.
FR2622501B1 (fr) * 1987-10-29 1990-01-05 Cibie Projecteurs Procede de moulage par injection de matiere thermoplastique, composition a mouler pour realiser un objet a structure multicouche et objet ainsi realise, notamment corps de reflecteur
DE3932416A1 (de) * 1989-09-28 1991-04-11 Kloeckner Ferromatik Desma Verfahren zum spritzgiessen von mehrkomponenten-kunststoffkoerpern und vorrichtung zur durchfuehrung des verfahrens
CN110171093B (zh) * 2019-06-20 2021-04-16 滁州益佳模具设备制造有限公司 一种均匀上料混合注射的生产用发泡注塑模具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1565161A (fr) * 1967-05-03 1969-04-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1565161A (fr) * 1967-05-03 1969-04-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372016A1 (fr) * 1976-11-29 1978-06-23 Ex Cell O Corp Procede et dispositif de moulage de mousses par injection
FR2486864A1 (fr) * 1980-07-21 1982-01-22 Pont A Mousson Procede de moulage par injection de pieces revetues en matiere plastique et dispositif destine a sa mise en oeuvre

Also Published As

Publication number Publication date
LU69623A1 (fr) 1974-10-09
NL7403291A (fr) 1974-09-17
BE812205A (fr) 1974-09-12
FR2221267B1 (fr) 1976-05-21
DE2411808A1 (de) 1974-09-26
JPS5046768A (fr) 1975-04-25
IT1003796B (it) 1976-06-10

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Legal Events

Date Code Title Description
ST Notification of lapse