FR2407065A1 - Procede de moulage par injection d'objets presentant une structure interne alveolaire ou cellulaire - Google Patents

Procede de moulage par injection d'objets presentant une structure interne alveolaire ou cellulaire

Info

Publication number
FR2407065A1
FR2407065A1 FR7829437A FR7829437A FR2407065A1 FR 2407065 A1 FR2407065 A1 FR 2407065A1 FR 7829437 A FR7829437 A FR 7829437A FR 7829437 A FR7829437 A FR 7829437A FR 2407065 A1 FR2407065 A1 FR 2407065A1
Authority
FR
France
Prior art keywords
resin
alveolar
injection
presenting
blowing agent
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
FR7829437A
Other languages
English (en)
Other versions
FR2407065B3 (fr
Inventor
James W Hendry
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.)
Ex-Cell-O Corp
Original Assignee
Ex-Cell-O Corp
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
Priority claimed from US05/845,091 external-priority patent/US4155969A/en
Application filed by Ex-Cell-O Corp filed Critical Ex-Cell-O Corp
Publication of FR2407065A1 publication Critical patent/FR2407065A1/fr
Application granted granted Critical
Publication of FR2407065B3 publication Critical patent/FR2407065B3/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

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

MOULAGE PAR INJECTION. A L'AIDE D'UNE EXTRUDEUSE PRESENTANT UN INJECTEUR D'AGENT DE SOUFFLAGE ON EXTRUDE UN MELANGE DE RESINE ET D'AGENT DE SOUFFLAGE DANS UNE CHAMBRE D'INJECTION DANS LAQUELLE IL SE PRODUIT UNE DILATATION PARTIELLE DE LA RESINE, PUIS ON ARRETE L'ENVOI D'AGENT DE SOUFFLAGE EN LAISSANT L'EXTRUDEUSE EN FONCTIONNEMENT, DE SORTE QUE CELLE-CI EXTRUDE ALORS LA RESINE NON ALVEOLAIRE DANS LA MEME CHAMBRE D'INJECTION, PUIS ON ARRETE L'EXTRUSION, ON INTERROMPT LA COMMUNICATION ENTRE L'EXTRUDEUSE ET LA CHAMBRE D'INJECTION, ON FAIT COMMUNIQUER CETTE DERNIERE AVEC UN MOULE DANS LEQUEL ON INJECTE D'ABORD LA RESINE EXTRUDEE EN DERNIER, C'EST-A-DIRE LA RESINE ALVEOLAIRE, PUIS LA RESINE EXTRUDEE EN PREMIER, C'EST-A-DIRE LA RESINE NON ALVEOLAIRE. MOULAGE D'OBJETS DE DENSITE VARIABLE PRESENTANT UNE STRUCTURE INTERNE ALVEOLAIRE ET UNE SURFACE EXTERIEURE OU PEAU DENSE ET NON ALVEOLAIRE.
FR7829437A 1977-10-25 1978-10-16 Procede de moulage par injection d'objets presentant une structure interne alveolaire ou cellulaire Granted FR2407065A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/845,091 US4155969A (en) 1975-09-02 1977-10-25 Method for injection foam molding

Publications (2)

Publication Number Publication Date
FR2407065A1 true FR2407065A1 (fr) 1979-05-25
FR2407065B3 FR2407065B3 (fr) 1981-07-03

Family

ID=25294369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829437A Granted FR2407065A1 (fr) 1977-10-25 1978-10-16 Procede de moulage par injection d'objets presentant une structure interne alveolaire ou cellulaire

Country Status (3)

Country Link
JP (1) JPS5470367A (fr)
FR (1) FR2407065A1 (fr)
GB (1) GB2006668A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139548B (en) * 1983-05-11 1986-11-19 James Watson Hendry Injection moulding
JPH0788025B2 (ja) * 1987-04-28 1995-09-27 三菱瓦斯化学株式会社 偏肉補強部構造を有する合成樹脂成形品の製造法
JP4564784B2 (ja) * 2004-06-03 2010-10-20 株式会社ソディックプラステック 樹脂材料に液状添加物を分散させて射出する射出装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1140392A (fr) * 1978-07-24 1983-02-01 David A. Schuster Pompe a cylindree variable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2006668A (en) 1979-05-10
FR2407065B3 (fr) 1981-07-03
JPS5470367A (en) 1979-06-06

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