FR2256021A1 - Moulded hollow (foamed) plastic articles - by injecting molten resin into moulding cavity, and introducing filling of fluid medium - Google Patents

Moulded hollow (foamed) plastic articles - by injecting molten resin into moulding cavity, and introducing filling of fluid medium

Info

Publication number
FR2256021A1
FR2256021A1 FR7443004A FR7443004A FR2256021A1 FR 2256021 A1 FR2256021 A1 FR 2256021A1 FR 7443004 A FR7443004 A FR 7443004A FR 7443004 A FR7443004 A FR 7443004A FR 2256021 A1 FR2256021 A1 FR 2256021A1
Authority
FR
France
Prior art keywords
fluid medium
molten resin
foamed
plastic articles
injecting molten
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
FR7443004A
Other languages
English (en)
Other versions
FR2256021B1 (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.)
Asahi Dow Ltd
Original Assignee
Asahi Dow Ltd
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 JP741245A external-priority patent/JPS5325352B2/ja
Priority claimed from JP7362874A external-priority patent/JPS512763A/ja
Priority claimed from JP7464274A external-priority patent/JPS514255A/ja
Application filed by Asahi Dow Ltd filed Critical Asahi Dow Ltd
Publication of FR2256021A1 publication Critical patent/FR2256021A1/fr
Application granted granted Critical
Publication of FR2256021B1 publication Critical patent/FR2256021B1/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
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
    • B29C2045/1708—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water removing the liquid from the hollow
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1709—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a cooling fluid
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C2045/1726—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles moving the fluid through the hollow using a fluid inlet and a fluid outlet
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1705—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using movable mould parts
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/174—Applying a pressurised fluid to the outer surface of the injected material inside the mould cavity, e.g. for preventing shrinkage marks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
FR7443004A 1973-12-28 1974-12-27 Moulded hollow (foamed) plastic articles - by injecting molten resin into moulding cavity, and introducing filling of fluid medium Granted FR2256021A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP741245A JPS5325352B2 (fr) 1973-12-28 1973-12-28
JP7362874A JPS512763A (ja) 1974-06-27 1974-06-27 Atsunikubutsupinnoseikeihohooyobi sochi
JP7464274A JPS514255A (en) 1974-06-29 1974-06-29 Chukubutsupinno seikeihoho

Publications (2)

Publication Number Publication Date
FR2256021A1 true FR2256021A1 (en) 1975-07-25
FR2256021B1 FR2256021B1 (fr) 1977-07-08

Family

ID=27274836

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7443004A Granted FR2256021A1 (en) 1973-12-28 1974-12-27 Moulded hollow (foamed) plastic articles - by injecting molten resin into moulding cavity, and introducing filling of fluid medium

Country Status (3)

Country Link
DE (1) DE2461580B2 (fr)
FR (1) FR2256021A1 (fr)
IT (1) IT1027943B (fr)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034582A4 (fr) * 1979-08-24 1981-08-27 Ex Cell O Corp Procede de moulage par injection de pieces en resine moussee avec une surface de finition lisse.
EP0127961A2 (fr) * 1983-05-11 1984-12-12 Cinpres Limited Procédé et dispositif pour le moulage par injection
EP0250080A2 (fr) * 1986-05-19 1987-12-23 Ladney, Michael Procédé de moulage par injection
US4740150A (en) * 1987-03-16 1988-04-26 Peerless Cinpres Limited Injection moulding apparatus
EP0317176A2 (fr) * 1987-11-17 1989-05-24 Ladney, Michael Procédé de moulage par injection, dispositif à cet effet et produits moulés ainsi fabriqués
FR2624425A1 (fr) * 1987-12-15 1989-06-16 Plastic Omnium Cie Procede de surmoulage de feuilles non rigides par injection de matieres thermoplastiques pour realiser des pieces composites
US4923666A (en) * 1987-04-28 1990-05-08 Cinpres Limited Method of injection moulding
US4923667A (en) * 1987-09-25 1990-05-08 Cinpres Limited Method and apparatus for injection moulding
FR2646801A1 (fr) * 1989-05-12 1990-11-16 Peugeot Procede de fabrication d'un bras d'essuie-glace en matiere plastique, notamment pour vehicule automobile, bras d'essuie-glace obtenu selon ce procede et ensemble d'essuie-glace comportant un tel bras
DE3927122A1 (de) * 1989-08-17 1991-02-21 Thyssen Polymer Gmbh Spritzgussverfahren und einrichtung zur herstellung hohler kunststoffgegenstaende
US5076778A (en) * 1989-05-29 1991-12-31 Schade Kg Arrangement for producing a hollow shaped body
US5078949A (en) * 1989-05-29 1992-01-07 Schade Kg Method of producing a hollow shaped body
EP0464953A1 (fr) * 1990-07-04 1992-01-08 Airex AG Procédé de moulage d'un article à noyau mousseux et avec une ou plusieurs couches de couverture
EP0467201A2 (fr) * 1990-07-18 1992-01-22 Toyoda Gosei Co., Ltd. Moule pour le moulage par injection creux
US5096655A (en) * 1990-03-14 1992-03-17 Nitrojection Corporation Method for injection molding
US5112563A (en) * 1986-05-19 1992-05-12 Nitrojection Corporation Process of injection molding with pressurized gas assist
WO1992007697A1 (fr) * 1990-10-31 1992-05-14 Franz Delbrouck Gmbh Procede de moulage par injection de pieces en matiere thermoplastique
EP0498444A2 (fr) * 1991-02-08 1992-08-12 Sumitomo Chemical Company, Limited Procédé de fabrication d'un article creux moulé
EP0537346A1 (fr) * 1990-12-20 1993-04-21 Asahi Kasei Kogyo Kabushiki Kaisha Procede de production d'un article plastique forme
US5284429A (en) * 1992-05-07 1994-02-08 Cascade Engineering, Inc. Gas-assisted injection molding apparatus
US5474723A (en) * 1992-04-17 1995-12-12 Horikoshi; Maki Method of forming a shaped article of resin using cavity enlargement to induce foaming
EP0745468A1 (fr) * 1995-05-30 1996-12-04 Bauer Engineering GmbH Moule, en particulier pour l'injection de matière plastique de moyen de pression interne de gaz et procédé de fabrication de pièces moulées en utilisant le moule
EP1072384A2 (fr) * 1999-06-29 2001-01-31 Achim Roland Bernhardt Procédé et dispositif pour fabriquer un article moulé en matière plastique
WO2002007949A1 (fr) * 2000-07-25 2002-01-31 Volker Heppert Procede et agent moussant destines a la fabrication d'articles plastiques expanses
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
WO2004113048A2 (fr) * 2003-06-20 2004-12-29 Cinpres Gas Injection Limited Appareil et precede de moulage assiste par liquide
WO2005009717A1 (fr) * 2003-07-25 2005-02-03 Metagal Indústria E Comércio Ltda Procede de fabrication d'un support de retroviseur exterieur et support de retroviseur exterieur
US6890477B2 (en) 2003-03-25 2005-05-10 Lear Corporation Plastic injection molded articles with hollow rib members
US6899843B2 (en) 2003-03-25 2005-05-31 Lear Corporation Plastic injection molding with moveable mold members forming speaker grill

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136220A (en) * 1976-07-14 1979-01-23 Union Carbide Corporation Process for the molding of plastic structural web and the resulting articles
US4164523A (en) * 1976-09-09 1979-08-14 Robert Hanning Method of injection-molding and cooling of shaped synthetic-resin bodies
JPS59383B2 (ja) * 1977-01-05 1984-01-06 旭化成株式会社 型物の成形法
JPS53102960A (en) * 1977-02-21 1978-09-07 Asahi Chem Ind Co Ltd Injection mold
US4247515A (en) * 1978-08-23 1981-01-27 Union Carbide Corporation Process for molding of plastic structural web articles
US4234642A (en) * 1978-12-08 1980-11-18 Union Carbide Corporation Molded plastic structural web articles
US4255368A (en) * 1979-07-18 1981-03-10 Union Carbide Corporation Structural foam molding process
GB2231834A (en) * 1989-05-27 1990-11-28 Dunlop Ltd Hollow elongate mouldings
DE3936289C2 (de) * 1989-11-01 1996-01-25 Battenfeld Gmbh Vorrichtung zum Spritzgießen von Hohlräume enthaltenden Gegenständen aus Kunststoff
AT398292B (de) * 1990-05-22 1994-11-25 Engel Gmbh Maschbau Spritzgiessmaschine
DE4024549C2 (de) * 1990-08-02 1994-12-08 Helphos Gmbh Verfahren zur Herstellung von Spritzgußteilen
DE19516290C2 (de) * 1995-05-04 1997-09-11 Battenfeld Gmbh Verfahren und Vorrichtung zum Spritzgießen von Kunststoffgegenständen
US6579489B1 (en) 1999-07-01 2003-06-17 Alliance Gas Systems, Inc. Process for gas assisted and water assisted injection molding
DE10007994C2 (de) 2000-02-22 2003-11-13 Battenfeld Gmbh Verfahren und Vorrichtung zum Spritzgiessen von mindestens einen Hohlraum aufweisenden Formteilen
DE10011144B4 (de) * 2000-03-07 2004-09-23 Elco Kunststoffe Gmbh Verfahren zur Herstellung von Kunststoffformteilen mit einem Hohlraum nach dem Spritzgießverfahren
DE10114418B4 (de) * 2001-03-23 2005-03-17 Battenfeld Gmbh Verfahren zum Spritzgießen von mindestens einen Hohlraum aufweisenden Formteilen aus wärmehärtendem Kunststoff
DE10114419B4 (de) 2001-03-23 2004-11-18 Battenfeld Gmbh Verfahren zum Spritzgießen von mindestens einen Hohlraum aufweisenden Formteilen
DE10114415B4 (de) 2001-03-23 2004-11-18 Battenfeld Gmbh Verfahren zum Spritzgießen von mindestens einen Hohlraum aufweisenden Formteilen
AT502381B1 (de) * 2005-11-11 2007-03-15 Engel Austria Gmbh Verfahren zur herstellung eines gegenstandes mit einer äusseren schicht aus geschäumtem kunststoff
DE102006054709A1 (de) * 2006-11-18 2008-05-21 Friedrich Westphal Spritzgießform zur Herstellung eines einen Hohlraum aufweisenden Bauteils aus Kunststoff
DE102007029493B4 (de) * 2007-06-26 2015-07-16 Incoe International, Inc. Verfahren und Vorrichtung zum Spritzgießen geschäumter Spritzgießartikel und nach dem Verfahren hergestellte Spritzgießartikel

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034582A1 (fr) * 1979-08-24 1981-09-02 Ex-Cell-O Corporation Procede de moulage par injection de pieces en resine moussee avec une surface de finition lisse
EP0034582A4 (fr) * 1979-08-24 1981-08-27 Ex Cell O Corp Procede de moulage par injection de pieces en resine moussee avec une surface de finition lisse.
EP0127961A2 (fr) * 1983-05-11 1984-12-12 Cinpres Limited Procédé et dispositif pour le moulage par injection
EP0127961A3 (en) * 1983-05-11 1986-02-19 Peerless Cinpres Limited Process and apparatus for injection moulding and mouldings produced thereby
US4824732A (en) * 1983-05-11 1989-04-25 Cinpres Limited Process and apparatus for injection moulding and mouldings produced thereby
EP0250080A2 (fr) * 1986-05-19 1987-12-23 Ladney, Michael Procédé de moulage par injection
EP0250080A3 (en) * 1986-05-19 1989-04-26 Indra R. Baxi Method for injection molding, apparatus therefor and moldings produced thereby
US5112563A (en) * 1986-05-19 1992-05-12 Nitrojection Corporation Process of injection molding with pressurized gas assist
US4935191A (en) * 1986-10-16 1990-06-19 Thomas W. Johnson Process of insection molding with pressurized gas assist
US4740150A (en) * 1987-03-16 1988-04-26 Peerless Cinpres Limited Injection moulding apparatus
US4923666A (en) * 1987-04-28 1990-05-08 Cinpres Limited Method of injection moulding
US4923667A (en) * 1987-09-25 1990-05-08 Cinpres Limited Method and apparatus for injection moulding
EP0317176A3 (en) * 1987-11-17 1990-05-16 Indra R. Baxi Method for injection molding, apparatus therefor and moldings produced thereby
EP0317176A2 (fr) * 1987-11-17 1989-05-24 Ladney, Michael Procédé de moulage par injection, dispositif à cet effet et produits moulés ainsi fabriqués
FR2624425A1 (fr) * 1987-12-15 1989-06-16 Plastic Omnium Cie Procede de surmoulage de feuilles non rigides par injection de matieres thermoplastiques pour realiser des pieces composites
EP0322285A1 (fr) * 1987-12-15 1989-06-28 Compagnie Plastic Omnium Procédé de surmoulage de feuilles non rigides par injection de matières thermoplastiques pour réaliser des pièces composites
FR2646801A1 (fr) * 1989-05-12 1990-11-16 Peugeot Procede de fabrication d'un bras d'essuie-glace en matiere plastique, notamment pour vehicule automobile, bras d'essuie-glace obtenu selon ce procede et ensemble d'essuie-glace comportant un tel bras
US5078949A (en) * 1989-05-29 1992-01-07 Schade Kg Method of producing a hollow shaped body
US5076778A (en) * 1989-05-29 1991-12-31 Schade Kg Arrangement for producing a hollow shaped body
DE3927122A1 (de) * 1989-08-17 1991-02-21 Thyssen Polymer Gmbh Spritzgussverfahren und einrichtung zur herstellung hohler kunststoffgegenstaende
US5096655A (en) * 1990-03-14 1992-03-17 Nitrojection Corporation Method for injection molding
EP0464953A1 (fr) * 1990-07-04 1992-01-08 Airex AG Procédé de moulage d'un article à noyau mousseux et avec une ou plusieurs couches de couverture
US5374383A (en) * 1990-07-04 1994-12-20 Schreiner Luchtvaart Groep B.V. Method of forming an article consisting of a foam core and one or more covering layers
US5198177A (en) * 1990-07-18 1993-03-30 Toyoda Gosei Co., Ltd. Method of making a hollow molded product
EP0467201A2 (fr) * 1990-07-18 1992-01-22 Toyoda Gosei Co., Ltd. Moule pour le moulage par injection creux
EP0467201A3 (en) * 1990-07-18 1992-05-06 Toyoda Gosei Co., Ltd. Mold for hollow injection molding
US5295801A (en) * 1990-07-18 1994-03-22 Toyoda Gosei Co., Ltd. Mold for hollow injection molding
WO1992007697A1 (fr) * 1990-10-31 1992-05-14 Franz Delbrouck Gmbh Procede de moulage par injection de pieces en matiere thermoplastique
EP0537346A1 (fr) * 1990-12-20 1993-04-21 Asahi Kasei Kogyo Kabushiki Kaisha Procede de production d'un article plastique forme
EP0537346A4 (en) * 1990-12-20 1993-12-01 Asahi Kasei Kogyo Kabushiki Kaisha Molded resin and method of production thereof
US5277865A (en) * 1991-02-08 1994-01-11 Sumitomo Chemical Company, Limited Gas-assisted injection molding process for producing hollow molded article
EP0498444A3 (en) * 1991-02-08 1992-12-02 Sumitomo Chemical Company, Limited Method for producing hollow molded article
EP0498444A2 (fr) * 1991-02-08 1992-08-12 Sumitomo Chemical Company, Limited Procédé de fabrication d'un article creux moulé
US5474723A (en) * 1992-04-17 1995-12-12 Horikoshi; Maki Method of forming a shaped article of resin using cavity enlargement to induce foaming
US5284429A (en) * 1992-05-07 1994-02-08 Cascade Engineering, Inc. Gas-assisted injection molding apparatus
EP0745468A1 (fr) * 1995-05-30 1996-12-04 Bauer Engineering GmbH Moule, en particulier pour l'injection de matière plastique de moyen de pression interne de gaz et procédé de fabrication de pièces moulées en utilisant le moule
EP1072384A2 (fr) * 1999-06-29 2001-01-31 Achim Roland Bernhardt Procédé et dispositif pour fabriquer un article moulé en matière plastique
EP1072384A3 (fr) * 1999-06-29 2001-05-09 Achim Roland Bernhardt Procédé et dispositif pour fabriquer un article moulé en matière plastique
WO2002007949A1 (fr) * 2000-07-25 2002-01-31 Volker Heppert Procede et agent moussant destines a la fabrication d'articles plastiques expanses
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
US6953546B2 (en) 2001-07-10 2005-10-11 Cinpres Gas Injection Ltd. Plastic expulsion process for forming hollow tubular products
US6890477B2 (en) 2003-03-25 2005-05-10 Lear Corporation Plastic injection molded articles with hollow rib members
US6890478B2 (en) 2003-03-25 2005-05-10 Lear Corporation Open mold molding
US6899843B2 (en) 2003-03-25 2005-05-31 Lear Corporation Plastic injection molding with moveable mold members forming speaker grill
US6939504B2 (en) 2003-03-25 2005-09-06 Lear Corporation Plastic injection molding with moveable insert members
WO2004113048A2 (fr) * 2003-06-20 2004-12-29 Cinpres Gas Injection Limited Appareil et precede de moulage assiste par liquide
WO2004113048A3 (fr) * 2003-06-20 2005-04-21 Cinpres Gas Injection Ltd Appareil et precede de moulage assiste par liquide
WO2005009717A1 (fr) * 2003-07-25 2005-02-03 Metagal Indústria E Comércio Ltda Procede de fabrication d'un support de retroviseur exterieur et support de retroviseur exterieur

Also Published As

Publication number Publication date
FR2256021B1 (fr) 1977-07-08
DE2461580A1 (de) 1975-07-17
IT1027943B (it) 1978-12-20
DE2461580B2 (de) 1978-10-12

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