FR2377269A1 - Objet articule d'un seul tenant en matiere plastique et son procede de moulage - Google Patents

Objet articule d'un seul tenant en matiere plastique et son procede de moulage

Info

Publication number
FR2377269A1
FR2377269A1 FR7800824A FR7800824A FR2377269A1 FR 2377269 A1 FR2377269 A1 FR 2377269A1 FR 7800824 A FR7800824 A FR 7800824A FR 7800824 A FR7800824 A FR 7800824A FR 2377269 A1 FR2377269 A1 FR 2377269A1
Authority
FR
France
Prior art keywords
foam
plastic material
mold
foam core
articulated object
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.)
Pending
Application number
FR7800824A
Other languages
English (en)
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.)
USM Corp
Original Assignee
USM 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
Application filed by USM Corp filed Critical USM Corp
Publication of FR2377269A1 publication Critical patent/FR2377269A1/fr
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
    • B29C44/0446—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 increasing the density locally by compressing part of the foam while still in the mould
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/05—Use of one or more blowing agents together
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/14—Plastic and nonmetallic article shaping or treating: processes forming integral skin on a foamed product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/16—Molding foamed polypropylen articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992—Density or compression of components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249961—With gradual property change within a component

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

L'invention concerne un objet articulé d'un seul tenant en matière plastique et son procédé de moulage. Un tel objet est moulé en injectant un mélange fluide d'un polymère et d'un agent de soufflage dans la cavité d'un moule extensible de manière qu'il la remplisse à l'état sans mousse, mais à la température de moussage Le moule est déployé de façon à former des parties de l'objet ayant une âme en mousse, tandis que la résine située à proximité de la surface du moule est encore fluide, et un élément de façonnage de l'articulation est maintenu en position pour former une partie flexible mince sans mousse, tandis que des parties de transition divergentes permettent une augmentation progressive de l'épaisseur de la mousse centrale entre la partie flexible et les panneaux de l'objet qui présentent une ame de mousse d'épaisseur normale. Application à la réalisation d'un objet articulé présentant une ame en mousse dans ses panneaux.
FR7800824A 1977-01-14 1978-01-12 Objet articule d'un seul tenant en matiere plastique et son procede de moulage Pending FR2377269A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75925677A 1977-01-14 1977-01-14

Publications (1)

Publication Number Publication Date
FR2377269A1 true FR2377269A1 (fr) 1978-08-11

Family

ID=25054983

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800824A Pending FR2377269A1 (fr) 1977-01-14 1978-01-12 Objet articule d'un seul tenant en matiere plastique et son procede de moulage

Country Status (7)

Country Link
US (2) US4154784A (fr)
JP (1) JPS5388452A (fr)
CA (1) CA1072285A (fr)
DE (1) DE2758924A1 (fr)
FR (1) FR2377269A1 (fr)
GB (2) GB1595273A (fr)
IT (1) IT1092010B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615834A1 (fr) * 1993-03-15 1994-09-21 Sumitomo Wiring Systems, Ltd. Pièce moulée en résine thermoplastique et procédé pour sa préparation
EP0642906A2 (fr) * 1993-09-10 1995-03-15 Sumitomo Wiring Systems, Ltd. Pièce moulée en résine thermoplastique et procédé pour sa production

Families Citing this family (32)

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Publication number Priority date Publication date Assignee Title
NL8001681A (nl) * 1980-03-21 1981-10-16 Koorevaar Arie Werkwijze en inrichting voor het vormen van een band voor een wielvelg.
US4304810A (en) * 1980-07-17 1981-12-08 Arco Polymers, Inc. Apparatus for and method of making foam articles having densified reinforcing regions
US4400918A (en) * 1981-11-30 1983-08-30 Lewis Eugene R Foam/foil backer for siding and siding assembly and method for making same
GB2130080A (en) * 1982-11-13 1984-05-31 Frederick James Edwards Folding chopping board
US4463046A (en) * 1983-10-11 1984-07-31 Crane Plastics, Inc. Synthetic resin panels joined by an integral hinge having dual durometer plies
DE3419824A1 (de) * 1984-05-26 1985-11-28 Bayer Ag, 5090 Leverkusen Verfahren und formwerkzeug zum herstellen von formteilen mit grill-, gitter- oder rostartigen bereichen, wie kfz-soft-faces, spoiler, bumper, aus einer fliessfaehigen masse
US4769199A (en) * 1987-01-06 1988-09-06 Haworth, Inc. Process of making plastic hinge for raceway
EP0295587A3 (fr) * 1987-06-16 1989-03-29 André Klein Structures comportant des nervures juxtaposées longitudinalement
JPS6431867U (fr) * 1987-08-19 1989-02-28
US5476629A (en) * 1992-12-25 1995-12-19 Citizen Watch Co. Ltd. Method for manufacturing IC card substrate
US5776388A (en) * 1994-02-07 1998-07-07 E. Khashoggi Industries, Llc Methods for molding articles which include a hinged starch-bound cellular matrix
US5705203A (en) * 1994-02-07 1998-01-06 E. Khashoggi Industries Systems for molding articles which include a hinged starch-bound cellular matrix
US5547621A (en) * 1994-09-30 1996-08-20 Taisei Plas Co., Ltd. Cavity expanding and contracting foam injection molding method
US5661936A (en) * 1995-05-18 1997-09-02 Ellingson; Robert Method of attaching extruded cellular panels
EP0765722A1 (fr) * 1995-09-28 1997-04-02 Siebolt Hettinga Procédé de contrÔle d'épaisseur de la peau d'un article plastique de densité contrÔlé
US5876813A (en) * 1996-07-09 1999-03-02 Senitnel Products Corp Laminated foam structures with enhanced properties
NL1004572C2 (nl) * 1996-11-20 1998-05-25 Corell Resin Technology Bv Werkwijze voor het vervaardigen van een monolitisch kunststof voorwerp, alsmede met die werkwijze verkregen voorwerp.
JP3947321B2 (ja) * 1999-03-04 2007-07-18 パイオニア株式会社 発泡成形体およびその成形方法およびそれによるスピーカ振動板
US6235988B1 (en) 1999-05-28 2001-05-22 Pent Assemblies, Inc. Wall panel assembly
US6345479B1 (en) * 1999-07-12 2002-02-12 Crane Plastics Manufacturing Ltd. Hinged thermoplastic structural piece containing injection molded portion
DE10062557B4 (de) * 2000-12-15 2018-11-08 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen eines Kunststoff-Formteiles durch ein Thermoplast-Schaumspritzgießverfahren
GB0109956D0 (en) * 2001-04-23 2001-06-13 K Pow Ltd Unitary-sheet articles
CN100522552C (zh) * 2001-10-25 2009-08-05 Ecim科技公司 用于成型薄壁产品的方法和设备以及由此制造的产品
WO2003037599A1 (fr) * 2001-11-01 2003-05-08 Dow Global Technologies Inc. Mousse polymere pliable a fente renforcee
JP3106107U (ja) * 2004-06-22 2004-12-16 リン チャン，ジュイ ファイルホルダー
WO2012131834A1 (fr) * 2011-03-25 2012-10-04 日本たばこ産業株式会社 Procédé de formation d'une ligne tracée de flan, procédé de fabrication d'emballages l'incorporant, et emballage
DE102011105775B4 (de) * 2011-06-24 2016-01-14 Wittmann Battenfeld Gmbh Verfahren zum Spritzgießen von Kunststoff-Formteilen aus thermoplastischem Kunststoff
DK177606B1 (da) * 2011-11-28 2013-11-25 Baby Dan As Børnesikringsgitter
JP6045371B2 (ja) * 2013-01-29 2016-12-14 コクヨ株式会社 家具用扉
AU2015303820B2 (en) * 2014-08-12 2020-10-15 Icee Holdings Pty Ltd System and method for creating a fold in a portion of expandable material
US10422169B2 (en) * 2017-04-03 2019-09-24 B/E Aerospace, Inc. Flexible hinge assembly for aircraft interior components and the like
DE102020114261A1 (de) 2020-05-28 2021-12-02 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Herstellung eines Innenraumverkleidungsteils für ein Kraftfahrzeug sowie Innenraumverkleidungsteil für ein Kraftfahrzeug und Kraftfahrzeug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024159A (en) * 1963-07-01 1966-03-30 Continental Can Co Improvements in or relating to containers for fragile articles

Family Cites Families (11)

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US3058161A (en) * 1956-02-24 1962-10-16 Dow Chemical Co A method of molding expandable thermoplastic resinous beads
US3222437A (en) * 1962-06-18 1965-12-07 Hercules Powder Co Ltd Process for simultaneously molding and expanding stereoregular polypropylene to form a hinge
US3767742A (en) * 1967-07-26 1973-10-23 Ici Ltd Process of injection moulding a hinged article having foam cored members joined by an unfoamed hinge
US3900550A (en) * 1970-04-24 1975-08-19 Dow Chemical Co Method of enhancing flexure of plastic hinges
US3731449A (en) * 1971-06-08 1973-05-08 J Kephart Structural panel
US3958053A (en) * 1971-06-16 1976-05-18 Imperial Chemical Industries Limited Articles having integral transparent or translucent panels
US3776989A (en) * 1972-05-08 1973-12-04 Usm Corp Method for injection molding articles of foam material involving autoge-nous flow
US3937447A (en) * 1972-12-27 1976-02-10 Siemag Siegener Maschinenbau Gmbh Injection molding apparatus
JPS5148083B2 (fr) * 1973-01-09 1976-12-18
ZA736098B (en) * 1973-09-05 1975-01-29 Polycrat Ltd Roller doors and the like
US4073610A (en) * 1976-02-05 1978-02-14 Cox Bernard K Apparatus for producing a foldable plastic strip

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024159A (en) * 1963-07-01 1966-03-30 Continental Can Co Improvements in or relating to containers for fragile articles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615834A1 (fr) * 1993-03-15 1994-09-21 Sumitomo Wiring Systems, Ltd. Pièce moulée en résine thermoplastique et procédé pour sa préparation
US5645779A (en) * 1993-03-15 1997-07-08 Sumitomo Wiring Systems, Ltd. Molding part of thermoplastic resin and method of fabricating same
EP0642906A2 (fr) * 1993-09-10 1995-03-15 Sumitomo Wiring Systems, Ltd. Pièce moulée en résine thermoplastique et procédé pour sa production
EP0642906A3 (fr) * 1993-09-10 1995-05-10 Sumitomo Wiring Systems Pièce moulée en résine thermoplastique et procédé pour sa production.
US5779952A (en) * 1993-09-10 1998-07-14 Sumitomo Wiring Systems, Ltd. Method of fabricating a molded part of thermoplastic resin

Also Published As

Publication number Publication date
US4157413A (en) 1979-06-05
JPS5388452A (en) 1978-08-03
DE2758924A1 (de) 1978-07-20
GB1595273A (en) 1981-08-12
US4154784A (en) 1979-05-15
GB1595272A (en) 1981-08-12
IT7819195A0 (it) 1978-01-12
CA1072285A (fr) 1980-02-26
IT1092010B (it) 1985-07-06

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