ES2108385T3 - Procedimiento y dispositivo de moldeo de articulos de plastico de densidades diferentes. - Google Patents

Procedimiento y dispositivo de moldeo de articulos de plastico de densidades diferentes.

Info

Publication number
ES2108385T3
ES2108385T3 ES94304530T ES94304530T ES2108385T3 ES 2108385 T3 ES2108385 T3 ES 2108385T3 ES 94304530 T ES94304530 T ES 94304530T ES 94304530 T ES94304530 T ES 94304530T ES 2108385 T3 ES2108385 T3 ES 2108385T3
Authority
ES
Spain
Prior art keywords
mold
molding
mold section
mold cavity
procedure
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.)
Expired - Lifetime
Application number
ES94304530T
Other languages
English (en)
Inventor
Siebolt Hettinga
Harold J Buehl
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22170114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2108385(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of ES2108385T3 publication Critical patent/ES2108385T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C44/0407—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 regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

UN METODO DE MOLDEADO DE UN ARTICULO DE PLASTICO QUE CONSISTE EN: A) PREVER UNA PRIMERA SECCION DE MOLDEADO (42), B) PREVER UNA SEGUNDA SECCION DE MOLDEADO QUE (44), CUANDO SE MUEVE EN ACOPLAMIENTO SELLADO CON DICHA PRIMERA SECCION DE MOLDEADO, FORMA UNA CAVIDAD DE MOLDEADO PARA MOLDEAR UN ARTICULO DE PLASTICO; C) MEZCLAR UN AGENTE DE SOPLADO CON UN MATERIAL DE INYECCION DE PLASTICO PARA FORMAR UNA MEZCLA DE INYECCION; D) MANTENER FIJAS DICHA PRIMERA SECCION DE MOLDEADO Y DICHA SEGUNDA SECCION DE MOLDEADO JUNTAS PARA FORMAR DICHA CAVIDAD DE MOLDEADO DE UN VOLUMEN INICIAL; E) INYECTAR DICHA MEZCLA DE INYECCION DENTRO DE DICHA CAVIDAD DE MOLDEADO; (F) PERMITIR QUE DICHA MEZCLA DE REACCION SE REFRIGERE CONTRA LOS LADOS INTERIORES DE DICHA CAVIDAD DE MOLDEADO; G) MOVER DICHA PRIMERA SECCION DE MOLDEADO Y DICHA SEGUNDA SECCION DE MOLDEADO JUNTAS CON LO QUE DICHO VOLUMEN INICIAL DE DICHA CAVIDAD DE MOLDEADO SE REDUCE A UN VOLUMEN DE COMPRESION; H) PERMITIR QUE DICHO MATERIAL DE INYECCION SE REFRIGERE; Y (I) RETIRAR EL ARTICULO DE PLASTICO ACABADO DE DICHA CAVIDAD DE MOLDEADO.
ES94304530T 1993-06-23 1994-06-22 Procedimiento y dispositivo de moldeo de articulos de plastico de densidades diferentes. Expired - Lifetime ES2108385T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/082,266 US5437823A (en) 1993-06-23 1993-06-23 Method for molding a plastic article of varied density

Publications (1)

Publication Number Publication Date
ES2108385T3 true ES2108385T3 (es) 1997-12-16

Family

ID=22170114

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94304530T Expired - Lifetime ES2108385T3 (es) 1993-06-23 1994-06-22 Procedimiento y dispositivo de moldeo de articulos de plastico de densidades diferentes.

Country Status (7)

Country Link
US (1) US5437823A (es)
EP (1) EP0664196B1 (es)
AT (1) ATE157589T1 (es)
DE (1) DE69405373T2 (es)
DK (1) DK0664196T3 (es)
ES (1) ES2108385T3 (es)
GR (1) GR3025274T3 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810438A (en) * 1994-06-13 1998-09-22 Herman Miller, Inc. One piece molded seating structure
EP0692358A1 (en) 1994-06-24 1996-01-17 Corell Resin Technology B.V. Method for manufacturing a plastic board and a board obtained with this method
US5798063A (en) * 1994-10-03 1998-08-25 E. I. Du Pont De Nemours And Company Molding process using gas under pressure
EP0765722A1 (en) * 1995-09-28 1997-04-02 Siebolt Hettinga Method for controlling skin thickness of plastic article made with controlled density
US5817704A (en) * 1996-03-08 1998-10-06 The Procter & Gamble Company Heterogeneous foam materials
US6071461A (en) * 1996-08-13 2000-06-06 Hettinga; Siebolt Method of making a multiple-layer article having a plastic member with a surface application material effectively bonded thereto
EP0925901A4 (en) * 1996-09-13 2001-09-05 Chisso Corp INJECTION MOLDING PROCESS FOR AN EXPANDABLE PLASTIC COMPOSITION
JP3814032B2 (ja) * 1996-11-01 2006-08-23 本田技研工業株式会社 成形品
DE19718450C2 (de) * 1997-04-30 1999-02-25 August Braun Putzleiste mit daran befestigtem Armierungsmaterial
US6146562A (en) * 1998-03-13 2000-11-14 Hettinga; Siebolt Method of injection molding an article with a cellular density distribution which gradually varies between a high density cellular exterior and a low density cellular interior
KR100314431B1 (ko) * 1999-04-23 2001-11-15 구자홍 진공단열재 코어의 제조방법
US6660195B2 (en) * 2000-03-10 2003-12-09 Sumitomo Chemical Company, Limited Process for producing a skin material-laminated foamed thermoplastic resin molding
JP4894116B2 (ja) * 2001-09-20 2012-03-14 トヨタ紡織株式会社 発泡部を備えるプレス成形体の製造方法
SE0301075D0 (sv) * 2003-05-08 2003-05-08 Arca Systems Ab A process for the manufacturing of an article made of plastic material
US20080190924A1 (en) * 2007-02-13 2008-08-14 Sherwood Services, Ag Medical sharps container
FR2914216B1 (fr) * 2007-03-28 2011-02-11 Inoplast Sa Piece en materiau plastique allege et procede de fabrication d'une telle piece
CH701342B1 (de) * 2007-08-14 2011-01-14 Kunststoffwerk Ag Buchs Verfahren und Einrichtung zur Herstellung von Fertigteilen.
BR112012004461A2 (pt) * 2009-08-28 2016-04-05 Closure Systems Int Inc "método de moldagem por compressão de um fechamento plástico de material polimérico espumado"

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268819B (de) * 1962-08-07 1968-05-22 Collo Rheincollodium Koeln G M Verfahren zur Herstellung leichter Formpressteile aus haertbaren Kunststoff-Schaumstoffen
US3983196A (en) * 1972-03-13 1976-09-28 The Dow Chemical Company Method of injection molding structural foam having accurate mold surface reproductions
US4096218A (en) * 1973-07-19 1978-06-20 Asahi-Dow Limited Method of producing foamed thermoplastic resin articles having smooth and glossy surfaces free from swirl marks and hair cracks
EP0035916B1 (en) * 1980-03-12 1984-08-22 Rank Xerox Limited Conversion apparatus for injection moulding machines
JPS5839425A (ja) * 1981-09-04 1983-03-08 Hashimoto Forming Co Ltd 低圧射出成形法
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
JPS6168209A (ja) * 1984-09-12 1986-04-08 Aisin Seiki Co Ltd ポリアミド成形品の成形加工法
JP2508908B2 (ja) * 1990-09-28 1996-06-19 住友化学工業株式会社 熱可塑性樹脂のプレス成形方法
JPH0777739B2 (ja) * 1990-10-05 1995-08-23 住友化学工業株式会社 ポリプロピレン樹脂発泡成形体の成形方法
JP2503753B2 (ja) * 1990-10-12 1996-06-05 住友化学工業株式会社 登泡層が裏打ちされた表皮材を貼合したポリプロピレン樹脂成形体の成形方法
US5128202A (en) * 1991-04-12 1992-07-07 E. I. Du Pont De Nemours And Company Melt fabrication of foam articles
WO1992019433A1 (fr) * 1991-04-24 1992-11-12 Sumitomo Chemical Company, Limited Matrice et procede de matriçage par pression de resine thermoplastique a l'aide de cette matrice

Also Published As

Publication number Publication date
DE69405373T2 (de) 1998-01-08
GR3025274T3 (en) 1998-02-27
DE69405373D1 (de) 1997-10-09
DK0664196T3 (da) 1998-02-02
ATE157589T1 (de) 1997-09-15
US5437823A (en) 1995-08-01
EP0664196A1 (en) 1995-07-26
EP0664196B1 (en) 1997-09-03

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