DE69405373D1 - Verfahren und Vorrichtung zum Giessen von Formkörpern aus Kunststoff unterschiedlicher Dichte - Google Patents

Verfahren und Vorrichtung zum Giessen von Formkörpern aus Kunststoff unterschiedlicher Dichte

Info

Publication number
DE69405373D1
DE69405373D1 DE69405373T DE69405373T DE69405373D1 DE 69405373 D1 DE69405373 D1 DE 69405373D1 DE 69405373 T DE69405373 T DE 69405373T DE 69405373 T DE69405373 T DE 69405373T DE 69405373 D1 DE69405373 D1 DE 69405373D1
Authority
DE
Germany
Prior art keywords
mold
plastic
mold section
mold cavity
molded articles
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 - Fee Related
Application number
DE69405373T
Other languages
English (en)
Other versions
DE69405373T2 (de
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=DE69405373(D1) "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
Publication of DE69405373D1 publication Critical patent/DE69405373D1/de
Application granted granted Critical
Publication of DE69405373T2 publication Critical patent/DE69405373T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
DE69405373T 1993-06-23 1994-06-22 Verfahren und Vorrichtung zum Giessen von Formkörpern aus Kunststoff unterschiedlicher Dichte Expired - Fee Related DE69405373T2 (de)

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 (2)

Publication Number Publication Date
DE69405373D1 true DE69405373D1 (de) 1997-10-09
DE69405373T2 DE69405373T2 (de) 1998-01-08

Family

ID=22170114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69405373T Expired - Fee Related DE69405373T2 (de) 1993-06-23 1994-06-22 Verfahren und Vorrichtung zum Giessen von Formkörpern aus Kunststoff unterschiedlicher Dichte

Country Status (7)

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

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 (de) 1994-06-24 1996-01-17 Corell Resin Technology B.V. Verfahren zur Herstellung einer Kunstoffplatte und damit hergestellte Platte
US5798063A (en) * 1994-10-03 1998-08-25 E. I. Du Pont De Nemours And Company Molding process using gas under pressure
EP0765722A1 (de) * 1995-09-28 1997-04-02 Siebolt Hettinga Verfahren zum Kontrollieren der Dicke der Haut eines Kunststoffgegenstandes mit regelter Dichte
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
US6245263B1 (en) * 1996-09-13 2001-06-12 Chisso Corporation Process of injection molding a foamable 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.
WO2011025916A1 (en) * 2009-08-28 2011-03-03 Closure Systems International, Inc. Method of compression molding a plastic closure from foamed polymeric material

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 (de) * 1980-03-12 1984-08-22 Rank Xerox Limited Umwandlungsvorrichtung für Spritzgiessmaschinen
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
ES2104913T3 (es) * 1991-04-24 1997-10-16 Sumitomo Chemical Co Molde de presion y metodo para el moldeo por presion de resina termoplastica utilizando el mismo.

Also Published As

Publication number Publication date
GR3025274T3 (en) 1998-02-27
DK0664196T3 (da) 1998-02-02
DE69405373T2 (de) 1998-01-08
ATE157589T1 (de) 1997-09-15
EP0664196A1 (de) 1995-07-26
US5437823A (en) 1995-08-01
ES2108385T3 (es) 1997-12-16
EP0664196B1 (de) 1997-09-03

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee