CA2095331A1 - Methode d'utilisation d'un gaz dans le moulage des articles en matiere plastique pour en ameliorer la qualite des surfaces - Google Patents

Methode d'utilisation d'un gaz dans le moulage des articles en matiere plastique pour en ameliorer la qualite des surfaces

Info

Publication number
CA2095331A1
CA2095331A1 CA2095331A CA2095331A CA2095331A1 CA 2095331 A1 CA2095331 A1 CA 2095331A1 CA 2095331 A CA2095331 A CA 2095331A CA 2095331 A CA2095331 A CA 2095331A CA 2095331 A1 CA2095331 A1 CA 2095331A1
Authority
CA
Canada
Prior art keywords
article
plastic
gas
amount
cavity
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
CA2095331A
Other languages
English (en)
Other versions
CA2095331C (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.)
Melea Ltd
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=24444816&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2095331(A1) "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 CA2095331A1 publication Critical patent/CA2095331A1/fr
Application granted granted Critical
Publication of CA2095331C publication Critical patent/CA2095331C/fr
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
    • 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
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CA002095331A 1990-11-07 1991-11-01 Methode d'utilisation d'un gaz dans le moulage des articles en matiere plastique pour en ameliorer la qualite des surfaces Expired - Fee Related CA2095331C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US610,386 1990-11-07
US07/610,386 US5110533A (en) 1990-11-07 1990-11-07 Method for the use of gas assistance in the molding of plastic articles to enhance surface quality

Publications (2)

Publication Number Publication Date
CA2095331A1 true CA2095331A1 (fr) 1992-05-08
CA2095331C CA2095331C (fr) 1996-08-06

Family

ID=24444816

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002095331A Expired - Fee Related CA2095331C (fr) 1990-11-07 1991-11-01 Methode d'utilisation d'un gaz dans le moulage des articles en matiere plastique pour en ameliorer la qualite des surfaces

Country Status (9)

Country Link
US (1) US5110533A (fr)
EP (1) EP0556323B2 (fr)
JP (1) JP3174962B2 (fr)
AU (1) AU660434B2 (fr)
CA (1) CA2095331C (fr)
DE (1) DE69116890T3 (fr)
ES (1) ES2084336T3 (fr)
MX (1) MX9101835A (fr)
WO (1) WO1992008595A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225141A (en) * 1988-07-11 1993-07-06 Milad Limited Partnership Process for injection molding a hollow plastic article
ES2094813T3 (es) * 1990-07-16 1997-02-01 Melea Ltd Procedimiento para la fundicion inyectada de articulos de material plastico empleando una unidad de compresion de fluido y sistema para la realizacion del mismo.
US5306134A (en) * 1991-06-12 1994-04-26 Automotive Plastic Technologies Fluid forcing nozzle
GB9114324D0 (en) * 1991-07-03 1991-08-21 Kontor Moulding Systems Ltd Injection moulding of thermoplastic polymers
US5506092A (en) * 1993-12-06 1996-04-09 Konica Corporation Method of processing black and white silver halide photographic compositions with a developer containing an anti sludgant
US5728325A (en) * 1994-04-05 1998-03-17 Blankenburg; Karl Gas assist injection molding apparatus and method with multiple temperature gas supply
JP3008821B2 (ja) * 1994-07-29 2000-02-14 住友金属工業株式会社 薄鋳片の連続鋳造方法および装置
US5702656A (en) * 1995-06-07 1997-12-30 United States Surgical Corporation Process for making polymeric articles
WO1997000748A1 (fr) * 1995-06-22 1997-01-09 Sumitomo Metal Industries, Ltd. Procede de coulee en continu de pieces minces
US5639405A (en) * 1995-09-01 1997-06-17 Elizabeth Erikson Trust Method for providing selective control of a gas assisted plastic injection apparatus
US5908641A (en) * 1996-01-22 1999-06-01 Elizabeth Erikson Trust Gas nozzle for a gas assisted injection molding system
US5939103A (en) * 1996-01-22 1999-08-17 Erikson; Jon R. Gas nozzle assembly for a gas assisted injection molding system
US5843485A (en) 1996-06-28 1998-12-01 Incoe Corporation Valve-gate bushing for gas-assisted injection molding
EP0914181A1 (fr) * 1996-07-16 1999-05-12 Astral Intertrade Limited Balle de golf
US6171543B1 (en) 1998-04-30 2001-01-09 Tokai Kogyo Co., Ltd. Rocker panel construction
US6712948B1 (en) * 1998-11-13 2004-03-30 Enthone Inc. Process for metallizing a plastic surface
WO2003018284A1 (fr) * 2001-08-22 2003-03-06 Green Tokai, Co., Ltd. Pieces de garniture legeres en plastique et leurs procedes de fabrication
JP3727596B2 (ja) * 2002-01-30 2005-12-14 日精樹脂工業株式会社 樹脂流れの観察方法
US20040065985A1 (en) * 2002-07-08 2004-04-08 Tokai Kogyo Co., Ltd. Molding method
US7320765B2 (en) * 2004-04-30 2008-01-22 International Automotive Components Group North America, Inc. Gas pin for thermocouple for gas assisted injection molding
US7182892B2 (en) * 2004-04-30 2007-02-27 Lear Corporation Gas assisted injection molding with fixed volume gas reservoir and temperature control
JP2011037062A (ja) * 2009-08-07 2011-02-24 Tekunohama Co Ltd 射出成形機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501314A1 (de) * 1975-01-15 1976-07-22 Roehm Gmbh Spritzgiessen hohler formteile aus thermoplastischen kunststoffen, insbesondere fuer den bausektor
US4474717A (en) * 1982-05-24 1984-10-02 Lang Fastener Corporation Method of making a twin-wall internally corrugated plastic structural part with a smooth non-cellular skin
GB2158002B (en) * 1984-05-04 1987-06-17 Peerless Foam Moulding Co Injection moulding
US4935191A (en) * 1986-10-16 1990-06-19 Thomas W. Johnson Process of insection molding with pressurized gas assist
US4943407A (en) * 1987-09-21 1990-07-24 Michael Ladney Method of and apparatus for injection molding with pressurized fluid assist
ES2094813T3 (es) * 1990-07-16 1997-02-01 Melea Ltd Procedimiento para la fundicion inyectada de articulos de material plastico empleando una unidad de compresion de fluido y sistema para la realizacion del mismo.

Also Published As

Publication number Publication date
AU660434B2 (en) 1995-06-29
AU8959591A (en) 1992-06-11
EP0556323B1 (fr) 1996-01-31
CA2095331C (fr) 1996-08-06
DE69116890D1 (de) 1996-03-14
WO1992008595A1 (fr) 1992-05-29
EP0556323B2 (fr) 2006-09-13
EP0556323A1 (fr) 1993-08-25
JPH04261817A (ja) 1992-09-17
DE69116890T2 (de) 1996-09-26
US5110533A (en) 1992-05-05
MX9101835A (es) 1992-07-08
DE69116890T3 (de) 2007-01-18
ES2084336T3 (es) 1996-05-01
JP3174962B2 (ja) 2001-06-11

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