WO2002026466A8 - Materiau polymere moule mince de dimensions stables, avec duree de cycle reduite - Google Patents

Materiau polymere moule mince de dimensions stables, avec duree de cycle reduite

Info

Publication number
WO2002026466A8
WO2002026466A8 PCT/US2001/030512 US0130512W WO0226466A8 WO 2002026466 A8 WO2002026466 A8 WO 2002026466A8 US 0130512 W US0130512 W US 0130512W WO 0226466 A8 WO0226466 A8 WO 0226466A8
Authority
WO
WIPO (PCT)
Prior art keywords
dimensionally
stable
thin
polymeric material
cycle time
Prior art date
Application number
PCT/US2001/030512
Other languages
English (en)
Other versions
WO2002026466A1 (fr
WO2002026466A9 (fr
Inventor
Kevin J Levesque
David E Pierick
Levi A Kishbaugh
Original Assignee
Trexel Inc
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 Trexel Inc filed Critical Trexel Inc
Priority to AU2001296401A priority Critical patent/AU2001296401A1/en
Publication of WO2002026466A1 publication Critical patent/WO2002026466A1/fr
Publication of WO2002026466A8 publication Critical patent/WO2002026466A8/fr
Publication of WO2002026466A9 publication Critical patent/WO2002026466A9/fr

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
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3469—Cell or pore nucleation
    • B29C44/348—Cell or pore nucleation by regulating the temperature and/or the pressure, e.g. suppression of foaming until the pressure is rapidly decreased
    • 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
    • B29C2045/1722—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 injecting fluids containing plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0094—Condition, form or state of moulded material or of the material to be shaped having particular viscosity

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Cette invention se rapporte à des procédés de moulage de polymères, tels que des procédés de moulage par injection, qui consistent à utiliser un additif fluide supercritique de réduction de la viscosité, permettant d'obtenir une stabilité dimensionnelle supérieure des articles moulés, éventuellement à des températures plus basses et avec des durées de cycle réduites. Une grande variété de pièces à grande stabilité dimensionnelle, telles que des plateaux porte-matrices (5), sont décrites.
PCT/US2001/030512 2000-09-29 2001-10-01 Materiau polymere moule mince de dimensions stables, avec duree de cycle reduite WO2002026466A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001296401A AU2001296401A1 (en) 2000-09-29 2001-10-01 Dimensionally-stable, thin, molded polymeric material at fast cycle time

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67683100A 2000-09-29 2000-09-29
US09/676,831 2000-09-29

Publications (3)

Publication Number Publication Date
WO2002026466A1 WO2002026466A1 (fr) 2002-04-04
WO2002026466A8 true WO2002026466A8 (fr) 2002-10-24
WO2002026466A9 WO2002026466A9 (fr) 2003-02-20

Family

ID=24716187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/030512 WO2002026466A1 (fr) 2000-09-29 2001-10-01 Materiau polymere moule mince de dimensions stables, avec duree de cycle reduite

Country Status (2)

Country Link
AU (1) AU2001296401A1 (fr)
WO (1) WO2002026466A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10126629C1 (de) * 2001-05-31 2002-12-12 Ticona Gmbh Verfahren zur Herstellung gratarmer Formteile
CN104875389B (zh) * 2015-05-19 2017-05-17 珠海天威飞马打印耗材有限公司 三维打印机和打印方法、三维打印头

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981631A (en) * 1989-03-31 1991-01-01 The Goodyear Tire & Rubber Company Process for making lightweight polyester articles
US5158986A (en) * 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid
US5985188A (en) * 1998-06-09 1999-11-16 Aero Components, Inc. Method for manufacturing a chair having separate moldable parts

Also Published As

Publication number Publication date
WO2002026466A1 (fr) 2002-04-04
AU2001296401A1 (en) 2002-04-08
WO2002026466A9 (fr) 2003-02-20

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