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    Publication numberWO1990001727 A1
    Publication typeApplication
    Application numberPCT/US1989/003303
    Publication dateFeb 22, 1990
    Filing dateJul 31, 1989
    Priority dateAug 8, 1988
    Also published asEP0430992A1, EP0430992A4
    Publication numberPCT/1989/3303, PCT/US/1989/003303, PCT/US/1989/03303, PCT/US/89/003303, PCT/US/89/03303, PCT/US1989/003303, PCT/US1989/03303, PCT/US1989003303, PCT/US198903303, PCT/US89/003303, PCT/US89/03303, PCT/US89003303, PCT/US8903303, WO 1990/001727 A1, WO 1990001727 A1, WO 1990001727A1, WO 9001727 A1, WO 9001727A1, WO-A1-1990001727, WO-A1-9001727, WO1990/001727A1, WO1990001727 A1, WO1990001727A1, WO9001727 A1, WO9001727A1
    InventorsEdward J. Murphy, Robert E. Ansel, John J. Krajewski
    ApplicantDesoto, Inc.
    Export CitationBiBTeX, EndNote, RefMan
    Patent Citations (11), Referenced by (20), Classifications (13), Legal Events (5)
    External Links: Patentscope, Espacenet
    Compositions photodurcissables et procede de coulee de precision
    WO 1990001727 A1
    Abstract
    On a mis au point un procédé de coulée de précision utilisant un modèle produit par stéréolithographie. Ledit modèle a une matrice polymère dans laquelle sont dispersés des espaces interstitiels. Lesdits espaces comportent une matière thermoplastique s'écoulant à partir de la matrice lors du chauffage pendant le procédé de coulée de précision, ramollissant le modèle afin d'empêcher que la dilatation thermique du modèle ne fendille ou ne déforme le moule.
    Description  available in English
    Claims  available in English
    Patent Citations
    Cited PatentFiling datePublication dateApplicantTitle
    EP0085472A1 *Jan 5, 1983Aug 10, 1983Toray Industries, Inc.Composition polymère photosensible
    SU741227A1 * Title not available
    US4078035 *Aug 5, 1976Mar 7, 1978Kubota, Ltd.Method for making disposable model for precision investment casting
    US4203770 *Jul 20, 1978May 20, 1980E. I. Du Pont De Nemours And CompanyNegative tonable photohardenable element
    US4356859 *Jan 15, 1981Nov 2, 1982Rolls-Royce LimitedLost wax feeder and runner systems
    US4421840 *Dec 9, 1981Dec 20, 1983Basf AktiengesellschaftPhotopolymerizable recording material containing a diisocyanate modified nylon binder
    US4423135 *Aug 16, 1982Dec 27, 1983E. I. Du Pont De Nemours & Co.Preparation of photosensitive block copolymer elements
    US4575330 *Aug 8, 1984Mar 11, 1986Uvp, Inc.Apparatus for production of three-dimensional objects by stereolithography
    US4603726 *Nov 4, 1983Aug 5, 1986Espe Fabrik Pharmazeutischer Praparate GmbhMethod of making individual castings
    US4621044 *Apr 4, 1985Nov 4, 1986Toray Industries, Inc.Photosensitive polymer composition
    US4814257 *Apr 9, 1987Mar 21, 1989E. I. Du Pont De Nemours And CompanyOptical coating composition
    * Cited by examiner
    Referenced by
    Citing PatentFiling datePublication dateApplicantTitle
    WO1992002572A1 *Jul 24, 1991Feb 20, 1992Dsm N.V.Compositions contenant des melanges reactifs et associatifs
    WO1996041239A1 *Jun 4, 1996Dec 19, 1996E.I. Du Pont De Nemours And CompanyComposition epoxydique photodurcissable
    WO1997018933A1 *Nov 21, 1996May 29, 1997The University Of NottinghamProcede de fabrication d'un objet tridimensionnel
    WO2008042375A1 *Oct 1, 2007Apr 10, 2008Dentsply International Inc.Enveloppe permettant de fabriquer des restaurations dentaires provisoires et à long terme
    WO2008042376A1 *Oct 1, 2007Apr 10, 2008Dentsply International Inc.Procédé de fabrication de couronnes et de bridges dentaires provisoires et à long terme
    EP0499486A2 *Feb 14, 1992Aug 19, 1992E.I. Du Pont De Nemours And CompanyProcédé de coulée de précision et composition du modèle
    EP0499486A3 *Feb 14, 1992Oct 14, 1992E.I. Du Pont De Nemours And CompanyInvestment casting method and pattern material
    EP0536086A1 *Sep 24, 1992Apr 7, 1993Ciba-Geigy AgMélange photosensible
    EP0649691A1 *Sep 22, 1994Apr 26, 1995Texas Instruments IncorporatedProcédé de production d'un modèle pour moulage de précision
    EP0729823A1 *Feb 12, 1996Sep 4, 1996General Motors CorporationProcédé de fabrication d'une électrode d'usinage par décharge électrique utilisant un modèle stéréolithographique
    EP0729824A1 *Feb 12, 1996Sep 4, 1996General Motors CorporationProcédé de fabrication rapide d'un prototype ou d'un moule en utilisant un modèle stéréolithigraphique
    EP0763417A1 *Sep 12, 1996Mar 19, 1997Toyota Jidosha Kabushiki KaishaProcédé et dispositif pour déterminer l'épaisseur et la forme de couches laminées d'un produit
    US5178673 *Apr 12, 1991Jan 12, 1993Union Carbide Chemicals & Plastics Technology CorporationInvestment casting compositions and processes for the manufacture and use thereof
    US5616293 *Mar 3, 1995Apr 1, 1997General Motors CorporationRapid making of a prototype part or mold using stereolithography model
    US5728345 *Mar 3, 1995Mar 17, 1998General Motors CorporationMethod for making an electrode for electrical discharge machining by use of a stereolithography model
    US5855836 *Jun 12, 1997Jan 5, 19993D Systems, Inc.Method for selective deposition modeling
    US6110602 *Nov 21, 1996Aug 29, 2000University Of NottinghamMethod of making a three-dimensional object
    US6133355 *Jun 12, 1997Oct 17, 20003D Systems, Inc.Selective deposition modeling materials and method
    US6305769Jun 13, 1997Oct 23, 20013D Systems, Inc.Selective deposition modeling system and method
    US9119692Dec 18, 2013Sep 1, 2015Dentsply International Inc.Shell forms for making provisional and long-term dental restorations
    * Cited by examiner
    Classifications
    International ClassificationB22C7/02, G03F7/00, B29C67/00, B22C9/04, G03F7/027
    Cooperative ClassificationG03F7/0037, B22C9/04, B22C7/023, B29C67/0066
    European ClassificationB22C9/04, B22C7/02B, G03F7/00S, B29C67/00R2D2
    Legal Events
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