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Three dimensional printing materials system

  • US 6,416,850 B1
  • Filed: 01/29/1999
  • Issued: 07/09/2002
  • Est. Priority Date: 09/04/1996
  • Status: Expired due to Term
First Claim
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1. An article, comprising;

  • a product of a mixture of a plurality of particles comprising;

    an adhesive; and

    a filler;

    wherein said mixture of a plurality of particles further comprises a first fibrous component and a fluid that activates said adhesive to form an essentially solid article composed of said plurality of particles;

    said adhesive substantially soluble in, and said filler sparingly soluble in, said fluid;

    the article further comprising adjacent layers, each layer comprising the product of the mixture of particles and having a contour with an edge, and a final shape of the article being defined by the edge of each of the layers, wherein either a portion of the edge of a first layer is offset from a portion of the edge of an adjacent layer to form an article having an undercut and/or overhang, or a continuous first layer is provided with a discontinuous adjacent layer to form an article having a cavity.

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