Patent ID: 6645412
Filing Date: 2003-11-11
Classification: B29C,B29K,B33Y,C08K,G05B

Abstract:
In a process for making a three-dimensional object by dispensing a first thermally-solidifiable material in molten form at a first extrusion temperature in a predetermined pattern so as to define the three-dimensional object in coordination with dispensing of a second thermally-solidifiable material in molten form at a second extrusion temperature so as to define a support structure for the three-dimensional object, the improvement comprising the steps of:providing as the first thermally-solidifiable material a modeling material comprising a first thermoplastic resin and having a heat deflection temperature of greater than 120Â° C.; and providing as the second thermally-solidifiable material a support material comprising a second thermoplastic resin selected from the group consisting of a polyphenylene ether and polyolefin blend, a polyphenylsulfone and amorphous polyamide blend, and a polyphenylsulfone, polysulfone and amorphous polyamide blend.