Method and material for producing model elements

Details Method and material for producing model elements Method and material for producing model elements

B - Operations, Transporting

29

C

B29C 67/00 (2006.01) B29C 41/00 (2006.01) C08J 3/12 (2006.01)

Patent

CA 2331528

The invention relates to a method for producing model elements, according to which any desired three-dimensional structure can be obtained using plastic materials, especially selected bead polymers, by means of selective sintering with laser light. The invention also relates to a special material which is especially well suited for laser sintering. A bead polymer consisting of a homo- or copolymer of monoethylenically unsaturated compounds with an average particle diameter of 2 to 200 ~m is used as a plastic powder.

L'invention concerne un procédé permettant de produire des corps-modèles, selon lequel on peut obtenir, à l'aide de matières plastiques, notamment de polymérisats en perles sélectionnés, n'importe quel type de structure tridimensionnelle, par agglomération sélective à l'aide de lumière laser. L'invention concerne en outre un matériau spécial convenant particulièrement à l'agglomération par laser. La matière plastique pulvérulente utilisée est un polymérisat en perles, à base d'homo- ou de copolymérisat de composés insaturés monoéthyléniquement, de diamètre particulaire moyen compris entre 2 et 200 ·m.

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