Additive manufacturing of an object made of a polyurea material
AssigneeStratasys, Inc.
InventorsLev KUNO, Avraham LEVY, Laurent BENISVY
Life of this patent
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Abstract
Modeling material formulations usable for forming a polyurea material in additive manufacturing, and methods for additive manufacturing of three-dimensional objects made of these formulations are provided. The modeling material formulation comprises at least one isocyanate-containing material and at least one amine-containing material such that at least one isocyanate-containing material comprises at least one polyisocyanate material and at least one amine-containing material comprises at least one aromatic polyamine material.
Claims39
A method of additive manufacturing of a three-dimensional object which comprises, in at least a portion thereof, a polyurea-containing material, the method comprising sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object, thereby forming the object,
- wherein said formation of each of at least a few of said layers comprises dispensing a modeling material formulation which comprises at least one isocyanate-containing material and at least one amine-containing material, to thereby form a modeling material comprises said polyurea-containing material,
- wherein said at least one isocyanate-containing material comprises at least one polyisocyanate material and said at least one amine-containing material comprises at least one aromatic polyamine material.
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The method of claim 76, wherein said at least one aromatic polyisocyanate material features an average number of isocyanate groups of at least 2.
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A three-dimensional object comprising, in at least a portion thereof, a polyurea material.
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A modeling material formulation comprising at least one polyisocyanate material and at least one aromatic polyamine material, the formulation being usable in additive manufacturing a three-dimensional object which comprises, in at least a portion thereof, a polyurea material.
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Dependencies are inferred from the claim text.