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US 8,822,590 B2Granted
Maleic anhydride copolymers as soluble support material for fused deposition modelling (FDM) printer
AssigneeEvonik Röhm GmbH
InventorsFlorian Hermes, Stefan Bernhardt, Dirk Poppe, Guenter Schmitt, Markus Pridoehl, Gerd Loehden
Life of this patent
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Abstract
The invention relates to a novel support material for the fused deposition modelling process for producing three-dimensional objects. The invention relates more particularly to a 3D printing process involving support materials which are easier to remove than in the prior art. The support materials according to the invention are styrene-maleic anhydride copolymers for example.
Claims12
A support material, comprising:
- at least 60% by weight of a copolymer comprising from 30% to 60% by weight of maleic anhydride and from 30% to 60% by weight of a monomer copolymerizable with maleic anhydride,
- wherein the support material is at least 60% by weight soluble in an aqueous media at a pH between 6 and 14.
Dependencies are inferred from the claim text.