Water dispersible polymer for use in additive manufacturing
AssigneeStratasys, Inc.
InventorWilliam R. Priedeman, JR.
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Abstract
A water dispersible sulfo-polyamide is configured as a filament for use as an extrudable support material in the additive manufacture of a part comprising a non water dispersible polymer. The water dispersible sulfo-polyamide is a reaction product of a sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer.
Claims35
A water dispersible sulfo-polyamide configured as a filament for use as an extrudable support material in the additive manufacture of a part comprising a non water dispersible polymer, wherein the water dispersible sulfo-polyamide is a reaction product of a sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer.
The water dispersible polymer of claim 6, and further comprising approximately 20 to 30% metal sulfoisophthalic monomer.
A method of additive manufacturing a support structure for use with a part made of a non water dispersible polymer, the method comprising:
- the support structure comprising a water dispersible sulfo-polyamide comprising a reaction product of a metal sulfur monomer and the water dispersible polymer comprising a polyamide having a glass transition temperature within ±20° C. of the glass transition temperature of the non water dispersible polymer;
- and
- separating the non water dispersible polymer from the water dispersible polymer by subjecting the water dispersible polymer to water.
A water dispersible sulfo-polyamide configured as a filament for use as an extrudable consumable material in the additive manufacture of a part comprising:
- a non water dispersible polymer, wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polyamide being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer.
A water dispersible sulfo-polyamide configured as a filament for use as an extrudable consumable material in an additive manufacturing system, the water dispersible sulfo-polyamide comprising a condensation reaction product of:
- about an equal mol % of diacid monomers and diamine monomers, the diacid monomers comprising metal sulfo monomer ranging from about 20 mol % to about 50 mol % of the reaction product and diacids in the range of 15 mol % to about 60 mol % and wherein the diamine monomers comprises about 85 mol % and about 100 mol % of aliphatic diamines and about 0 mol % about 15 mol % cyclo-aliphatic diamines.
The water dispersible sulfo-polyamide 27, wherein the diacids comprise aliphatic diacids and/or aromatic diamides.
The water dispersible sulfo-polyamide 29, wherein the aliphatic diacids comprises adipic acid, sebacic acids, dodecanoic acid and combinations thereof.
The water dispersible sulfo-polyamide 29, wherein the aromatic diacids comprises isothalic acid, terephthalic acid and combinations thereof.
Dependencies are inferred from the claim text.