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US 2026/0070280 A1Published application
Polymer suitable for additive manufacturing
AssigneePoly-Med, Inc.
InventorsMichael Scott Taylor, Brian Gaerke, Michael Aaron Vaughn
Life of this patent
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Abstract
Polymers and formulated compositions are designed to have properties that allow their effective use in additive manufacturing processes, particularly for preparing articles wherein molten monofilament polymer is laid down on top of a previously deposited line of molten monofilament polymer.
Claims20
A kit comprising an assembly inside of a pouch, the assembly comprising a monofilament fiber wound around a spool, the monofilament fiber comprising a polyaxial polymer of a formula M(B)2 or M(B)3, where:
- a) M is a copolymer comprising a plurality of repeating units, where at least 70 mol % of the repeating units in M are a polymerization product of at least one of trimethylene carbonate and epsilon-caprolactone;
- and
- b) B is a homopolymer or a copolymer comprising a plurality of repeating units, where at least 70 mol % of the repeating units in B are a polymerization product of at least one of glycolide and lactide;
- wherein the monofilament fiber is solid at ambient temperature but fluid at an elevated temperature, where the fluid has a MFI value of between about 2.5-30 grams per 10 minutes, where the elevated temperature is an operating temperature of an additive manufacturing process.
1 more element
A 3-dimensional article prepared by a method of additive manufacturing, the method comprising:
- a) melting a monofilament fiber to provide a molten form of the fiber, wherein the monofilament fiber comprises a polyaxial polymer of a formula M(B)2 or M(B)3, where M is a copolymer comprising a plurality of repeating units, where at least 70 mol % of the repeating units in M are a polymerization product of at least one of trimethylene carbonate and epsilon-caprolactone, and where B is a homopolymer or a copolymer and comprises a plurality of repeating units, where at least 70 mol % of the repeating units in B are a polymerization product of at least one of glycolide and lactide;
- b) depositing the molten form to provide an initial article;
- and
- c) cooling the initial article to room temperature to form a solid 3-dimensional article;
- wherein the article has an x, a y and a z direction, where z is a build direction and the x and y directions are perpendicular to the z direction, the article having an ultimate stress as measured in the z-direction that is within 20% of the ultimate stress of the article as measured in either of the x or y directions.
2 more elements
Dependencies are inferred from the claim text.