Compositions for removing support material from a 3D-printed object and methods of making thereof
AssigneePostProcess Technologies, Inc.
InventorsDaniel Joshua Hutchinson, Marc Farfaglia, Cassidy Grant, Matthew J. Noble
Life of this patent
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Abstract
Described are finishing solutions for removing support material and finishing 3D-printed objects. The finishing solution may contain a base (e.g., an aqueous base), an optional first caustic agent, an optional second caustic agent, an optional third caustic agent, an optional emulsifier, a polyol, a first antifoaming agent, an optional second antifoaming agent, and water. Also described are methods of using the finishing solution described herein.
Claims6
A method of removing support material from an additively manufactured object comprising:
- i) applying a finishing solution to the support material present on the additively manufactured object, the finishing solution comprising:
- 0.0002-20% by weight a base;
- 0.35-49.5% by weight a polyol;
- 0.005-15% by weight a first antifoaming agent;
- and
- water,
- wherein the finishing solution has a pH of 11 or above,
- ii) removing the support material from the additively manufactured object or a portion thereof;
- and
- iii) removing the finishing solution from the additively manufactured object.
A method of removing support material from an additively manufactured object comprising:
- i) forming a finishing solution by mixing a Component A and a Component B, wherein:
- Component A, having a pH of 13 or above, comprises:
- an aqueous base,
- a filler,
- a first caustic agent, and
- a second caustic agent, and
- Component B comprises:
- a first antifoaming agent,
- a second antifoaming agent,
- a polyol,
- an emulsifier, and
- water
- ii) applying the finishing solution to the support material present on the additively manufactured object;
- iii) removing the support material from the additively manufactured object or a portion thereof;
- and
- iv) removing the finishing solution from the additively manufactured object.
Dependencies are inferred from the claim text.