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US 11,633,908 B2Granted
Latent cure resins and related methods
AssigneeFormlabs, Inc.
InventorsMaximilian Zieringer, Alpay Kimyonok
Life of this patent
Estimating the term…
Abstract
The present disclosure relates generally to curable resins, in particular latent cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.
Claims30
A method of producing an additively-manufactured article, the method comprising:
- providing a curable material comprising a first precursor component and at least a second precursor component, different than the first precursor component, wherein the first precursor component is configured to cure when subjected to an effective amount of actinic radiation and the second precursor component is configured to cure when subjected to moisture or gas;
- exposing the curable material to actinic radiation within an enclosure to produce an intermediate polymeric structure, wherein the second precursor component is suspended in such intermediate polymer structure;
- operating a chemical and/or mechanical dehumidifier such that the humidity within the enclosure is maintained below a threshold for curing of the second precursor component;
- and
- subsequent to producing the intermediate polymeric structure, exposing the intermediate polymeric structure to moisture or gas sufficient to at least partially cure the second precursor component, thereby producing the article.
2 more elements
A method of forming an article in an additive fabrication device configured to fabricate the article by forming layers of solid material on a build platform, the method comprising:
- forming an intermediate polymeric structure, said forming the intermediate polymeric structure comprising:
- providing a curable material comprising a first precursor component and at least a second precursor component, different than the first precursor component, over the build platform in an enclosure;
- forming a first layer by at least partially curing the first precursor component;
- providing the curable material on the first formed layer;
- and
- forming a second layer by at least partially curing the first precursor component of the curable material deposited on the first layer,
- dehumidifying, using a chemical and/or mechanical dehumidifier, at least a portion of the air within the enclosure during the steps of forming the first layer and forming the second layer, such that humidity within the enclosure is maintained below a threshold for curing of the second precursor component;
- and
- subsequently to producing the intermediate polymeric structure, at least partially curing the second precursor component in the first layer and the second layer.
6 more elements
Dependencies are inferred from the claim text.