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US 11,911,236 B2Granted
Water-resistant polymer-based dental articles
Assignee3M Innovative Properties Company
InventorsZeba Parkar, Richard E. Raby, James D. Hansen
Life of this patent
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Abstract
A dental article such as a dental tray aligner or a dental crown that includes a substrate including a polymeric material having a modulus of elasticity that reduces upon exposure to water and a water-resistant coating on the substrate, where the water-resistant coating comprises parylene. In some examples, the water-resistant coating may include one or more layers that include parylene.
Claims17
A dental article comprising:
- a polymeric substrate;
- a first water-resistant coating comprising parylene, wherein the first water-resistant coating is in contact with the polymeric substrate;
- and
- an additional layer comprising an inorganic material, a polymeric hardcoat, or a combination thereof, wherein the additional layer is in contact with the first water-resistant coating;
- and
- a second water-resistant coating comprising parylene, wherein the second water-resistant coating is in contact with the additional layer comprising an inorganic material, a polymeric hardcoat, or a combination thereof.
3 more elements
A dental article comprising:
- a three-dimensionally printed polymeric substrate;
- a first water-resistant coating comprising parylene, wherein the first water-resistant coating is in contact with the three-dimensionally printed polymeric substrate;
- an additional layer comprising an inorganic material, a polymeric hardcoat, or a combination thereof, wherein the additional layer is in contact with the first water-resistant coating;
- and
- a second water-resistant coating comprising parylene, wherein the second water-resistant coating comprising parylene.
2 more elements
Dependencies are inferred from the claim text.