Align Technology, Inc.

Umesh Upendra Choudhary

Michael Christopher Cole

Peter Dorfinger

Viswanath Meenakshisundaram

Crystal Tjhia

Jennifer Chavez

Jessica Kalay Su

Materials and additively manufactured objects including mechanically interlocking elements are provided. In some embodiments, a dental appliance includes an appliance body made at least partially out of a composite material. The composite material can include an interlocking structure having a plurality of interlocking elements. The interlocking structure can have a first mechanical property. The composite material can also include a matrix surrounding at least a portion of the interlocking structure. The matrix can have a second mechanical property different from the first mechanical property.

Materials and additively manufactured objects with mechanically interlocking elements

A system includes a build platform configured to support an object that is being formed from layers of resin. The system further includes one or more blades configured to provide the layers of resin to form the object on the build platform. At least a first blade of the one or more blades is configured to vibrate to reduce viscosity of the layers of resin.

Recoating system including moving blade

A system includes a partial enclosure configured to hold resin. The system further includes one or more structures configured to at least partially cover the resin. The one or more structures are configured to prevent evaporation of the resin. The system further includes a build platform configured to support an object that is being formed from layers of the resin. A first blade is configured to provide the layers of the resin to form the object on the build platform.

Recoating system with reduced resin evaporation

A system includes a carrier film including an outer surface and an inner surface. The inner surface is configured to contact rollers. The system further includes a first blade configured to form a layer of resin on the outer surface of the carrier film. The system further includes a second blade configured to prevent printed features from contacting the first blade. The system further includes a build platform. A portion of the layer of resin is to be added to an object being formed on the build platform.

Recoating system including multiple blades

Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, and telechelic block polymers and methods of using such polymers in curable compositions to produce medical devices such as orthodontic appliances comprising the polymeric compositions comprising the telechelic block polymers.

Photopolymerizable block polymers and methods of producing and using the same

The present disclosure provides methods and processes for the recovery of compounds (e.g., pendant groups) from polymeric materials, as well as methods for recycling and reusing such compounds by synthetically converting a recovered compound to building blocks that can be used in, e.g., curable resins for the fabrication of new devices, such as medical devices (e.g., orthodontic appliances).

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Santa Cruz, CA, United States of America

Umesh Upendra Choudhary