Invention Publication
- Patent Title: LOW VISCOSITY PHOTO-CURABLE RESINS FOR THE DIRECT FABRICATION OF ORTHODONTIC APPLIANCES
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Application No.: US18529570Application Date: 2023-12-05
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Publication No.: US20240218085A1Publication Date: 2024-07-04
- Inventor: Blaine CARTER , Jennifer CHAVEZ , Lance Robert PICKENS , Michael Christopher COLE , Peter DORFINGER , Yan CHEN
- Applicant: Align Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Align Technology, Inc.
- Current Assignee: Align Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: C08F2/50
- IPC: C08F2/50 ; A61L27/14 ; A61L27/16 ; C08F20/34 ; C08K5/14

Abstract:
This disclosure provides low-viscosity resins for producing polymers with properties suitable for use in various mechanical appliances, such as orthodontic appliances (e.g., aligners). The low-viscosity resins may be photo-curable and can be used with direct fabrication methods and equipment. In various embodiments, the polymeric materials produced from the low-viscosity resins described herein have high toughness while remaining resistant to stress relaxation. Low-viscosity, photo-curable resins described herein have reduced hydrogen bonding in comparison to traditional materials (e.g., materials having high urethane content) used in orthodontic appliances.
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