公开(公告)号：US20240269915A1

公开(公告)日：2024-08-15

申请号：US18567589

申请日：2022-06-02

Applicant: Carbon, Inc.

Inventor： Keshav Swarup ,  Gregory Robert Robbins ,  Bob E. Feller ,  Alexander D. Denmark ,  Owen Lu

IPC: B29C51/30 ,  A61C7/08 ,  B29C33/38 ,  B29C64/124 ,  B29C64/194 ,  B29C64/245 ,  B29L31/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y80/00

CPC classification number: B29C51/30 ,  A61C7/08 ,  B29C33/3842 ,  B29C64/194 ,  B33Y40/00 ,  B33Y80/00 ,  B29C64/124 ,  B29C64/245 ,  B29L2031/753 ,  B29L2031/757 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method of making a plurality of polymer dental appliances, including the steps of: (a) additively manufacturing a plurality of hollow molds from a polymerizable resin, each mold having an external surface portion configured in the shape of a dental arch and a bottom portion having a hollow cavity therein, and with the additively manufacturing step carried out with the plurality of hollow molds formed on a build platform; (b) centrifugally separating residual resin from both the external surface portion and the bottom portion (including the hollow cavity) of each mold; (c) further curing, concurrently or sequentially, the external surface portion and the bottom portion of each mold with ultraviolet light; then (d) thermoforming a thermoplastic polymer sheet on each hollow mold external surface portion to produce the plurality of polymer dental appliances; and (e) separating the plurality of polymer dental appliances from the plurality of hollow molds.