Invention Grant
- Patent Title: Polyaryletherketone resin material for dental use and method of producing resin composite material for dental use
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Application No.: US16463796Application Date: 2017-11-28
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Publication No.: US10993889B2Publication Date: 2021-05-04
- Inventor: Tomonao Shimizu , Junichiro Yamagawa , Yuko Nagasawa
- Applicant: TOKUYAMA DENTAL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TOKUYAMA DENTAL CORPORATION
- Current Assignee: TOKUYAMA DENTAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JPJP2016-239401 20161209
- International Application: PCT/JP2017/042586 WO 20171128
- International Announcement: WO2018/105443 WO 20180614
- Main IPC: A61K6/891
- IPC: A61K6/891 ; A61C5/77 ; A61C13/20 ; A61C13/087 ; C08L71/10 ; A61K6/17 ; A61K6/76 ; A61K6/78 ; C08L81/02

Abstract:
A polyaryletherketone resin material is provided for dental use having high color tone stability in the case of exposure to visible light. The polyaryletherketone resin material for dental use includes a polyaryletherketone resin, which is a thermoplastic resin containing at least an aromatic group, an ether group (ether bond), and a ketone group (ketone bond) in its structural unit, and having a b* value of 10.0 or more in terms of colorimetric value of a 1.0 mm molded body in a CIELab color system under a black background condition.
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