Invention Grant
- Patent Title: Particles with improved colour shielding
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Application No.: US16542408Application Date: 2019-08-16
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Publication No.: US11596582B2Publication Date: 2023-03-07
- Inventor: Kai Rist , Annette Schmidt , Ahmad Shaaban
- Applicant: Ivoclar Vivadent AG
- Applicant Address: LI Schaan
- Assignee: Ivoclar Vivadent AG
- Current Assignee: Ivoclar Vivadent AG
- Current Assignee Address: LI Schaan
- Agent Ann M. Knab; Thad McMurray
- Priority: EP18193477 20180910
- Main IPC: A61K6/17
- IPC: A61K6/17 ; A61K6/88 ; A61K6/84 ; A61K6/871 ; A61K6/16 ; A61K6/71 ; H01F1/00 ; A61K6/831 ; A61K6/884 ; C09C1/00
Abstract:
The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.
Public/Granted literature
- US20200078271A1 Particles With Improved Colour Shielding Public/Granted day:2020-03-12
Information query
