公开(公告)号：US11414340B2

公开(公告)日：2022-08-16

申请号：US16148033

申请日：2018-10-01

Applicant: SHOFU INC.

Inventor： Kazuki Yamamoto ,  Daisuke Takeuchi

IPC: C03C10/04 ,  C03C10/02 ,  C03C10/00 ,  C03C3/095 ,  C03C4/00 ,  C03C3/097 ,  A61K6/833

Abstract: To provide An Al2O3-free dental lithium silicate glass composition comprising the following components:
SiO2: 60.0 to 80.0% by weight
Li2O: 10.0 to 17.0% by weight
K2O: 0.5 to 10.0% by weight
a nucleating agent: 1.0 to 6.0% by weight
a colorant: 0.0 to 10.0% by weight, and,
a metal oxide Me(tetravalent)O2: 5.0 to 10.0% by weight.

公开(公告)号：US10391039B2

公开(公告)日：2019-08-27

申请号：US15475494

申请日：2017-03-31

Applicant: SHOFU INC.

Inventor： Daisuke Takeuchi ,  Mitsuji Teramae

IPC: C03C3/097 ,  C03C3/076 ,  C03C10/04 ,  A61K6/027 ,  A61K6/02 ,  A61C5/77 ,  C03B32/02 ,  C03C4/00 ,  A61K6/00

Abstract: To provide a dental lithium silicate glass composition capable of providing a dental lithium silicate glass ceramic capable of efficiently precipitating the main crystals (lithium disilicate and/or lithium metasilicate) even after heat treatment.To provide a Al2O3-free dental lithium silicate glass composition including the following components: SiO2: 60.0 to 80.0% by weight, Li2O: 10.0 to 17.0% by weight, K2O: 0.5 to 10.0% by weight, ZrO2: 0.0 to 5.0% by weight, a nucleating agent: 1.0 to 6.0% by weight, a glass stabilizer: 0.0 to 8.0% by weight and a colorant: 0.0 to 10.0% by weight.