公开(公告)号：US11446214B2

公开(公告)日：2022-09-20

申请号：US16762018

申请日：2019-05-10

Applicant: GC CORPORATION

Inventor： Akio Takahashi ,  Takayuki Murata ,  Takumasa Kimura

IPC: A61K6/896 ,  A61C5/00

Abstract: A polymerizable monomer, a filler (A), and a filler (B) are contained, the filler (A) includes an inorganic particle and a compound covering the inorganic particle, the filler (B) includes another inorganic particle and another compound covering the other inorganic particle, and the average particle size of the filler (B) is 20% to 550% of the average particle size of the filler (A).

公开(公告)号：US10918578B2

公开(公告)日：2021-02-16

申请号：US16488673

申请日：2017-12-06

Applicant: GC Corporation

Inventor： Takayuki Murata ,  Takumasa Kimura ,  Yui Tei ,  Azusa Miyagawa

IPC: A61K6/887 ,  A61K6/16 ,  A61K6/17 ,  A61K6/836 ,  C08L33/12 ,  C08L43/04

Abstract: According to one aspect of the present invention, a dental curable composition includes: polymerizable monomers; inorganic particles (A1) and/or inorganic particles (A2) (excluding the inorganic particles (A2); and inorganic particles (B). The inorganic particles (A1) are surface-treated with a compound expressed by a general formula (1) and have a volume-median particle size of greater than or equal to 0.1 μm and less than or equal to 0.9 μm. The inorganic particles (A2) are surface-treated with a compound expressed by a general formula (2) and have a volume-median particle size of greater than or equal to 0.1 μm and less than or equal to 0.9 μm. The inorganic particles (B) are particles where a group expressed by a general formula (A) is present at surfaces, are particles where a group expressed by a general formula (B) is present at surfaces, and/or are particles surface-treated with a compound expressed by a general formula (3) and have an average primary particle size of greater than or equal to 5 nm and less than or equal to 50 nm. A ratio of a mass of the inorganic particles (B) to a total mass of the inorganic particles (A1), the inorganic particles (A2), and the inorganic particles (B) is greater than or equal to 0.001 and less than or equal to 0.015.

公开(公告)号：US10449124B2

公开(公告)日：2019-10-22

申请号：US15749193

申请日：2016-06-29

Applicant: GC Corporation

Inventor： Takayuki Murata ,  Nobuhito Takagi ,  Takayuki Ueno

IPC: A61K6/083 ,  A61K6/00 ,  C08L47/00 ,  C08F20/10

Abstract: A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.