公开(公告)号：US20220387263A1

公开(公告)日：2022-12-08

申请号：US17692584

申请日：2022-03-11

Applicant: SHOFU INC.

Inventor： Naoya KITADA ,  Rei NISHIMURA ,  Daisuke HARA ,  Kenzo YAMAMOTO

IPC: A61K6/896 ,  A61K6/62 ,  A61K6/76 ,  A61K6/17

Abstract: To provide a dental photocurable composition having good storage stability of a matrix containing a polymerizable monomer and a polymerization initiator, etc. and excellent mechanical strength of a dental photocurable composition comprising a mixture of the matrix and a filler. The dental photocurable composition of the present disclosure comprises a matrix containing (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator and (D) photopolymerization accelerator, and (E) filler, wherein, the dental photocurable composition comprises (A1) polymerizable monomer having an acidic group as the (A) polymerizable monomer, and the dental photocurable composition comprises (D1) tertiary aliphatic amine compound having Log P of 2 or more and pKa of 10 or less as the (D) photopolymerization accelerator.

公开(公告)号：US20210205181A1

公开(公告)日：2021-07-08

申请号：US17032335

申请日：2020-09-25

Applicant: SHOFU INC.

Inventor： Naoya KITADA ,  Rei NISHIMURA ,  Hiroyuki KOBAYASHI ,  Kenzo Yamamoto

IPC: A61K6/30 ,  C08L33/10 ,  C08L81/08 ,  C08K5/5419

Abstract: To provide one liquid type dental adhesive composition that exhibits excellent adhesive property to glass ceramics, oxide-base ceramics and tooth substance, and has excellent storage stability, which are contrary features. One liquid type dental adhesive composition contains (a) silane coupling agent represented by general formula (1), (b) acidic group-containing polymerizable monomer, (c) volatile organic solvent, and (d) water. (In the formula, R1 represents an organic group having at least one functional group selected from the group consisting of a (meth)acryloyl group, a vinyl group and an epoxy group, R2 represents C4-C8 linear alkyl group, R3 represents C1-C8 alkyl group, and n is integer selected from 1 to 3.)

公开(公告)号：US20200214819A1

公开(公告)日：2020-07-09

申请号：US16575867

申请日：2019-09-19

Applicant: SHOFU INC.

Inventor： Daisuke HARA ,  Naoya KITADA ,  Kenzo YAMAMOTO ,  Yasuhiro NISHINO ,  Yoshiyuki JOGETSU

IPC: A61C19/10

Abstract: [Problem]To select a dental cement or a trial test material for easily obtaining high color tone adaptability to peripheral tooth substances, in mounting of or trial test of a prosthesis device[Solution]To provide a dental cement set consisting of a plurality of dental cements having color tones including color tones of 3 to n colors for selecting and using a dental cement from the plurality of dental cements having the color tones including the color tones of the 3 to n colors after trial test with trial test materials for the dental cement to be used from the plurality of dental cements having the color tones including the color tones of the 3 to n colors, wherein: the amount of information loss Pin with regard to first principal component determined by principal component analysis is less than 2, and . the dental cement set satisfies following Formula 1. 2≤((CL*p−1−CL*p)2 +(Ca*p−1−Ca*p)2 +(Cb*p−1−Cb*p)2)1/2

公开(公告)号：US20170071831A1

公开(公告)日：2017-03-16

申请号：US15264968

申请日：2016-09-14

Applicant: SHOFU INC.

Inventor： Daisuke HARA ,  Naoya KITADA

IPC: A61K6/00 ,  C09J4/00

CPC classification number: A61K6/0029 ,  A61K6/00 ,  A61K6/0023 ,  A61K6/083 ,  C09J4/00 ,  C08L33/08 ,  C08L33/10 ,  C08L33/12

Abstract: A primer composition for a resin cured material according to the present disclosure comprising (A) a polymerizable monomer having a solubility parameter (an SP value) in the range of from 7.0 to 10.0, (B) a volatile organic solvent, (C) a polymerization catalyst and/or a polymerization accelerator, and (D) a polymerizable monomer having at least two polymerizable group.

Abstract translation: 根据本公开的用于树脂固化材料的底漆组合物，其包含（A）溶解度参数（SP值）在7.0至10.0范围内的可聚合单体，（B）挥发性有机溶剂，（C） 聚合催化剂和/或聚合促进剂，和（D）具有至少两个可聚合基团的可聚合单体。

公开(公告)号：US20220023155A1

公开(公告)日：2022-01-27

申请号：US17211039

申请日：2021-03-24

Applicant: SHOFU INC.

Inventor： Kenzo YAMAMOTO ,  Daisuke HARA ,  Yasuhiro NISHINO ,  Naoya KITADA

IPC: A61K6/30 ,  C09J183/04 ,  C09J133/26

Abstract: [Problem]
To provide a dental adhesive composition realizing excellent durable adhesive strength with respect to various dental restorative materials for cutting and machining such as glass ceramics containing lithium disilicate, a dental resin for cutting and machining, and a dental resin for cutting and machining made of a glass fiber reinforced resin in particular and with respect to a tooth substance, and having excellent storage stability simultaneously.
[Solution]
The dental adhesive composition of the present invention comprises a matrix containing (A1) silane coupling material represented by structural formula of [Chemical formula 1], (B) polymerizable monomer having an acidic group and (C) polymerizable monomer having no acidic group, and wherein the (C) polymerizable monomer having no acidic group contains (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups, the (A1) silane coupling material represented by structural formula of [Chemical formula 1] and the (C1) polymerizable monomer having no acidic group and having one or more hydroxyl groups coexist in at least one matrix, and the dental adhesive composition satisfies at least one of following formulas (1) and (2). 0.005≤Total amount of silane coupling material compounding amount index in matrix ((S1×W1)/M1)≤0.070   [Formula (1)] 0.001≤Total amount of silane coupling material compounding amount index in composition ((S2×W2)/M2)≤0.015   [Formula (2)]

公开(公告)号：US20190262238A1

公开(公告)日：2019-08-29

申请号：US16205396

申请日：2018-11-30

Applicant: SHOFU INC.

Inventor： Daisuke HARA ,  Naoya KITADA ,  Toshiyuki NAKATSUKA

IPC: A61K6/00 ,  A61K6/08

Abstract: To provides a polymerizable composition having high storage stability and high color stability. To provide a two-paste type dental polymerizable composition of the present invention is a two-paste type dental polymerizable composition comprising a first paste containing (A) at least one kind of polemerizable monomer, an (B) organic peroxide as a chemical polymerization initiator, and a (C) basic filler, and a second paste containing (A) at least one kind of polemerizable monomer, a (C) basic filler and an (D) aromatic amine compound as a chemical polymerization accelerator, wherein the second paste contains 30 to 80 parts by weight of the (C) basic filler based on 100 parts by weight of the total amount of the second paste.