公开(公告)号：US09198837B2

公开(公告)日：2015-12-01

申请号：US14037698

申请日：2013-09-26

Applicant: GC CORPORATION

Inventor： Daizaburo Mori ,  Emiko Fukushima ,  Haruhiko Horiuchi

IPC: A61K6/00 ,  C04B11/00 ,  A61K6/10 ,  A61K6/06 ,  C04B103/40 ,  C04B103/50

CPC classification number: A61K6/0088 ,  A61K6/0625 ,  A61K6/10 ,  C04B11/00 ,  C04B2103/402 ,  C04B2103/50

Abstract: The invention provides a dental gypsum-bonded investment material powder which can inhibit air bubbles from being generated in a mixed material, only by being mixed with water without using any special device or tool, and is easily mixed with the water. A specific siloxane is blended at a specific amount in relation to the dental gypsum-bonded investment material powder which includes an anionic surfactant and is excellent in a mold releasing action. In other words, the dental gypsum-bonded investment material powder is structured such as to have 0.001 to 0.2 weight % anionic surfactant, and 0.00001 to 0.0005 weight % cyclic siloxane having 3 to 10 SiO(CH3)2 units.

Abstract translation: 本发明提供了一种可以抑制气泡在混合材料中产生的牙石膏结合的投料材料粉末，只要通过与水混合而不使用任何特殊的装置或工具，并且容易与水混合。 相对于包含阴离子表面活性剂的牙石膏结合的投料材料粉末，特定的硅氧烷以特定量配合，脱模作用优异。 换句话说，牙膏结合的投料材料粉末的结构为具有0.001至0.2重量％的阴离子表面活性剂和0.00001至0.0005重量％的具有3至10个SiO（CH 3）2单元的环状硅氧烷。

公开(公告)号：US20140296369A1

公开(公告)日：2014-10-02

申请号：US14228676

申请日：2014-03-28

Applicant: GC Corporation

Inventor： Daizaburo MORI ,  Emiko Fukushima ,  Haruhiko Horiuchi

IPC: A61K6/083

CPC classification number: A61K6/0835 ,  A61K6/0625

Abstract: Provided is a dental gypsum powder having flowability, setting time, and strength of a set material that are suitable for producing a dental model. The dental gypsum powder contains 100 parts by weight of gypsum hemihydrate, 2 to 4 parts by weight of gypsum dihydrate, from 0.5 to 3 parts by weight of potassium sulfate, from 0.05 to 0.8 parts by weight of a polycarboxylate water reducing agent, and not contain more than 0.3 parts by weight of other additives. It is preferred that the amount of the polycarboxylate water reducing agent is from 0.15 to 0.3 parts by weight per 100 parts by weight of gypsum hemihydrate, and the amount of the potassium sulfate is from 25% by weight to the same amount of the amount of the gypsum dihydrate.

Abstract translation: 本发明提供一种具有流动性，凝固时间和适合于制造牙科模型的固定材料的强度的牙石膏粉末。 牙膏粉末含有100重量份的石膏半水合物，2至4重量份的石膏二水合物，0.5至3重量份的硫酸钾，0.05至0.8重量份的多羧酸盐减水剂，而不是 含有超过0.3重量份的其他添加剂。 优选多羧酸盐减水剂的量相对于100重量份的石膏半水合物为0.15〜0.3重量份，硫酸钾的量相对于相同量的 石膏二水合物。

公开(公告)号：US09408783B2

公开(公告)日：2016-08-09

申请号：US14228676

申请日：2014-03-28

Applicant: GC Corporation

Inventor： Daizaburo Mori ,  Emiko Fukushima ,  Haruhiko Horiuchi

IPC: A61K6/06 ,  A61K6/083

CPC classification number: A61K6/0835 ,  A61K6/0625

Abstract: Provided is a dental gypsum powder having flowability, setting time, and strength of a set material that are suitable for producing a dental model. The dental gypsum powder contains 100 parts by weight of gypsum hemihydrate, 2 to 4 parts by weight of gypsum dihydrate, from 0.5 to 3 parts by weight of potassium sulfate, from 0.05 to 0.8 parts by weight of a polycarboxylate water reducing agent, and not contain more than 0.3 parts by weight of other additives. It is preferred that the amount of the polycarboxylate water reducing agent is from 0.15 to 0.3 parts by weight per 100 parts by weight of gypsum hemihydrate, and the amount of the potassium sulfate is from 25% by weight to the same amount of the amount of the gypsum dihydrate.

Abstract translation: 本发明提供一种具有流动性，凝固时间和适合于制造牙科模型的固定材料的强度的牙石膏粉末。 牙膏粉末含有100重量份的石膏半水合物，2至4重量份的石膏二水合物，0.5至3重量份的硫酸钾，0.05至0.8重量份的多羧酸盐减水剂，而不是 含有超过0.3重量份的其他添加剂。 优选多羧酸盐减水剂的量相对于100重量份的石膏半水合物为0.15〜0.3重量份，硫酸钾的量相对于相同量的 石膏二水合物。

公开(公告)号：US20140083326A1

公开(公告)日：2014-03-27

申请号：US14037698

申请日：2013-09-26

Applicant: GC CORPORATION

Inventor： Daizaburo MORI ,  Emiko Fukushima ,  Haruhiko Horiuchi

IPC: A61K6/00

CPC classification number: A61K6/0088 ,  A61K6/0625 ,  A61K6/10 ,  C04B11/00 ,  C04B2103/402 ,  C04B2103/50

Abstract: The invention provides a dental gypsum-bonded investment material powder which can inhibit air bubbles from being generated in a mixed material, only by being mixed with water without using any special device or tool, and is easily mixed with the water. A specific siloxane is blended at a specific amount in relation to the dental gypsum-bonded investment material powder which includes an anionic surfactant and is excellent in a mold releasing action. In other words, the dental gypsum-bonded investment material powder is structured such as to have 0.001 to 0.2 weight % anionic surfactant, and 0.00001 to 0.0005 weight % cyclic siloxane having 3 to 10 SiO(CH3)2 units.

Abstract translation: 本发明提供了一种可以抑制气泡在混合材料中产生的牙石膏结合的投料材料粉末，只要通过与水混合而不使用任何特殊的装置或工具，并且容易与水混合。 相对于包含阴离子表面活性剂的牙石膏结合的投料材料粉末，特定的硅氧烷以特定量配合，脱模作用优异。 换句话说，牙膏结合的投料材料粉末的结构为具有0.001至0.2重量％的阴离子表面活性剂和0.00001至0.0005重量％的具有3至10个SiO（CH 3）2单元的环状硅氧烷。