公开(公告)号：US20180333337A1

公开(公告)日：2018-11-22

申请号：US15981980

申请日：2018-05-17

Applicant: SHOFU INC.

Inventor： Toshio KITAMURA ,  Masahiro KAZAMA

IPC: A61K6/033 ,  A61K6/02

CPC classification number: A61K6/033 ,  A61C13/20 ,  A61K6/0215 ,  A61K6/0662

Abstract: To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.