公开(公告)号：JPH0796347A

公开(公告)日：1995-04-11

申请号：JP14404894

申请日：1994-06-03

Applicant: BAYER AG

Inventor： PEETAA SHIYUBABE ,  MARUTEIN GURUNBARUTO ,  ROTAA PUTSUPE

IPC: A61C13/20 ,  A61K6/00 ,  A61K6/06 ,  B22C1/00 ,  B22C1/08 ,  B22C9/04

Abstract: PURPOSE: To make it possible to cast metal without the occurrence of efflores cence and without changing good mechanical properties by providing a zeolite- containing compound for investment casting molds. CONSTITUTION: When a copy is made from the compound for investment casting molds, the shell resembling the crystal of the fine salt and the efflorescence arise on the surface of a pattern facing the surface of hydrophobic silicone in particular. The compound for investment casting molds which does not give rise to the efflorescence and does not change the good mechanical properties is obtained by incorporating the zeolite therein. The crystalline alumina silicate made from a net structure of a tetrahedron of SiO4 and M2 O4 is adopted for the zeolite. The compound for investment casting molds is generally used for casting of metal and restoration and duplication of precious metallic members. An adequate field of use is the field of dental techniques of making denture members by using the compound for investment casting molds.

公开(公告)号：JPH02229860A

公开(公告)日：1990-09-12

申请号：JP33141289

申请日：1989-12-22

Applicant: BAYER AG

Inventor： PEETAA SHIYUBABE ,  RAINAA FUOIKUTO ,  OTSUTOFURIITO SHIYURAKU ,  OTSUTOOKURISUCHIYAN GAIYAA

IPC: G02B1/04 ,  C08K5/42 ,  C08L83/02 ,  C08L83/04 ,  C08L83/05 ,  C08L83/07 ,  C09B35/215 ,  C09B56/04 ,  C09K19/60 ,  G02B1/10