发明名称 |
AMORPHOUS SILICA-ALUMINA SPHERICAL PARTICLES AND PROCESS FOR PREPARATION THEREOF |
摘要 |
Disclosed are amorphous silica-alumina spherical particles having a notched surface. The particles have a small specific surface area and a highly controlled hygroscopic property. The spherical particles are obtained by exchanging at least a part of an alkali metal ion of a P-type zeolite as the starting material with a divalent metal and firing the ion-exchanged zeolite. Since the pH value is shifted to a weakly alkaline level by the ion exchange treatment, the particles are effective as a filler for stabilizing a resin or the like when incorporated therein, and the refractive index of the particles can be made close to that of a resin in which the particles are to be incorporated. |
申请公布号 |
CA2011038(A1) |
申请公布日期 |
1990.08.31 |
申请号 |
CA19902011038 |
申请日期 |
1990.02.27 |
申请人 |
MIZUSAWA INDUSTRIAL CHEMICALS, LTD. |
发明人 |
OGAWA, MASAHIDE;ABE, KIYOSHI;SUZUKI, KAZUHIKO;OGAWA, HIROSHI |
分类号 |
A61K8/26;A61Q1/02;A61Q11/00;C01B33/26;C01B33/44;C01B39/46;C08K3/22;C08K3/34;C09C1/28;C09C1/40;C09C1/42;D21H17/68 |
主分类号 |
A61K8/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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