发明名称 |
INCORPORATION OF FINELY DIVIDED ADDITIVES AT THE SURFACE OF MICROCAPSULE WALLS |
摘要 |
<p>Microcapsules are prepared en masse which contain a substantially waterinsoluble core and, incorporated at their surface under a thin film of hydrophilic polymeric colloid, a substantially water insoluble finely divided additive. In the preparation, a primary microcapsule is made in an aqueous vehicle to surround the water-insoluble core, the finely divided additive is then added under stirring to form a fine dispersion and cationic hydrophilic polymeric colloid solution is added to cause the colloid to envelop the additive and deposit it on the capsule wall under a thin film.</p> |
申请公布号 |
CA1179902(A) |
申请公布日期 |
1984.12.25 |
申请号 |
CA19820400749 |
申请日期 |
1982.04.08 |
申请人 |
EURAND AMERICA, INCORPORATED |
发明人 |
SCARPELLI, JOSEPH A. |
分类号 |
C11D17/08;A01N25/28;A61K8/00;A61K8/11;A61K8/25;A61K8/31;A61K8/65;A61K8/73;A61K8/92;A61Q5/02;B01J13/02;B01J13/10;B01J13/22;C11D7/54;C11D17/06;D06L3/12;(IPC1-7):B01J13/02 |
主分类号 |
C11D17/08 |
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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