发明名称 |
A process for the preparation of a polymeric composition for the controlled release of an active ingredient in response to pH |
摘要 |
<p>The present invention provides a polymer for the controlled release of a pendent chain linked active ingredient, and a process for the preparation of such a polymer for the controlled release of an active ingredient in response to pH. The process involves selecting a vinyl monomer to which the active ingredient molecule is covalently linked through a pendent group, and selecting monomers bearing catalytic groups. The active ingredient-bearing monomer and the catalytic group-containing monomer are brought in juxtaposition either by complexation or molecular imprinting, and then polymerized with a hydrophilic monomer and crosslinker under an inert atmosphere with a suitable polymerization initiator.</p> |
申请公布号 |
IN192400(B) |
申请公布日期 |
2004.04.10 |
申请号 |
IN1096DE1995 |
申请日期 |
1995.06.14 |
申请人 |
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH |
发明人 |
MASHELKAR RAGHUNATH ANANT;KULKARNI MOHAN GOPALKRISHNA;KARMALKAR ROHINI NITIN |
分类号 |
A01N25/10;A61K47/48;(IPC1-7):A61K31/755 |
主分类号 |
A01N25/10 |
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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