发明名称 |
Polymeric compositions and methods of producing them |
摘要 |
Release of an active ingredient can be controlled and the active ingredient can be protected from the environment during storage, by distributing it throughout a matrix containing a relatively large amount of polymeric material that is soluble and swellable in aqueous alkali but less soluble and swellable at a lower pH value and which is in the form of a dried oil-in-water emulsion of the polymer or a relatively insoluble partial salt of the polymer with a volatile amine, the full salt of the polymer being relatively soluble. The composition is of particular value for the protection of detergent enzymes.
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申请公布号 |
US5744152(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19950373397 |
申请日期 |
1995.01.17 |
申请人 |
ALLIED COLLOIDS LIMITED |
发明人 |
LANGLEY, JOHN;SYMES, KENNETH CHARLES |
分类号 |
C12N9/98;A01N25/10;A01N25/22;A01N25/28;A01N33/18;A01N43/90;A01N47/30;A01N57/16;A61K9/14;A61K9/16;A61K9/50;A61K47/32;B01J13/10;B01J13/12;C08L33/02;C08L101/00;C09B67/02;C11D3/37;C11D3/386;C11D7/42;C12N11/04;(IPC1-7):A01N25/10 |
主分类号 |
C12N9/98 |
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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