发明名称 |
Microcapsule emulsion and method for producing the same |
摘要 |
Provided are a microcapsule emulsion which can release almost all the amount of a biological active substance comprised therein at a constant release rate over a prolonged period, and a method for producing the same. More specifically, provided is the microcapsule emulsion comprising an emulsion particle formed by emulsion polymerization of a total amount of 15 to 90 parts by weight of a first monofunctional alkyl (meth)acrylate ester and a first multifunctional (meth)acrylate ester in the presence of 100 parts by weight of a biological active substance; and a coated layer on the emulsion particle, the layer being formed by emulsion polymerization of a total amount of 20 to 200 parts by weight of a second monofunctional alkyl (meth)acrylate ester and a second multifunctional (meth)acrylate ester in the presence of the emulsion particle; wherein difference in carbon numbers between an alkyl group of the first monofunctional alkyl (meth)acrylate ester and an alkyl group of the second monofunctional alkyl (meth)acrylate ester is from 3 to 17. |
申请公布号 |
ZA200505023(B) |
申请公布日期 |
2006.04.26 |
申请号 |
ZA20050005023 |
申请日期 |
2006.04.26 |
申请人 |
SHIN-ETSU CHEMICAL CO., LIMITED;NISSIN CHEMICAL INDUSTRY CO., LTD |
发明人 |
HIROSHI YOKOYAMA;KOUJI KINOSHITA;TAKEHIKO FUKUMOTO;RYUICHI SAGUCHI;TATSUYA HOJO;TOSHIMI KOBAYASHI;KINYA OGAWA |
分类号 |
A01N;A01N25/28;B01J13/14 |
主分类号 |
A01N |
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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