发明名称 |
Colourants encapsulated in polymer matrix |
摘要 |
Polymeric particles comprising a polymeric matrix and colourant distributed throughout the matrix, wherein the polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., and in which the first monomer is a salt of a volatile counterion component, characterized in that the polymeric matrix is impermeable to the colourant The particles obtainable by the process of the invention can be used in a variety of industrial processes, for instance in the manufacture of inks, paper and cosmetics.
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申请公布号 |
US7648715(B2) |
申请公布日期 |
2010.01.19 |
申请号 |
US20030475480 |
申请日期 |
2003.10.20 |
申请人 |
CIBA SPECIALTY CHEMICALS WATER TREATMENTS LTD. |
发明人 |
MISTRY KISHOR KUMAR;SYMES KENNETH CHARLES;PRESTON JANINE ANDREA |
分类号 |
A61K9/14;C08J3/12;C08L57/00;C09B67/00;C09B67/02;C09B67/08 |
主分类号 |
A61K9/14 |
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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