发明名称 |
Delivery system for an active substance |
摘要 |
A delivery system for an active substance, comprises a substrate 2 on which the substance is loaded for subsequent release, wherein: (i) the substrate has been at least partially coated with a polymer 3 using plasma deposition (preferably pulsed plasma deposition); (ii) the active substance is present as a guest molecule within a cyclodextrin inclusion complex 1; and (iii) the inclusion complex is bound to the polymer through a chemical linkage to formed between a hydroxyl group on the cyclodextrin and a functionalgroup on the polymer. The system may be used to control the release of an active substance such as a perfume from a substrate such as a textile. Also provided are methods for preparing (a) the delivery system and (b) a functionalised substrate for use as part of the system, in which the polymer is suitably reacted with a cyclodextrin using an SN2 nucleophilic substitution reaction, in particular a Williamson ether synthesis reaction.
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申请公布号 |
GB2490782(B) |
申请公布日期 |
2013.12.04 |
申请号 |
GB20120007822 |
申请日期 |
2012.05.04 |
申请人 |
SURFACE INNOVATIONS LIMITED |
发明人 |
JAS PAL SINGH BADYAL;WAYNE CHRISTOPHER EDWARD SCHOFIELD;SUZANNE MORSCH |
分类号 |
A61Q13/00;A61K8/73;A61K47/48;C08B37/00;C08L5/16 |
主分类号 |
A61Q13/00 |
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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