发明名称 |
processo de revestimento de microesfera sobre um material flexível |
摘要 |
The invention relates to a method for coating polymer microspheres laden with one or more active substances onto a flexible material without melting, comprising the following steps: a) selecting a porous crosslinked polymer; b) incorporating a liquid lipophilic composition at room temperature and containing at least one active substance into the polymer by heating at a temperature higher by 1 to 5° C. than the glass transition temperature of the polymer in order to obtain laden microspheres; c) placing the laden microspheres on the flexible material; d) heating the flexible material with the laden microspheres at a temperature higher by 1 to 10° C. than the polymer melting temperature; e) cooling the flexible material impregnated with the laden microspheres. The coated flexible material of the invention is laden with one or more active substances having a therapeutic, dermatological cosmetic or olfactory effect and the diffusion is controlled on the basis of the polymers used for making the microspheres and on the nature of the active substances. |
申请公布号 |
BRPI1007978(A2) |
申请公布日期 |
2016.03.01 |
申请号 |
BR2010PI07978 |
申请日期 |
2010.01.27 |
申请人 |
AB7 INNOVATION |
发明人 |
JEAN-PIERRE LAUTIER;RENÉ CHELLE;URBAIN MAKOUMBOU |
分类号 |
A41D31/00;A61K9/52;A61K9/70;A61P3/00;A61P17/00;A61Q13/00;A61Q15/00;A61Q19/06;D06M15/19;D06M23/08;D06M23/12 |
主分类号 |
A41D31/00 |
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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