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COMPOSITION AND DEVICE FOR DELIVERY OF ACTIVE AGENTS TO SKIN SURFACES
专利权人:
Lubrizol Advanced Materials; Inc.
发明人:
Nancy S. Marchant,Thomas Beckert,Jürgen Heinzelmann,Anja Thut,Jochen Stehle,Qiong Tang,Hossein Birjandi Nejad,Mohamed Hussein Ramadan
申请号:
US16756366
公开号:
US20200297654A1
申请日:
2018.10.16
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A transdermal delivery device (10, 10′;) includes at least one of a backing layer (14) and a removable release liner (16). An active layer (12, 12′;) is supported by the backing layer and/or release liner. The active layer includes a polymer matrix, a therapeutically/cosmetically effective amount of an active agent dispersed in the polymer matrix, and a pressure sensitive adhesive, incorporated in the polymer matrix and/or adhered thereto. The polymer matrix includes a thermoplastic polyurethane polymer and optionally, a poly(meth)acrylate polymer. The thermoplastic polyurethane polymer includes the reaction product of: a first polyether polyol A having a molecular weight of at least 3000 daltons and/or a second polyether polyol B having a molecular weight of no more than 2500 daltons; a third polyol C having a molecular weight of up to 800 daltons and/or a chain extender; a polyisocyanate; and optionally a catalyst.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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