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carrier for controlled release of an active agent, methods for preparing a carrier, for transporting an active agent, method for controlled release of an active agent, and for protecting heat-sensitive active agents, and use of a carrier
专利权人:
OMYA INTERNATIONAL AG
发明人:
CATHERINE JEAN RIDGWAY,JOACHIM SCHOELKOPF,NICOLA DI MAIUTA,PATRICK A. C. GANE,PATRICK SCHWARZENTRUBER
申请号:
BR112014011310
公开号:
BR112014011310A2
申请日:
2012.11.08
申请国别(地区):
BR
年份:
2017
代理人:
摘要:
The present invention relates to carriers for the controlled release of active agents, comprising a core, comprising surface reacted natural or synthetic calcium carbonate, and at least one active agent, wherein said at least one active agent is associated with said natural or synthetic surface-reacted calcium carbonate, and wherein said surface-reacted natural or synthetic calcium carbonate is a reaction product of natural or synthetic calcium carbonate with carbon dioxide and one or more acids, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an external source, and a coating encapsulating the core. It furthermore relates to the preparation of loaded carriers, as well as their use in different applications.
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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