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MEDICAMENT DE FORME MULTICOUCHE
专利权人:
ROEHM GMBH
发明人:
PETEREIT, HANS-ULRICH,MEIER, CHRISTIAN
申请号:
CA2570277
公开号:
CA2570277C
申请日:
2005.05.18
申请国别(地区):
CA
年份:
2013
代理人:
摘要:
The invention relates to a medicament in a multilayer form, containing a) acore with a pharmaceutical agent, b) an inner coating, 50 to 95 percent byweight of which are composed of a (co)polymer comprising 95 to 100 percent byweight of radically polymerized vinylic monomers with neutral side groups and0 to 5 percent by weight of monomers with anionic side groups, c) an outercoating made of a copolymer comprising 75 to 95 percent by weight of radicallypolymerized C1 to C4 alkyl esters of acrylic acid or methacrylic acid and 5 to25 percent by weight of (meth)acrylate monomers with an anionic group in thealkyl radical. Said medicament further contains 5 to 30 percent by weight ofcommon pharmaceutical auxiliaries, particularly emollients. The inventivemedicament is characterized in that the inner coating contains 5 to 50 percentby weight of common pharmaceutical auxiliaries which are no expanding agentswhile the amount of expanding agents provided is less than 5 percent by weight.
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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