US20090012064A1 - Compositions controlling pH range of release and/or release rate - Google Patents

Compositions controlling pH range of release and/or release rate Download PDF

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Publication number
US20090012064A1
US20090012064A1 US12/222,213 US22221308A US2009012064A1 US 20090012064 A1 US20090012064 A1 US 20090012064A1 US 22221308 A US22221308 A US 22221308A US 2009012064 A1 US2009012064 A1 US 2009012064A1
Authority
US
United States
Prior art keywords
release
compound
c1
polymer
ph range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/222,213
Inventor
Kazuyoshi Sagara
Tomoyuki Omura
Hirofumi Samemoto
Hirotsugu Komatsu
Original Assignee
Kazuyoshi Sagara
Tomoyuki Omura
Hirofumi Samemoto
Hirotsugu Komatsu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2000182293 priority Critical
Priority to JP182293/2000 priority
Priority to PCT/JP2001/005151 priority patent/WO2001095912A1/en
Priority to US10/319,568 priority patent/US20030130268A1/en
Application filed by Kazuyoshi Sagara, Tomoyuki Omura, Hirofumi Samemoto, Hirotsugu Komatsu filed Critical Kazuyoshi Sagara
Priority to US12/222,213 priority patent/US20090012064A1/en
Publication of US20090012064A1 publication Critical patent/US20090012064A1/en
Application status is Abandoned legal-status Critical

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