US Patent 7094810 pH-sensitive block copolymers for pharmaceutical compositions
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Patent abstract
The present invention relates to a pharmaceutical composition of a biologically active agent and a block copolymer composed of a poly(ethylene oxide) forming hydrophilic segment and a poly(butyl (alkyl)acrylate-co-(alkyl)acrylic acid) that is capable of forming supramolecular assemblies or micelles under favourable conditions. The supramolecular assemblies or micelles formed from said polymers associate or dissociate reversibly upon changes in the environmental pH. The pharmaceutical compositions of the present invention contain hydrophobic drugs, cations or polycationic compounds, which can be delivered to the body by oral route or other routes of administration.
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US Patent 07094810 pH-sensitive block copolymers for pharmaceutical compositions US Patent 7094810 pH-sensitive block copolymers for pharmaceutical compositions
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Patent Number
0709481000
Patent Number
709481000
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Patent Jurisdiction
Patent Number
070948100
Date of Patent
August 22, 2006
0Patent Application Number
106074460
Date Filed
June 25, 2003
0Official Website
Patent Primary Examiner
Edits on 25 Sep, 2022
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Patent Jurisdiction
Patent Number
070948100
Date of Patent
August 22, 2006
0Patent Application Number
106074460
Date Filed
June 25, 2003
0Official Website
Patent Primary Examiner
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US Patent 07094810 pH-sensitive block copolymers for pharmaceutical compositions
Infobox
Is a
Patent jurisdiction
Patent number
07094810
Date of patent
August 22, 2006
Patent application number
10607446
Date Filed
June 25, 2003
Patent primary examiner
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