Hydrolytically decomposable ionic copolymers
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United States of America Patent
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Jun 30, 2015
Grant Date -
Jun 30, 2011
app pub date -
Apr 9, 2009
filing date -
Apr 14, 2008
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Abstract
The invention at hand provides hydrolytically degradable ionic copolymers. These ionic copolymerizates are composed of one cyclic ketene acetal A, one anionic or cationic methacrylic acid derivative B, selected from 2-methyl-methacrylate, [2-(2-methyl-1-methylene-allyloxy)]ethanesulfonate, [2-(2-methyl-1-methylene-allyloxy)ethyl]phosphonate or a quaternary amine of the N,N-dimethylaminoethylmethacrylic acid (DMAEMA) and, optionally, a neutral methacrylic acid derivative C.
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