Polymer compounds
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United States of America Patent
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Sep 13, 2005
Issued Date -
N/A
app pub date -
Aug 23, 2000
filing date -
Feb 23, 1999
priority date (Note) -
Expired
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Abstract
Provided is a composition comprising a pre-formed, hydrolytically susceptible non-addition polyanionic polymer comprising polymer strands formed from at least one ethylenically unsaturated monomer and linking the polymer strands by at least one linking moiety comprising a hydrolytically susceptible bond, wherein at least one of which monomers has: i) one or more functional groups that can be titrated with base to form negatively charged functional groups; or ii) one or more precursor groups that are precursors of the functional groups that can be titrated with base; which precursor groups are converted to the functional groups.
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