Piperidone functionalized poly(vinyl alcohol)
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United States of America Patent
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Aug 1, 2000
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N/A
app pub date -
Jul 21, 1998
filing date -
Jul 21, 1998
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Expired
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Abstract
A family of piperidone functionalized polymers based on polymers containing a plurality of hydroxyl groups. Piperidone or piperidone derivatives form a cyclic ketal linkage with hydroxyl groups contained on adjacent or alternating carbon atoms of the base polymer. Preferred compositions are piperidone functionalized poly(vinyl alcohol) having the following general formulae: ##STR1## wherein R.sub.1 through R.sub.6 are each independently hydrogen, methyl, or a C.sub.2 to C.sub.4 saturated or unsaturated alkyl groups, R.sub.7 is O.cndot. or OR.sub.8, wherein R.sub.8 is hydrogen or a C.sub.1 to C.sub.4 alkyl or C(.dbd.O)alkyl group; X.sup.- is a salt; x ranges from 50 to 99 mol %; y ranges from 0 to 30 mol %; and z ranges from 1 to 20 mol %. The compounds are useful in ink jet paper coating applications.
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