Active-methylene functionalized latex polymer prepared in the presence of a hydrophilic isoprene sulfuric acid polymer, and sheet material comprising same
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United States of America Patent
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May 29, 2001
Grant Date -
N/A
app pub date -
Nov 10, 1998
filing date -
Nov 13, 1997
priority date (Note) -
Expired
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Abstract
A latex is prepared by polymerizing a polymerizable monomer having an active methylene group in the presence of a hydrophilic polymer. The hydrophilic polymer comprises an isoprene sulfonic acid or salts thereof as a monomer unit. A sheet material is prepared having a support with a hydrophilic layer containing the latex thereon.
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