High molecular weight, homogeneous, branched copolymers of maleic anhydride and alkyl vinyl ether monomers
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United States of America Patent
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Jun 26, 2001
Grant Date -
Apr 12, 2001
app pub date -
Dec 6, 2000
filing date -
Mar 5, 1999
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Abstract
What is described is a high molecular weight homogeneous, branched copolymer of maleic anhydride and a C.sub.1 -C.sub.5 alkyl vinyl ether monomer, in which a branching agent is present in an amount of less than 0.5 wt. % of the polymer. A solution process of making such polymer also is described.
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