Thermal grafts of polyamides with pendant carboxylic acid groups, methods for producing the same, compositions containing the same, and methods of using the same
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United States of America Patent
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Aug 6, 2002
Grant Date -
Jan 31, 2002
app pub date -
Jun 30, 1998
filing date -
Jun 30, 1998
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Expired
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Abstract
Heating an intimate mixture of: (a) a polyamide which contains pendant carboxylic acid groups; and (b) a compound which contains an amino group efficiently affords graft polymers with a high graft density. Such graft polymers are particularly useful as additives for cementitious compositions.
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