AQUEOUS DISPERSIONS OF CATIONIC FILM-FORMING POLYURETHANES
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Apr 23, 2009
filing date -
Apr 24, 2008
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Abandoned
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Abstract
Stable aqueous dispersions of film-forming cationic polyurethanes are prepared by extending with water or amines a cationic prepolymer obtained from aliphatic diisocyanates, aliphatic tertiary amines having two hydroxyl groups that react with —NCO groups, linear polyols and methanesulfonic acid.
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