Aqueous polymer dispersions as binders for non-blocking scratch-resistant and chemical-resistant coatings
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United States of America Patent
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Jan 21, 1997
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N/A
app pub date -
Nov 10, 1994
filing date -
Nov 30, 1993
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Abstract
Autocrosslinking aqueous dispersions characterized by an MFT of from 0.degree. to about 50.degree. C. include at least one carbonyl-containing soft latex polymer having an MFT of below about 20.degree. C., at least one hard latex polymer having an MFT of above about 25.degree. C., and at least one polyfunctional carboxylic hydrazide. The aqueous polymer dispersions are used as binders for non-blocking, scratch-resistant and chemical-resistant coatings and as binders for clear coat and pigmented coating systems.
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