Aqueous dispersed acrylic grafted epoxy polyester protective coatings
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United States of America Patent
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Mar 1, 1994
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app pub date -
Jun 11, 1993
filing date -
Jun 11, 1993
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Abstract
An aqueous dispersed, low VOC coating containing a polymeric binder comprises an addition copolymer grafted epoxy polyester terpolymer. The graft terpolymer comprises by weight between 1% and 70% unsaturated polyester, 5% and 80% epoxy resin, and 5% and 70% addition copolymer, where the terpolymer has an Acid Number above about 30 and is dispersed into water with a volatile base.
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