Polymer composition for thin coatings
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United States of America
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Mar 18, 2025
Grant Date -
Jul 21, 2022
app pub date -
Jun 5, 2020
filing date -
Jun 5, 2020
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Abstract
The present application relates to a resin or polymer system suitable for two-component compositions, and a resin or polymer system configured for durable coatings with only thin coating weights. The resins and polymer systems of this invention provide high performance extremely thin, low gloss coatings with excellent adhesion, abrasion, scratch and chemical resistance The resins include a polyester component with one or more polyester polyols having a hydroxyl value of about 50 to about 300 and a polyurea component with one or more polyester polyol grafted polyurea polymers having a hydroxyl value of about 20 to about 100. These resin or polymer systems and two-component solvent borne coating compositions including such resin or polymer systems are surprisingly capable of achieving strong adhesion, excellent linear abrasion, and high chemical resistance all at the same time in a dry film thickness of about 2 mil or less, in some instances, about 1.2 mils or less, and in other instances, even about 1 mil or less.
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