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US 2021/0062035 A1Published application
Two-component coating compositions
AssigneeConstruction Research & Technology GmbH
InventorsBurkhard WALTHER, Heimo WOELFLE, Li Yi CHEN, Thierry BUBEL
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Abstract
The present invention relates to a two-component coating composition comprising one first saturated polyhydroxy component, optionally one second saturated polyhydroxy component, wherein the second polyhydroxy compound is different from the first polyhydroxy compound, at least one metal component, water and at least one polyisocyanate. The resulting composition offers excellent scratch resistance, better mechanical properties and good applicability.
Claims26
A two-component coating composition comprising
- (I) Component A comprising
- (i) one first saturated polyhydroxy compound selected from the group consisting of polyether polyol, polyester polyol, C2 to C32 alkyl polyol and sugar alcohol;
- (ii) ≥1 wt. % to ≤50 wt. % of water, based on the total weight of the two-component composition;
- and
- (iii) ≥2 wt. % to ≤50 wt. % of at least one metal component selected from the group consisting of metal oxide, metal hydroxide, metal aluminate and metal silicate, by weight of the total weight of the two-component composition;
- and
- (II) Component B comprising at least one polyisocyanate.
4 more elements
Dependencies are inferred from the claim text.