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US 5,294,653 AGranted
Three-component water-based varnish for glass for interior use
AssigneeOECE Industrie Chimiche Spa
InventorMauricio Colucci
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Abstract
Water-based varnish for glass prepared by mixing, just before use, the following basic components: component A: aqueous dispersion of an acrylic polymer containing hydroxy functional groups, component B: trialkoxysilane containing an epoxy functional group, component C: zirconium and ammonium double carbonate containing ZrO.sub.2 (+HfO.sub.2) (19% to 20% by wt.), in the form of an aqueous solution, components B and C in the mixture amounting to 3 and 2 parts by wt., respectively, per 100 parts by wt. of A.
Claims4
Water-based varnish for glass obtained by mixing, just before use, the following essential components:
- Component A:
- aqueous dispersion of acrylic polymer containing hydroxy functional groups (0.8 to 1.2 wt.-% on dry polymer basis), mixed with a lower amount of polyurethane resin produced from aliphatic polyisocyanate as well as with the conventional additives selected from:
- surfactants, antifoam and thickening agents, pigments, extenders, the acrylic polymer concentration ranging from 15% and 18% by weight of the total.
- Component B:
- trialkoxysilane containing epoxy functional groups.
- Component C:
- zirconium and ammonium double carbonate containing ZrO.sub.2 (+HfO.sub.2) (19% to 20% by weight) in the form of an aqueous solution,
- components B and C amounting to 3 and 2 parts by weight, respectively, per 100 parts by weight of component A.
5 more elements
Dependencies are inferred from the claim text.