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US 2026/0217995 A1Published application
Dehazing coatings and method for use
AssigneeSun Chemical Corporation
InventorsMarieanne HURST, Joanne GUITE
Life of this patent
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Abstract
A method for enhancing the transparency of substrates, particularly papers having a degree of translucency, with the use of water-based coatings comprising polysaccharide resins. The invention also relates to a method of heat-sealing said substrates using said polysaccharide resins.
Claims25
1-46. (canceled)
A method of increasing the transparency of a substrate, comprising:
- a) applying a water-based polysaccharide coating to a transparent or translucent paper or plastic substrate to form a coated substrate, wherein the coating comprises 30 to 60 wt % of polysaccharide solids, wherein the polysaccharides are derived from rice and/or corn, 1 to 10 wt % of an organic solvent, and 20 to 60 wt % water;
- wherein the refractive index of the dry coating is within 10% of the substrate;
- wherein refractive index is measured according to the method described in the description;
- and
- wherein the coating is applied by a method selected from flexographic printing or gravure printing.
2 more elements
Dependencies are inferred from the claim text.