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US 9,539,795 B2Granted
Matte substrate
AssigneeAshland Licensing and Intellectual Property LLC
InventorsDennis J. Oscar, Charles J. Wasserman
Life of this patent
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Abstract
Matte substrates comprising a water based coating composition and a base substrate. The water based coating composition comprises either no or only small amounts of mineral filler, refractory filler and/or organic filler and no other matting agents. The water based coating composition is typically applied to the base substrate at a coating weight of less than or equal to about 3 dry pounds of the water based coating composition per about 3,000 square feet of the base substrate. The matte substrate generally has a 60° gloss less than about 20.
Claims18
A matte substrate comprising
- a) a dried film formed from a water based coating composition comprising
- a water base consisting of the combination of (a) a polyurethane dispersion, wherein the polyurethane dispersion comprises a water based aliphatic urethane, carboxyl or sulfonate functionality and less than about 2% N methyl pyrrolidone and (b) a binder comprising an acrylic resin;
- and
- one or more cross-linking agents;
- and
- b) a base substrate having a thickness of about 0.02 mil to about 25 mil selected from the group consisting of polyamide, polyester, polypropylene, polyethylene, polyvinyl chloride, styrene, foil, paper, paperboard and combinations thereof, wherein the matte substrate has a 60° gloss less than about 20;
- wherein part a) is absent the addition of a mineral filler, refractory filler, organic filler, or combinations thereof.
4 more elements
Dependencies are inferred from the claim text.