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US 2011/0256322 A1Published application
Low-Gloss Dry-Erase Coating Formulation
AssigneeExopack-Technology, LLC
InventorsMark O'Neil Outlaw, Michael Ray Carter
Life of this patent
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Abstract
An EB (electron beam) or UV (ultra violet) curable, low-gloss, dry-erase coating formulation for static and electronic whiteboards is disclosed. The coating contains an acrylate silica blend, an aliphatic urethane acrylate or a polyester acrylate, a polyfunctional reactive diluent and at least one photoinitiator
Claims29
A low-gloss dry-erase coating formulation comprising a mixture of:
- an acrylate silica blend for reducing gloss by blending silica and by forming an incompatible phase during curing to produce microroughness;
- an acrylate selected from a group consisting of an aliphatic urethane acrylate and a polyester acrylate for enhancing physical properties of the mixture;
- and
- a polyfunctional reactive diluent for increasing crosslink density and the hardness, toughness, and chemical resistance of the surface coated with said mixture, when reacted with other oligomers and monomers of said mixture.
1 more element
A low-gloss dry-erase coating formulation comprising:
- an acrylate silica blend present in the coating formulation in an amount between about 25 and 50 percent by weight;
- an acrylate selected from a group consisting of an aliphatic urethane acrylate and a polyester acrylate present in the coating formulation in an amount between about 5 and 30 percent by weight;
- a polyfunctional reactive diluent present in the coating formulation in an amount between about 25 and 45 percent by weight;
- and
- at least one photoinitiator present in the coating formulation in an amount between about 0.5 and 4.5 percent by weight.
2 more elements
A process for making a low-gloss dry-erase hardcoat comprising:
- applying a low-gloss coating formulation that includes an acrylate silica blend, an acrylate selected from a group consisting of an aliphatic urethane acrylate and a polyester acrylate, a polyfunctional reactive diluent, at least one photoinitiator, a polymeric dispersant, and a solvent on a pre-treated substrate;
- drying said solvent from said coating formulation;
- and
- exposing said coating formulation on said pre-treated substrate to a radiation selected from a group consisting of electron beam and ultra violet radiation.
1 more element
Dependencies are inferred from the claim text.