Liner/medium/paper/for laminated panel
AssigneeSpectra-Kote Corporation
InventorCharles W. Propst, Jr.
Life of this patent
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Abstract
A laminated panel formed of a paper coated with three layers. The paper can be selected from liner, medium or other paper. The first layer comprises an acrylic containing polymer a clay synthetic polyethylene, a defoamer a cross-linking agent water and optionally a pigment. The second layer comprises a polymethyl methylacrylate polymer a synthetic polyethylene a clay a defoamer and water. A third layer comprises colloidal silica urea water and a defoamer. Composites of the above paper bonded to an expanded polystyrene block are also disclosed.
Claims2
A liner/medium/paper coated with a first layer, a second layer, and a third layer,
- wherein the first layer comprises from 21 to 39% by weight of an acrylic containing polymer;
- from 28 to 52% by weight of a water-based polymer from 11.9 to 22.1% by weight clay powder;
- from 1.4 to 2.6% by weight synthetic polyethylene;
- from 0.35 to 0.65% by weight of a defoamer;
- from 2.1 to 3.9% by weight of a cross-linking agent;
- from 5.25 to 9.75% by weight of water;
- and optionally from 1.47 to 2.73% by weight pigment,
- wherein the second layer comprises from 53.2 to 98.8% by weight PMMA;
- from 0.35 to 0.65% by weight synthetic PE;
- from 12.6 to 23.4% by weight clay powder;
- from 0.35 to 0.65% by weight defoamer;
- and from 3.5 to 6.5% by weight water, and
- wherein the third layer comprises from 28 to 52% by weight colloidal silica;
- from 11.9 to 22.1% by weight urea;
- from 30.1 to 55.9% by weight water;
- and from 0.35 to 0.65% by weight defoamer.
Dependencies are inferred from the claim text.