Method for the production of colored osb plates
AssigneeBASF SE
InventorsJuliane Kruesemann, Manfred Siegler, Andreas Stohr
Life of this patent
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Abstract
A process for producing colored oriented strand board, which comprises the wood strands which serve as a base material for oriented strand board being contacted, before or after-drying, with a liquid colorant preparation, then conventionally resinated, and formed into three-layered mats and these three-layered mats being hot-pressed into board having a center layer and two outside layers.
Claims18
1-9. (canceled)
A process for producing a colored, oriented strand board comprising:
- contacting the wood strands which serve as a base material for at least one of the three layers of the oriented strand board with a liquid colorant preparation which comprises at least one pigment and at least one dye;
- resinating and forming said wood strands into a three-layered mat;
- and
- hot-pressing said three-layered mat into said colored, oriented strand board comprising a center layer and two outside layers, wherein said wood strands serve as a base material for said colored, oriented strand board.
An oriented strand board colored with a colorant preparation which comprises at least one pigment and, based on the pigment, from 0.5% to 10% by weight of at least one dye.
Dependencies are inferred from the claim text.