3639200 is referenced by 48 patents and cites 6 patents.

The invention relates to a ligno-cellulosic building board having a nonrepetitive textured surface on at least one side. This side consists of a layer of ligno-cellulosic particles with elevations and depressions, the specific gravity of the particles of the elevations being substantially the same as the specific gravity of the particles in the depressions. The density of the fibers at the surface has therefore been equalized over the entire area of the board. In one form of the invention a layer of coarse particles is used, the sharpness of the edges of the coarse particles being concealed with fine particles.The product is produced by pressing a layer of binder coated ligno-cellulosic particles on a substrate in a hot plate press with a cushion, preferably of silicone rubber, between the hot platen of the press and the layer of particles.

Title
Textured wood panel
Application Number
04/889,842
Publication Number
3639200
Application Date
December 19, 1969
Publication Date
February 1, 1972
Inventor
Etzold Roland
Vaughan Thomas W
Elmendorf Armin
IPC
B32b 21/14
B32b 21/12
B32b 21/02
B32b 05/16
B71()
E04C 02/10
E04C 02/32
E04C 02/16
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