Appeal No. 1998-1390
Application 08/607,441
ball mill pulverizing previously crushed wood meal to produce
the wood meal granules having the smaller and harder particles
pressed therein. Appellants indicate that in the prior art,
small particulate wood meal has been used as a filler for
molded plastic (e.g., epoxy resin) products to prevent
deformation of the plastic products during molding, and to
provide the desired hardness and moisture absorbing/releasing
properties of the molded products. To provide surface
properties and the appearance of natural wood, prior art
workers have added a given amount of pigment together with the
wood meal to the plastic material to be molded. Because of
the tendency of wood meal to coagulate during handling, prior
art workers have attempted to improve the wood meal properties
to enable uniform dispersion of the wood meal into the
plastic, for example, by using wood meal obtained by grinding
the surface of particle boards previously hardened with urea
base resin. Generally, see appellants’ specification at pages
1 and 2.
Appellants’ claimed coated wood meal is said to possess
various improved properties including increased flowability
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