B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 19/02 (2006.01) B29C 31/00 (2006.01) B29C 43/20 (2006.01) B29C 70/64 (2006.01) B32B 7/12 (2006.01) B29C 67/14 (1990.01)
Patent
CA 2086869
ABSTRACT OF THE DISCLOSURE A method for impregnating a plastic product with a hard wear-resistant material surface layer comprises providing a support plate having a desired shape and further having an adhesive layer on at least a portion thereof; introducing a plurality of particles comprising a hard wear-resistant material onto the adhesive layer; curing the adhesive so as to anchor the particles onto the support plate; placing the support plate into a mold cavity; introducing a polymer material into the cavity; exposing the sheet and polymer material to conditions effective to provide a polymer product having a hard wear-resistant material surface layer therein; cooling the mold and removing the support sheet therefrom. In a preferred embodiment, a regular pattern of particles is provided by providing a mesh plate having a desired pattern of holes set for predetermined size of wear-resistant particles; spreading the particles onto the mesh plate so as to provide a particle in substantially all of the holes; and transferring the pattern of particles onto the adhesive layer so as to minimize contact with the adhesive. The polymer material employed in the present invention can be a polymer powder, a liquified polymer or a two part adhesive mixture which reacts to form a thermoset polymer product.
Borden Ladner Gervais Llp
Deere & Company
Revankar Gopal S.
LandOfFree
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