Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1992-01-21
1994-02-22
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156154, 156230, 156242, 156245, 156247, 156249, 156276, 156279, B32B 1902
Patent
active
052883531
ABSTRACT:
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.
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Deere & Company
Weston Caleb
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