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US 4,307,140 AGranted
Abrasive resistant laminated article and method of manufacture
OwnerThomas E. Davisinventor
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OwnerThomas E. Davisinventor
Estimating the term…
A laminated article comprising a plurality of abrasive resistant ceramic tiles secured to an elastomeric polyurethane cushioning support by means of a multitude of short thin fibers having major portions thereof embedded within an epoxy resin bonded to the tiles is fabricated by applying a thin layer of the resin in an uncured liquid phase to the tiles, applying a coating of the fibers to the liquid resin such that minor portions of the fibers in contact with the resin are wet thereby and the remaining major portions of the fibers extend from the resin layer, curing the resin to secure the fibers therein and to bond the resin to the tiles, applying a layer of a thermosetting polyurethane in an unpolymerized liquid phase to the fiber impregnated resin layer, and thereafter curing the polyurethane layer.
A laminated article comprising the combination of a form sustaining member, a polymerized elastomer having a liquid state prior to being polymerized, means for securing the elastomer to the member comprising a hardened cement layer bonded to the member and having a liquid state prior to being hardened, the last means also comprising a multitude of short thin fibers of a material that is wetable by both the cement and the elastomer in their liquid states, each fiber having a portion embedded in the cement layer and its remainder embedded in the elastomer.
The method of fabricating a laminated article comprising a member of form sustaining material, a cement adapted to bond to said member when applied thereto in a fluid state and thereafter hardened, and an elastomeric layer comprising a curable elastomer having a fluid state, the steps of applying a thin layer of said cement in its fluid state to said member, covering the fluid cement layer with a multitude of short fibers of a material that is wetable by the fluid cement, allowing portions of the separate fibers to come into intimate wet contact with the fluid cement while enabling the remainder of the separate fibers to project outwardly from the fluid cement, enabling the fluid cement to harden to afix thereto the portions of the fibers in intimate contact therewith while said remainder project outwardly from the cement, forming the elastomeric layer by pouring the elastomer in a fluid state on the hardened cement to embed said remainder of the fibers into the fluid elastomer, and curing the elastomer with said remainder embedded therein to effect an interlock between the elastomeric and cement layers.
Dependencies are inferred from the claim text.