Process for manufacture of polymer composite products
AssigneeCharlebois Technologies Inc.
InventorRaymond Charlebois
Life of this patent
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Abstract
Polymer composite products, including products made of polymer concrete, reinforced polymer concrete and reinforced plastics, such as bulk molding compound, sheet molding compound, mineral molding compound and advanced molding compound systems, are produced by the simultaneous application of vibration, heat and pressure to a mixture of filler and polymeric binder. The simultaneous application of vibration, heat and pressure provides a protective layer of polymerized binder that protects the surfaces of the mold and provides products that are substantially free of curling, cracking or voids. The process of the present invention substantially reduces the time required to cure polymer composite products.
Claims16
A process for the manufacture of a polymer composite product, comprising the steps of distributing a pre-determined amount of a mixture of filler and polymeric binder in a mold;
- curing the mixture by simultaneous application of heat, pressure and vibration;
- the mixture being heated, pressurized and vibrated in the curing step sufficient to:
- (a) form a skin of cured polymer around the mixture of filler and polymeric binder:
- (b) minimize boiling and evaporation of the polymeric binder;
- and (c) evenly distribute the filler in the mold such that the formed polymer composite product is substantially void-free.
Dependencies are inferred from the claim text.