Process for manufacturing fully recyclable mining screens
AssigneeCovestro LLC
InventorsMichael Lorenzo, Jean Paul Rodrigues
Life of this patent
Estimating the term…
Abstract
The present invention provides an environmentally-friendly, fully recyclable composite mining screen which has sufficient rigidity to replace existing metal and metal covered plastic mining screens. The inventive composite screen insert contains stiff reinforcing fibers (glass, carbon, etc.) and exhibits the rigidity of metal and metal-covered plastic mining screen inserts so as to minimize deflection in use. The inventive mining screen is also completely recyclable because at the end of its useful life, the broken and used screen can be ground into polymer particles and the particles incorporated into new screens or other parts.
Claims20
A composite mining screen comprising:
- a cast elastomer frame encapsulating a pultruded composite mining screen insert, wherein the insert contains up to 85 wt. % fibrous reinforcing material, based on the weight of the insert, and wherein a polyol component of the cast elastomer contains polymer regrind.
Dependencies are inferred from the claim text.