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US 4,786,350 AGranted
Method of manufacturing a weatherable exterior siding
AssigneePony Industries, Inc.
InventorsJeffrey E. Nesbitt, James E. Pierce
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Abstract
A manufacturing process for providing an extruded polyvinyl chloride exterior siding with a weatherable layer of polyvinyl fluoride is disclosed. In a preferred embodiment, the process facilitates the production of dimensionally stable dark colored siding.
Claims11
A method of producing a thermoplastic resin-based shaped profile having superimposed on at least one of its surfaces a polyvinyl fluoride or polyvinylidene fluoride weatherable layer which method comprises:
- (a) extruding a compound comprising a thermoplastic resin through a die set having more than one plane to form a non-planar shaped profile:
- (b) flattening the resulting non-planar shaped profile to form a substantially flat substrate;
- (c) laminating a preformed weatherable layer comprised of polyvinyl fluoride or polyvinylidene fluoride onto the surface of the flattened substrate;
- and
- (d) shaping the resulting laminated substrate into substantially the shape of the extruded non-planar shaped profile before it was flattened.
2 more elements
Dependencies are inferred from the claim text.