Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1995-10-17
1998-10-27
Ryan, Patrick
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428359, 428361, 428378, 428393, 428332, 428407, 428402, 428507, 428510, 428511, 428514, 523222, 521 13, 521 14, 521551, B32B 516
Patent
active
058276076
ABSTRACT:
The invention relates to a thermoplastic composite material consisting essentially of a thermoplastic polymer and a wood fiber. The composite can be used in the form of a linear extrudate or a thermoplastic pellet to manufacture structural members. The linear extrudate or pellet can have any arbitrary cross-section or can be a regular geometric shape. Typically the thermoplastic polyvinyl chloride polymer and the wood fiber are combined and extruded in the form of a pellet. The pellet can be then taken, placed in an extruder and extruded in the form of a structural member. The composite material of the invention can be used to form structural members having high modulus (greater than about 500,000 psi). The thermoplastic structural members of the invention can then be recycled to form new thermoplastic.
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Deaner Michael J.
Heikkila Kurt E.
Puppin Giuseppe
Andersen Corporation
Gray J. M.
Ryan Patrick
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