Fiber reinforced thermoplastic structural member

Details Fiber reinforced thermoplastic structural member Fiber reinforced thermoplastic structural member

1995-06-07

1996-12-17

Ryan, Patrick

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 341, 428 363, 428 366, 428 369, 428 3691, B29D 2200, B29D 2300, B32B 108, B44C 508

Patent

active

055851550

ABSTRACT:
In the manufacture of a structural member comprising a thermoplastic composite core with an exterior reinforcing layer, the core member is initially extruded in the shape of a profile. The profile is then contacted with reinforcing fiber and resin to form the exterior reinforcing layer. The exterior thermosetting layer is cured to form a reinforcing layer. The structural member is preferably manufactured using a pultrusion method in which a tractor device is used to provide linear movement of the profile from the extrusion head to the exterior coating operation. The fiber-reinforced thermoset is coated on the entirety of the exterior of the profile or is applied only on a portion of the profile requiring reinforcement in a defined load-bearing direction. The preferred thermoplastic core comprises a polymer-fiber composite material. Such a structural member has significantly improved Young's modulus providing strength for applications such as telephone poles, electric poles, electric lighting poles, boat mast or keel applications, lumber replacements, structural members used in window and door manufacture, etc.

REFERENCES:
patent: 4515737 (1985-05-01), Karino et al.
patent: 4740405 (1988-04-01), Tanaka et al.
patent: 4938823 (1990-07-01), Balazek et al.
patent: 5030408 (1991-07-01), Hirao et al.
patent: 5120380 (1992-06-01), Strachan

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