Thermoplastic photoluminescent pilings and process for making th

Details Thermoplastic photoluminescent pilings and process for making th Thermoplastic photoluminescent pilings and process for making th

1998-02-11

1999-12-14

Thibodeau, Paul

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428 76, 428501, 428515, 428690, 2504581, 2504621, 2504651, 25230136, B32B 2700

Patent

active

060014911

ABSTRACT:
A composite marine piling is provided comprising (a) a core element comprising filler and a thermoplastic resin and (b) a sheath comprising thermoplastic resin and a light absorbing/emitting material. The filled thermoplastic composition of the core element is melt processed (for example injection or compression molded) to produce the filled thermoplastic composite marine piling core element. The sheath covers top of the core element to provide the top portion of the piling with a light responsive sheath to enhance the visibility of the piling to ship operators. The piling is a useful replacement for wood pilings and has several physical property advantages and preferably being suitable made from recycled plastic and waste byproduct filler.

REFERENCES:
patent: 4211813 (1980-07-01), Gravisse et al.
patent: 4812660 (1989-03-01), Lindmayer
patent: 4875799 (1989-10-01), Harrison
patent: 5490344 (1996-02-01), Bussiere
patent: 5607621 (1997-03-01), Ishihara et al.
patent: 5658519 (1997-08-01), March et al.
patent: 5799870 (1998-09-01), Bayer

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