Composite plastic panel and method for producing same

Details Composite plastic panel and method for producing same Composite plastic panel and method for producing same

1989-11-17

1992-08-11

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of polyamidoester

1563073, 4284242, 4284244, 428910, B32B 2736, B32B 2740, C09J 502

Patent

active

051377870

ABSTRACT:
An improved composite plastic panel is disclosed, including a base layer comprising a thermoplastic or thermoset resin, which may be reinforced, and a protective surface layer comprising a polyurethane polymer having a glass transition temperature of at least 80.degree. C. The protective layer forms a strong polar bond with the base layer. Thus, the composite plastic panel displays high water and weather resistance and has an increased useful lifespan.

REFERENCES:
patent: 3071180 (1963-01-01), Finger et al.
patent: 4101475 (1978-07-01), Stalego
patent: 4362585 (1982-12-01), de Antonis et al.
patent: 4376834 (1983-03-01), Goldwasser et al.
patent: 4377617 (1983-03-01), Ikei et al.
patent: 4567236 (1986-01-01), Goldwasser et al.

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