Laminated board for exterior cladding

Details Laminated board for exterior cladding Laminated board for exterior cladding

2007-06-12

2007-06-12

Cole, Elizabeth M. (Department: 1771)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C428S505000, C428S507000, C428S526000, C428S532000, C428S537100, C428S537500

Reexamination Certificate

active

10615602

ABSTRACT:
Laminated board for exterior cladding formed from a core (13) of kraft paper impregnated with phenolic resin, at least one layer of natural wood (14) and at least one surface covering layer (15) including a coating film (17) and a substrate film (16). The coating film (17) is a single-layer film based on polymethyl methacrylate (PMMA), a two-layer film with its lower layer based on polymethyl methacrylate and its upper layer based on polyvinylidine fluoride (PVDF), or a PMMA/PVDF single-layer film. The substrate film (16) consists of a paper impregnated with a compound formed from 80-95% by weight of a phenolic resin and 5-20% by weight of a polymer promoting adhesion of the coating film (17), such as an acrylic, melamine or urea polymer or a combination thereof.

REFERENCES:
patent: 3616021 (1971-10-01), Valerius
patent: 3767439 (1973-10-01), Moyer et al.
patent: 5047282 (1991-09-01), Mier
patent: 58209508 (1983-12-01), None
patent: 865873 (1981-09-01), None
Translation of JP 58-209508, “Method for Manufacturing a Resin-Reinforced Wooden Panel”.

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