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.
Type:
Grant
Filed:
July 8, 2003
Date of Patent:
June 12, 2007
Assignee:
Composites Gurea, S.A.
Inventors:
Fernando EncĂo Martinez, Santiago Bastida Sagarzazu
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.
Type:
Application
Filed:
July 8, 2003
Publication date:
July 15, 2004
Applicant:
COMPOSITES GUREA, S.A.
Inventors:
Fernando Encio Martinez, Santiago Bastida Sagarzazu