Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1996-10-22
1997-12-02
Ryan, Patrick
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428107, 428109, 428110, 428111, 428113, 428114, 428218, 428219, 428246, 428248, 428249, 4285371, 156264, 156296, 523099, 5230911, 527294, B32B 900
Patent
active
056934092
ABSTRACT:
A fiber-cement trim board is formed by a fiber-cement core layer faced with a pair of fiber-cement surface layers of substantially equal thickness in the core layer and have a cement-to-wood ratio by weight of between 2 and 3.5 and at least 70% of the wood strands have a length longer than 10 min. Each of the surface layers is formed of a fiber-cement mixture containing wood strands, at least 80% of which have a length of less than 4 mm and a cement-to-wood ratio by weight of between 2 and 3.5. The board is covered at least on the two main faces by a water barrier coating.
REFERENCES:
patent: 2697677 (1954-12-01), Elmendorf
patent: 3164511 (1965-01-01), Elmendorf
patent: 5196061 (1993-03-01), Thomas
Fissette, P., "Exterior Trim Alternatives to Wood", JLC, May 1996, pp. 36-40.
Gnatowski Marek Jan
Lau Kenneth Kwok-Cheung
Rogerson Douglas Elliot
Bahta Abraham
MacMillan Bloedel Limited
Rowley C. A.
Ryan Patrick
LandOfFree
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