Wood composites with foliage adhesive

Details Wood composites with foliage adhesive Wood composites with foliage adhesive

1978-03-06

1980-11-18

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428 2, 428528, 428535, 428537, 264122, 156 622, B32B 2102

Patent

active

042346584

ABSTRACT:
Wood can be hot-pressed into various composites using as adhesive subdivided plant foliage. Considerable bond strength is achieved, the bonds having water resistance adequate for many uses. The foliage is the primary adhesive i.e., is greater than 95% wt. of the active adhesive components present. The foliage can be used either in the form of a powder or as a dispersion in an aqueous liquid carrier. The foliage-wood system is hot-pressed to achieve the desired bonding, the pressing temperature being above the softening temperature of the foliage. The softening temperature of the foliage varies depending on the moisture content. The foliage proportions in the composite can range from about 1% to about 60% by wt. or more in some cases. Increased bond strengths have been achieved using formaldehyde crosslinking agents or alkaline additives.

REFERENCES:
patent: 3995003 (1976-11-01), Potter et al.
patent: 4044087 (1977-08-01), Robitschek et al.
patent: 4045386 (1977-08-01), Hartman
patent: 4082903 (1978-04-01), Chow

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