Densification of lignocellulosic material

Details Densification of lignocellulosic material Densification of lignocellulosic material

B - Operations, Transporting

27

K

B27K 3/34 (2006.01) B27K 3/15 (2006.01) C08L 97/02 (2006.01)

Patent

CA 2061749

The invention comprises a method of densifying lignacellulosic material such as wood. The wood is impregnated with a maltodextri solution under vacuum and/or pressure and the maltodextrin is thin cross linked to substantially insolubilise the maltodextrin. A wood-polymer composite is formed. Suitable cross linking agents include compounds having at least one hydroxyl group. Maltodextrins having a dextrose equivalent in the range 15 to 30 are preferred. The resulting composite material has improved appearance, hardness, impact resistance, strength and water repellency.

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