A method of producing a thermally modified and impregnated wooden product is described herein. One or more pieces of wood are thermally modified. The thermally modified wood is formed into a wooden object by hand, tool, machine, a computer numerical controlled machine, or combinations thereof. The wooden object is then impregnated with one or more treatment agents to produce the thermally modified and impregnated wooden product. The wooden object is impregnated by applying pressure or heat while the object is in the presence of the one or more treatment agents. Minimal, if any, deformation of the thermally modified wooden object occurs during impregnation.

Disclosed is a reactor system for the modification of lignocellulosic materials. According to the invention, the system comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

Disclosed is a reactor system for the modification of lignocellulosic materials. According to the invention, the system comprises a reaction vessel, a vacuum connection and an inlet and/or outlet connected to a gas flow loop connected to a heat exchanger and at least one fluid circulation device. Particularly, gas flow loop is arranged so as to allow gas circulation over the diameter of the reaction vessel. The gas flow loop preferably includes a gas distribution device, such as a distribution plate.

The present invention relates to an improved method for impregnating a porous material, such as wood, more specifically a method in which an active ingredient to be deposited within the porous material is dissolved in condensed carbon dioxide and impregnated in the material.

Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.

Disclosed herein are compositions and methods for treating wood to give it a desirable color that is durable over time, while at the same time rendering the wood resistant to fungal decay and insect attack. The wood may be pressure treated in a two-step process whereby the wood is first treated with a wood preservation composition, and then treated with a composition comprising pigments, or vice versa. Alternatively, the wood may be simultaneously treated with a composition comprising a wood preservative and a composition comprising pigments.

A method of treating wood includes subjecting the wood to a vacuum environment, and thereafter contacting the wood under positive pressure with an aldehyde and an isocyanate, both the aldehyde and the isocyanate being in liquid form.

A method of treating wood includes subjecting the wood to a vacuum environment, and thereafter contacting the wood under positive pressure with an aldehyde and an isocyanate, both the aldehyde and the isocyanate being in liquid form.

The present invention provides a paraffin-reinforced wood and a method for manufacturing the same, and more specifically, a paraffin-reinforced wood in which a natural wood is vacuum impregnated with dissolved paraffin and processed, thereby preventing a penetration of moisture into the wood and increasing durability and corrosion resistance of the wood, such that the reinforced wood is very useful as various deck-wood, agricultural wood posts, water wood posts, etc., and a method and apparatus for manufacturing the same.

The present invention provides a paraffin-reinforced wood and a method for manufacturing the same, and more specifically, a paraffin-reinforced wood in which a natural wood is vacuum impregnated with dissolved paraffin and processed, thereby preventing a penetration of moisture into the wood and increasing durability and corrosion resistance of the wood, such that the reinforced wood is very useful as various deck-wood, agricultural wood posts, water wood posts, etc., and a method and apparatus for manufacturing the same.