Abstract: An adhesive binder for bonding together lignocellulosic particles, fibers and flakes of vegetable origin to form particle boards, fiber boards, flake boards and similar wood-based products, comprising a solublized fraction obtained by enzymatic treatment of fibrous, lignocellulosic raw materials. The present binder can be obtained by treating fibrous lignocellulosic raw material with a hydrolytic enzyme in an aqueous medium, recovering the solubilized material of the enzymatic treatment, forming an aqueous suspension containing said material and an oxidase, and oxidizing said material in the presence of said oxidase by introducing oxygen-containing gas into the supension. This method thus produces an increased amount of a water-soluble fraction containing carbohydrates, extractives and lignin useful as an adhesive binder.

Abstract: A process for manufacturing fiber boards and similar wood-based products from a lignocellulosic raw material having a moisture content of at least 10 wt-%. According to the process, an aqueous fraction is separated from the fibers of the raw material, which fraction later is recycled to the process in order to form at least a part of the agent used for binding the fibers. Before mixing with the fibers, the aqueous effluent is concentrated and enzymatically oxidized in the presence of oxygen in order to polymerize the solubilized wood material and in order to increase its concentration. Lignin can be added to the water solubilized wood material or the solubilized wood material can be added to the fibers together with another binder. Eventually, the mixture is formed into a board and hardened.

Abstract: The present invention relates to N acyl and O acyl derivatives of N,N-bis(2,2-dimethyl-3-hydroxypropyl)amine which are produced as follows: ammonium halide, sulphate or aldehyde, and isobutyl aldehyde are subjected to condensation reaction and the obtained product is reduced to the corresponding amino alcohol. The hydrogen atoms linked to the nitrogen atom and the oxygen atom are thereafter substituted by acyl groups. The N-acylation and esterification of hydroxyl groups can be performed simultaneously using a carboxyl acid, carboxyl acid halide, or carboxyl acid anhydride. The N,N-bis(2,2-dimethyl-3-hydroxypropyl)amine derivatives can be used as polymer stabilizers, PCV plasticizers, emulsifiers, corrosion resistance agents, and metal complexing agents.