Intermediate for the production of lignin polymerizates and their use in the production of derived timber products

摘要

The invention relates to an intermediate for the production of polymerizates from lignin derivatives from pulp industry, produced by processing lignin derivatives with phenol oxidizing enzymes in the presence of oxidation agents. The invention is characterized in that the lignin derivatives a) are subjected to enzyme treatment for more than 3 hours in the presence of air, or b) are subjected to enzyme treatment for more than 10 minutes while air or oxygen is passed through them, or c) are oxidized by treatment with chemical oxidation agents.