Method for producing a polymer adhesive to phenol formaldehyde polymer adhesive, phenol formaldehyde, and offset of wood

摘要

Method for producing a polymer adhesive to phenol formaldehyde polymer adhesive, phenol formaldehyde, and offset of wood polu00edmerosl phenol formaldehyde adhesives and lignin - phenol - formaldehyde with improved properties are disclosed, as well as the production method thereof.The method comprises providing at least one phenolic compound, at least m composed of formaldehyde, an alkali metal hydroxide, water and at least one carbon black; mixing the at least one phenolic compound, at least one composed of formaldehyde, the alkali metal hydroxide.Water and carbon black to produce a metilolau00e7u00e3o medium at a pH of about 10 or less; and keeping the environment in a temperature of metilolau00e7u00e3o with water; and increasing the temperature of the middle metilolado to produce the polymer of phenol - formaldehyde through a reaction of condens The action.