(under subclass 1) Subject matter wherein the organic active ingredient is lignin or a reaction derivative thereof, e.g., lignin sulfonate, etc.
(1) Note. Lignin is a noncarbohydrate, polymeric substance
found in wood. It is isolated directly from wood or wood products or from the treatment of wood, e.g., waste sulfite liquor or black liquor. The structure of the lignin monomer is not completely known.
