Chemicals for industrial purposes and used in science; Chemicals containing lignin, lignosulphonate and/or derivatives thereof for use in industry; lignin being unprocessed polymers; Lignin derivatives, namely, thermally processed lignin-cellulosic material from plants use as an extender for plastic products; lignosulphonates; lignosulphites being unprocessed polymers; lignin being unprocessed polymers, lignin derivatives, namely, thermally processed lignin-cellulosic materials from plants fo...