glycerol ester of gum rosin is an important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper e ... glycerol ester of gum rosin has been general used for ink, adhesive, paint, food and rubber industry. Name of ... , and has special chemical activity. So it is an important raw material for the production of paper, coatings, inks, rubber, soaps, electronic industrial ...