Vestinol C Di-n-butyl phthalate 84-74-2 Degussa-Oxeno Olefinchemie Plasticizers >> Phthalate >> DBP, Di Butyl Phthalate ADHESIVE Di-n-buty-phthalate. Major application is flexibilization of adhesives. The plasticizer is applicable for gelling at low temperature, in production of foam and for high speed processing. Because of its high volatility, this product is preferably used in admixture with longer chain esters. Di-n-buty-phthalate. Used as a plasticizer for flexibilization of adhesives. Applicable for gelling at low temperature. Possesses a high volatility and used in admixture with longer chain esters.