SEARCH Articles Figures Tables Izod notched impact study of two types of PVC having different K numbers and variable concentration of acrylic impact modifier . Data from Tseng, A. A. IBorrosky, M. A. O Connor, S. M. Knotts, J. J., Adv. Polym. Technoi, 10, 3,205-218, 1990. [Publishers Imprint]