In order to test the tensile strength and elongation at break of the samples, five dumbbell-shaped test pieces were cut from eachof the MENR and MENR/CSt blend sheets and were dried. Theiraverage thickness was established and they were then attached between the grips of a tensile strength tester (Strograph E-L, TOYO-SEIKI). The tensile strength and elongation at break of the samples were measured according to ASTM D412-98 at a crosshead speed of 500 mm/min with a load cell of 100 N. The modulus of the samples was also determined according to JIS K6251 using the same tensile strength tester at the same crosshead speed with a load cellof 500 N.