Patent ID: 8518321
Filing Date: 2013-08-27
Classification: B29C,B29K,B32B,B65D,C08J

Abstract:
1. A biaxially-oriented film consisting essentially of: a nylon film consisting essentially of nylon 6, wherein said film has an elongation ratio in each of the machine direction, transverse direction, a 45 degree direction and a 135 degree direction, until a film rupture is 70 percent or more, the elongation ratio being measured in a tensile test, wherein the testing conditions include: a sample width of 15 mm; a distance between gauge points of 50 mm; and a tensile speed of 100 mm/min, and a stress ratio A (σ wherein an oriented ratio in the transverse direction is larger than the oriented ratio in the machine direction, and wherein a crystallinity degree of the film is in a range of 20 to 38 percent.