Patent ID: 7105599
Filing Date: 2006-09-12
Classification: C08F,C08L

Abstract:
1. A stretch material consisting essentially of a thermoplastic polymer material that meets the following conditions: (i) the thermoplastic polymer material contains: (ii) the thermoplastic polymer material has a residual strain of 15% or less after having been stretched to 150% elongation at 25° C. in a stretch test; (iii) the thermoplastic polymer material has a permanent tensile set of 10% or less when the thermoplastic material is stretched to an elongation of 100%, and held in the stretched state for 120 minutes at 25° C., released and then left for 30 minutes; (iv) the thermoplastic polymer material shows a 15% or less deviation in the value of the melt tension when tested in a melt tension test performed under a temperature condition that allows an MFR of 5 to 15 g/10 min; and (v) the thermoplastic polymer material melts and breaks when wound at a winding speed of 60 m/min or more in a melt tension test performed under a temperature condition that allows an MFR of 5 to 15 g/10 min.