| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin composition for laminate paper, which does not cause taking surging on extrusion laminate molding, and is excellent in high velocity moldability, and to provide laminate paper containing at least one layer comprising the composition. SOLUTION: This resin composition for laminate paper comprises an ethylenic resin which is a copolymer of ethylene with a 4 to 10Cα-olefin, and simultaneously satisfies the following requirements (I) to (V). (I) MFR is 0.1 to 50 g/10 min. under a load of 2.16 kg at 190°C. (II) A density of 875 to 970 kg/m<SP>3</SP>. (III) A ratio [MT/η<SP>*</SP>] of a melt tension [MT] at 190°C to a shear viscosity [η<SP>*</SP>] at an angular velocity of 1.0 rad/sec at 200°C is 1.00×10<SP>-4</SP>to 9.00×10<SP>-4</SP>. (IV) The sum [(A)+(B)] of the number [A] of methyl branches and the number [B] of ethyl branches per 1000 carbon atoms is≤1.8. (V) A zero shear viscosity [η<SB>0</SB>] and a weight-average mol.wt. at 200°C satisfies a relation (Eq-1): 0.01×10<SP>-13</SP>×Mw<SP>3.4</SP>≤η<SB>0</SB>≤4.5×10<SP>-13</SP>×Mw<SP>3.4</SP>. COPYRIGHT: (C)2008,JPO&INPIT |
