C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/02 (2006.01) B32B 27/32 (2006.01) C08L 23/04 (2006.01) C08L 23/10 (2006.01) C08L 23/12 (2006.01)
Patent
CA 2117856
A polyolefin composition, which comprises:(A) 1 to 99 % by weight of a polyolefin having the following properties of (a) to (e); (a) a ratio of kinematic vis- cosity .eta. 1 at a frequency of 10 -1 rad/sec to kinematic viscosity .eta. 2 at a frequency of 10 rad/sec at a tempe- rature of 190 ~ according to a kinematic viscoelasticity determination method of 4 to 20, (b) a crystallization peak temperature Tcp according to a Differential Scann- ing Calorimetry of 110 to 130 ~, (c) a ratio (Tmp/Tcp) of melting peak temperature Tmp to crystallization peak temperature Tcp according to a Differential Scanning Calorimetry of 1.1 to 1.5, (d) Tmp/(Tmp-Tcp)= 3.0 to 9.8, and (e) a crystal structure exhibiting a-axial ori- entation in a diffraction pattern according to a X-ray diffraction method, and (B) 99 to 1 % by weight of a propylene resin having the following properties of (f) and (g) ; (f) a ratio of kinematic viscosity .eta. 1 at a frequency of 10 -1 rad/sec to kinematic viscosity .eta. 2 at a frequency of 10 rad/sec at a temperature of 190 ~ according to a kinematic viscoelasticity determination method of below 4, and (e) and no crystallization structure exhibiting a-axial orientation in a diffra- ction pattern according to a X-ray diffraction method.
Iwamoto Satoshi
Watanabe Kazuyuki
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