Patent ID: 7304111
Filing Date: 2007-12-04
Classification: C08F,C08L,C09J

Abstract:
1. A polypropylene copolymer which has a polymer principal chain (A) that is derived from a propylene-based polymer having the following characteristics (1) and (2) and which has a functional group and which further has a side chain containing a polymer chain (B) which is different from the principal chain (A), wherein the weight ratio of (A)/(B) is in the range of 20/1 to 1/20: (1) in a (2) the melting point [Tm] of the propylene-based polymer, as measured by a differential scanning calorimeter, is not higher than 100° C., or the heat required for melting of the crystal of the polymer is not at a value of 5 J/g or more.