Patent ID: 7214755

Claim:
A crystalline higher α-olefin polymer, comprising: in polymerized form, units of at least one higher α-olefin having 10 or more carbon atoms, wherein a melting endothermic curve of said crystalline higher α-olefin polymer obtained by a differential scanning calorimeter (DSC) exhibits a single peak melting point which is labeled depending on the measurement conditions as TmD and Tm, wherein TmD is defined as a top of said single peak observed in said melting endothermic curve obtained by said DSC when a sample is held in a nitrogen atmosphere at −10° C. for 5 min and then heated to 190° C. at a temperature rise rate of 10° C./min, and wherein Tm is between 20 to 100° C. and is defined as a top of said single peak observed in said melting endothermic curve obtained when the sample is further held at 190° C. for 5 min, cooled to −10° C. at a temperature drop rate of 5° C./min, held at −10° C. for 5 min, and then heated again to 190° C. at a temperature rise rate of 10° C./min; and wherein said crystalline higher α-olefin polymer has a single spin-lattice relaxation time T 1 observed at a temperature not lower than the melting point when the spin-lattice relaxation time (T 1 ) is measured by solid NMR analysis.