| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject polymer having a specific MFR value, a specific density, a specific unsaturated bond-containing structural unit, or the like and different in mechanical characteristics, processability, or the like from conventional ethylene polymers by polymerizing ethylene or by copolymerizing ethylene andα-olefin. SOLUTION: This polymer has (A) a melt flow rate(MFR) of 0.01-1,000 g/10 min. when measured at 190 deg.C and 2.16 kg load, (B) a density of 0.85-0.97 g/cm<3> , (C) an unsaturated bond-containing structural unit of formula I or formula II (wherein, R is an aliphatic hydrocarbon). The polymer is obtained by polymerizing ethylene or by copolymerizing ethylene andα-olefin, and (D) the content of ethylene is 70-100 wt.% and the content of 3-20Cα-olefins is 30-0 wt.%. The polymer is a new polymer having, in itself, three substitution-type double bonds detected with<1> H-NMR and is expected to have the effect of improving the stability of a bubble in forming film. |
