| 摘要 |
<p>An olefin copolymer which is composed of olefin units and diolefin units and has a weight-average molecular weight of 200 to 800,000, a diolefin unit content of 0.002 to 30 mole % and a TUS to DOU ratio of 0.001 to 200 (wherein TUS (mole %) represents the total content of the unsaturations observable in the molecular chain and DOU (mole %) represents the content of the diolefin units); an olefinic graft copolymer produced by grafting an olefin onto the above copolymer; the products of hydrogenation of these copolymers; and processes for producing the same. These copolymers have excellent processability and good thermal resistance, transparency and uniformity and are useful as not only high-performance VLDPE, LDPE, L-LDPE and HDPE but also novel branched propylene polymer, thermoplastic elastomer and compatibilizer for other resins.</p> |
