| 摘要 |
PCT No. PCT/JP94/01792 Sec. 371 Date Apr. 28, 1996 Sec. 102(e) Date Apr. 28, 1996 PCT Filed Oct. 26, 1994 PCT Pub. No. WO95/11931 PCT Pub. Date Oct. 26, 1993A copolymer having the excellent molding and working properties obtainable by using a branched ethylenic macromonomer and a comonomer selected from the group consisting of ethylene, an alpha -olefin having 3 to 20 carbon atoms, cyclic olefins and styrenes. The branched ethylenic macromonomer of the present invention is derivable from ethylene singly or derivable from ethylene and another olefin, (a) a molar ratio of a terminal methyl group/a vinyl group in the macromonomer being in the range of 1 to 100, the macromonomer having a branch other than the branch directly derived from the other olefin, (b) a ratio of vinyl groups to the total unsaturated groups in the macromonomer being 70 mol % or more, (c) a weight-average molecular weight of the macromonomer in terms of a polyethylene measured by a GPC being in the range of 100 to 20,000.
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