9.
    发明专利
    未知

    公开(公告)号:DE69001593D1

    公开(公告)日:1993-06-17

    申请号:DE69001593

    申请日:1990-08-01

    Abstract: A copolymer of propylene and butene-1, the constituent monomer units of which comprise 20 - 63 wt.% of propylene and 37 - 80 wt.% of butene-1, and which exhibits 0.5 or more in the ratio of the sum of the intensities of absorptions observed at about 20.0 - 21.0 ppm to the sum of the intensities of total absorptions attributable to the methyl groups in the propylene units observed at about 19.0 - 22.0 ppm in the C-NMR spectrum measured in a 1,2,4-trichlorobenzene solution and 0.05 or more in the intrinsic viscosity measured at 135 DEG C in a tetralin solution.

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