发明名称 |
Novel propylene copolymers |
摘要 |
A new propylene copolymer comprises a propylene homopolymer block and a terpolymeric random copolymer block of propylene, ethylene, and hexene-1 and is further characterized in that: (a) the proportion therein of the propylene homopolymer block is 97 to 80 percent by weight; (b) the terpolymeric random copolymer block has been so copolymerized that the contents therein of the propylene, ethylene, and hexene-1 based on their respective monomers are 80 to 98 percent, 5 to 1 percent, and 15 to 1 percent, respectively, all percentages being by weight; and (c) the intrinsic viscosity thereof in a decalin solution at 135 DEG C. is 0.3 to 15 dl/g.
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申请公布号 |
US4291140(A) |
申请公布日期 |
1981.09.22 |
申请号 |
US19800198921 |
申请日期 |
1980.10.20 |
申请人 |
MITSUBISHI PETROCHEMICAL CO., LTD. |
发明人 |
FUJII, MASAKI;MIYABAYASHI, MITSUTAKA;TODAKA, HIRONORI;HATTORI, SATORU |
分类号 |
C08F297/00;C08F297/08;(IPC1-7):C08F297/08 |
主分类号 |
C08F297/00 |
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