发明名称 |
PROPYLENE RANDOM COPOLYMER COMPOSITION HAVING EXCELLENT WEATHER RESISTANCE AND FILM THEREFROM |
摘要 |
PROBLEM TO BE SOLVED: To provide a propylene random copolymer composition that can produce film having excellent weather resistance, manifesting excellent heat sealing properties, showing good slipping and antiblocking properties, and can attain high-speed film formation. SOLUTION: The objective random copolymer composition is produced by formulating a weathering agent and/or a coloring agent to a propylene-ethylene random copolymer meeting the following conditions: (1) the content of ethylene units (α) is 0.2-10 wt.% according to 13C-NMR measurement; (2) the elution (Wp) is >=20 wt.% in the temperature range of from (To-5) deg.C to (Tp+5) deg.C, when the main peak temperature is defined as To in deg.C in the temperature- programmed fractionation chromatography; (3) the elution (W0) in the temperature range of <=0 deg.C in the temperature-programmed fractionation chromatography andαsatisfy the following relation: W0<=(3+2α)/4.
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申请公布号 |
JP2001031804(A) |
申请公布日期 |
2001.02.06 |
申请号 |
JP19990205298 |
申请日期 |
1999.07.19 |
申请人 |
IDEMITSU PETROCHEM CO LTD |
发明人 |
TAMURA SATOSHI;AZUMA YASUSHI;TSUJITA KOJI;SETA YASUSHI |
分类号 |
C08L23/16;C08K3/00;C08K5/00;C08K5/07;C08K5/34;(IPC1-7):C08L23/16 |
主分类号 |
C08L23/16 |
代理机构 |
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主权项 |
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地址 |
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