| 发明名称 |
PROPYLENE POLYMER COMPOSITION, FILM THEREOF, AND MULTILAYERED LAMINATE |
| 摘要 |
A propylene polymer composition which (1) when examined with a differential scanning calorimeter, gives a crystallization temperature curve which has a primary crystallization peak temperature (TCP1) of 105 to 110 DEG C and a secondary crystallization peak temperature (TCP2) of 65 to 85 DEG C and in which the proportion of the area of the secondary crystallization peak (TCA2) to that of the primary crystallization peak (TCA1), AR, is 4.0% or lower, (2) has a 25 DEG C xylene-soluble content (XI) of 10 to 30 wt.%, and (3) satisfies the relationship TCP2</=-1.05XI+104; and a multilayered laminate comprising at least three layers composed of (A) two outer layers made of a propylene/ alpha -olefin block copolymer comprising (a1) 70 to 95 wt.% at least one polypropylene block and (a2) 30 to 5 wt.% of at least one elastomer block which is a copolymer of propylene and an alpha -olefin having 2 to 12 (excluding 3) carbon atoms and (C) an intermediate layer made of the propylene polymer composition.
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| 申请公布号 |
WO0155258(A1) |
申请公布日期 |
2001.08.02 |
| 申请号 |
WO2000JP05244 |
申请日期 |
2000.08.04 |
| 申请人 |
SHOWA DENKO PLASTIC PRODUCTS CO., LTD. |
发明人 |
WATANABE, KAZUYUKI;YANAI, JUN-ICHI |
| 分类号 |
B32B27/32;C08L53/00;(IPC1-7):C08L53/00;C08J5/18 |
主分类号 |
B32B27/32 |
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