发明名称 |
Bubblepack film comprises surface layers of linear low-density polyethylene and at least one middle layer comprising a blend of low-density polyethylene and linear low-density polyethylene |
摘要 |
<p>Bubblepack film comprises surface layers of linear low-density polyethylene (I) a middle layer comprising a blend of low-density polyethylene and linear low-density polyethylene (II), where the crystallization temperature of (II) is at least 2 deg C higher than that of (I), and (I) satisfies specified mathematical relationships. Bubblepack film comprises surface layers of linear low-density polyethylene (I) and at least one middle layer comprising a blend of low-density polyethylene and linear low-density polyethylene (II), where the crystallization temperature of (II) is at least 2 deg C higher than that of (I), and (I) satisfies the following mathematical relationships: (A) the deviation coefficient of the composition distribution (Cx), as defined by equation (1), is no more than 0.5 Cx = /=s/SCBave (1) where /=s is the standard deviation of the composition distribution and SCBave is the average degree of branching; (B) the xylene solubles content (wt.%) is less than 4.8 /* 10<-5> /* (950-d)<3> + 10<-6> /* (950-d)<4> +1 where d is the density; and (C) the crystallization temperature is greater than: 0.763 /* d-599.2.</p> |
申请公布号 |
DE10162974(A1) |
申请公布日期 |
2002.06.27 |
申请号 |
DE2001162974 |
申请日期 |
2001.12.20 |
申请人 |
SUMITOMO CHEMICAL CO., LTD. |
发明人 |
FUKADA, MASANORI;KASAHARA, TATSUYA;NAGAMATSU, TATSUHIRO |
分类号 |
B32B27/32;C08L23/06;C08L23/08;(IPC1-7):B32B27/32;C08J5/22 |
主分类号 |
B32B27/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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