| 发明名称 |
Polypropylene-polybutylene heat sealable laminated packaging film with improved optics |
| 摘要 |
A packaging film comprising a core layer of polypropylene and a surface layer comprising a propylene ethylene random copolymer wherein at least one of said core or said surface layers contains a minor amount of a high melt index butylene homopolymer.
|
| 申请公布号 |
USH1274(H) |
申请公布日期 |
1994.01.04 |
| 申请号 |
US19910677049 |
申请日期 |
1991.03.29 |
| 申请人 |
SHELL OIL COMPANY |
发明人 |
HWO, CHARLES C. |
| 分类号 |
B29C55/12;B29K23/00;B29L7/00;B29L9/00;B32B7/02;B32B27/32;B32B37/15;B65D65/40;(IPC1-7):B32B7/02 |
主分类号 |
B29C55/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
