发明名称 |
VERFAHREN ZUR HERSTELLUNG VON PROPYLENCOPOLYMEREN UND EIN VIELSCHICHTIGER POLYPROPYLENFILM |
摘要 |
A process for producing a propylene copolymer comprises copolymerizing propylene, a C4-C18 alpha -olefin and optionally ethylene in the presence of a catalyst system comprising (i) titanium trichloride obtained by a method comprising reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with a complexing agent and a halogen compound, and (ii) an organoaluminum compound. A multilayer polypropylene film comprises a crystalline polypropylene film layer, and a propylene copolymer film layer, said propylene copolymer being a propylene copolymer containing about 10 to 30% by weight of C4-C18 alpha -olefin and about 0 to 5% by weight of ethylene and having a cold xylene-soluble polymer content of 15% by weight or less. |
申请公布号 |
DE2923754(A1) |
申请公布日期 |
1979.12.20 |
申请号 |
DE19792923754 |
申请日期 |
1979.06.12 |
申请人 |
SUMITOMO CHEMICAL CO.,LTD. |
发明人 |
SHIGA,AKINOBU;MATSUYAMA,KIYOSHI;KAKUGO,MASAHIRO;NAITO,YUKIO;NUNOSE,AKIRA;NIIHAMA,EHIME;NISHIOKA,MASAHARU |
分类号 |
B01J19/18;B32B27/32;C08F210/06;(IPC1-7):C08F210/06;C08J5/18 |
主分类号 |
B01J19/18 |
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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