发明名称 |
Nonwoven fabrics |
摘要 |
This invention relates to improved polypropylene nonwoven fabrics. The fabrics are made from isotactic polypropylene which has been produced with a catalyst systems comprising at least two metallocenes. These nonwoven fabrics, particularly when prepared using a spunbonding process, exhibit significantly improved strength without significant sacrifice of other favorable properties.
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申请公布号 |
US5891814(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19970800436 |
申请日期 |
1997.02.18 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
RICHESON, GALEN C.;STAHL, GLENN A.;MCALPIN, JAMES J.;SPECA, ANTHONY N. |
分类号 |
C08F4/642;C08F4/6592;C08F8/00;C08F10/00;C08L23/12;D01F6/06;D03D15/00;D04H1/54;D04H1/56;D04H3/16;(IPC1-7):D04H1/56 |
主分类号 |
C08F4/642 |
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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