发明名称 |
Polymeric fibers and fabrics |
摘要 |
Polymeric fibers and nonwoven polymeric fabrics having improved softness characteristics are provided. The fibers and fabrics include either a random propylene copolymer or a blend of a polypropylene polymer and a low-density polyethylene polymer. The random propylene copolymer is produced through metallocene-catalyzed and Z-N polymerization and includes from 80 wt. % to 98 wt. % of propylene-derived units and from 2 wt. % to 20 wt. % ethylene-derived units. The low-density polyethylene polymer is also produced through metallocene-catalyzed polymerization and has a melt index of greater than 10 and a molecular weight distribution of 1.5 to 4. The fibers may be produced using a variety of processes including melt blowing, melt spinning, and spunbonding. The fibers may be converted into nonwoven fabrics through conventional techniques.
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申请公布号 |
US7470748(B2) |
申请公布日期 |
2008.12.30 |
申请号 |
US20050193592 |
申请日期 |
2005.07.29 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
CHENG CHIA Y.;STAHL G. ALLAN |
分类号 |
C08L23/00;B28B3/20;B29C47/00;C08L23/04 |
主分类号 |
C08L23/00 |
代理机构 |
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