发明授权
US5688582A Biodegradable filament nonwoven fabrics and method of manufacturing the
same
失效
可生物降解长丝非织造织物及其制造方法
- 专利标题： Biodegradable filament nonwoven fabrics and method of manufacturing the same
- 专利标题（中）： 可生物降解长丝非织造织物及其制造方法
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申请号： US604532申请日： 1996-02-20
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公开(公告)号： US5688582A公开(公告)日： 1997-11-18
- 发明人: Koichi Nagaoka , Shigetaka Nishimura , Fumio Matsuoka , Naoji Ichise , Yasuhiro Yonezawa , Keiko Sakota
- 申请人： Koichi Nagaoka , Shigetaka Nishimura , Fumio Matsuoka , Naoji Ichise , Yasuhiro Yonezawa , Keiko Sakota
- 申请人地址： JPX Amagasaki
- 专利权人： Unitika Ltd.
- 当前专利权人： Unitika Ltd.
- 当前专利权人地址： JPX Amagasaki
- 优先权： JPX7-047678 19950308; JPX7-047680 19950308; JPX7-047681 19950308; JPX7-175296 19950712
- 主分类号： D04H1/42
- IPC分类号： D04H1/42 ; D04H3/14 ; D04H3/16
摘要：
A biodegradable filament nonwoven fabric comprising a nonwoven web made up of filaments, each filament comprising a high melting point component composed of a first aliphatic polyester having biodegradability and a low melting point component composed of a second aliphatic polyester having biodegradability with a melting point lower than that of the high melting point component, the nonwoven web processed to a predetermined nonwoven fabric configuration. At least one of the high melting point component and the low melting point component is arranged in a plurality of divisions within the cross section of the filament. Both the high melting point component and the low melting point component extend continuously in the axial direction of the filament and are exposed on the surface of the filament. A method for manufacturing the biodegradable filament nonwoven fabric is also disclosed herein.
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