发明名称 |
BIODEGRADABLE FIBERS FORMED FROM A THERMOPLASTIC COMPOSITION CONTAINING POLYLACTIC ACID AND A POLYETHER COPOLYMER |
摘要 |
A biodegradable fiber for use in forming a nonwoven web is provided. The fiber is formed from a thermoplastic composition comprising at least one polylactic acid in an amount from about 75 wt.% to about 99 wt.% and at least one polyether copolymer in an amount from about 1 wt.% to about 25 wt.%, wherein the polyether copolymer contains from about 40 mol.% to about 95 mol.% of a repeating unit (A) having the following formula. wherein, x is an integer from 1 to 250, the polyether copolymer further containing from about 5 mol.% to about 60mol.% of a repeating unit (B) having the following formula. wherein, n is an integer from 3 to 20; and y is an integer from 1 to 150. Such polyether copolymers have been found to improve a variety of characteristics of the resulting thermoplastic composition, including its ability to be melt processed into fibers and webs, as well as its sensitivity to moisture. |
申请公布号 |
WO2009078849(A3) |
申请公布日期 |
2009.10.29 |
申请号 |
WO2007US87339 |
申请日期 |
2007.12.13 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC.;HE, AIMIN;TOPOLKARAEV, VASILY, A. |
发明人 |
HE, AIMIN;TOPOLKARAEV, VASILY, A. |
分类号 |
D01D5/08;D01D5/098;D01F6/92;D01F8/14 |
主分类号 |
D01D5/08 |
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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