| 摘要 |
PROBLEM TO BE SOLVED: To provide twisted cord having physical properties demanded as the twisted cord without using a metal. SOLUTION: The twisted cord comprises at least two kinds or more biodegradable polyester resin as an essential constituent. In terms of tensile characteristic, one of the polyester resin has an elongation of 1 to 30%, and the other 50 to 1000%. COPYRIGHT: (C)2005,JPO&NCIPI
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