| 发明名称 | Polylactic acid products and their use | ||
| 摘要 | The invention is directed to materials comprising polylactic acid (PLA). In accordance with the invention, PLA material is stretched in at least the machine direction at a total stretch ratio of 1:4 or more. These materials have excellent biodegradability and find use in horticulture, in particular for tying up plants or parts thereof. | ||
| 申请公布号 | US9440393(B2) | 申请公布日期 | 2016.09.13 |
| 申请号 | US200913142180 | 申请日期 | 2009.12.23 |
| 申请人 | LANKHORST PURE COMPOSITES B.V. | 发明人 | Wolters-Zuur Astrid Marleen |
| 分类号 | D02G3/02;B29C47/88;B29C55/06;C08J5/18;D07B5/00;D07B7/16;B29C47/00;B29K67/00;D07B1/02 | 主分类号 | D02G3/02 |
| 代理机构 | Pearne & Gordon LLP | 代理人 | Pearne & Gordon LLP |
| 主权项 | 1. String product having an elongation at break of 7-25%, made by cast-film extrusion or by blown film extrusion, comprising PLA, being drawn in the machine direction at a total stretch ratio of at least 1:4 and with a minimal biaxial stretch ratio aspect (machine direction X/transverse direction Y) of 4, wherein the total stretch ratio refers to unidirectional stretching, by which stretching whitening of the PLA material is observed and wherein more than 95 wt % of the product is PLA. | ||
| 地址 | Sneek NL | ||