可生物降解和可冲洗的多层膜

广东省科技图书馆(汇编整理) 2017/9/7 16:34:29
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BIODEGRADABLE AND FLUSHABLE MULTI-LAYERED FILM 摘要:A film that is both biodegradable and flushable, and yet can still act as a barrier to water or other fluids during use, is provided. More particularly, the film contains a water-dispersible core layer that helps the film to lose its integrity after being flushed, as well as a water-barrier skin layer that helps maintain the integrity of the film during use. The nature and relative concentration of the components in the water-barrier layer are selectively controlled to achieve a combination of different functions. That is, the majority of the polymers employed in the water-barrier layer are biodegradable polymers that can be degraded by microorganisms while in an aqueous environment (e.g., septic tank, water treatment facility, etc.). To even further enhance the overall renewability of the layer, a relatively high amount of the biodegradable polymers are starch polymers, which are also renewable. The starch polymers can also minimize the degree of stickiness in the film, which can sometimes result from certain types of synthetic polymers. Even at a high starch content, the present inventors have discovered that films may still be readily formed by using synthetic biodegradable polyesters in combination with the starch to facilitate melt processing. 摘要(翻译):一种薄膜,其是两个可生物降解的和可冲洗,和又可以仍然作为一种屏障以水或其它流体的使用过程中,是提供的。更具体地,该膜包含一种水-可分散的芯层是有助于该膜以被冲洗后失去其完整性,以及一种水-屏障的皮肤层是有助于保持该完整性; 该膜过程中的应用。所述的性质和相对该成分的浓度在所述水-屏障层被选择性地控制以达到一种组合的不同功能。的是,所述使用所述聚合物的大部分在所述水-屏障层是可生物降解的聚合物,其可通过微生物降解,同时在一种含水环境(例如,化粪池,水的处理设施,等)。以甚至进一步增强该该层的总renewability,一种相对高量的所述的可生物降解的聚合物是淀粉聚合物,其是还可更新的。所述的淀粉聚合物可还所述粘附性的程度最小化在该膜,其可有时结果从某些类型的合成聚合物。即使在一种淀粉含量高,本发明的发明人已经发现薄膜可以仍然可以容易地通过组合中使用的合成可生物降解的聚酯形成的与所述淀粉以促进熔体加工。 公开(公告)号:EP2640333A4 公开(公告)日:2014-09-17 申请号:EP11841304 申请日:2011-10-17 申请人:KIMBERLY CLARK CO
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