Ralf Dujardin,Jochen Norwig,Fadi El Cheikh Ali,Gerry Phelps
申请号：
US14388428
公开号：
US20150072862A1
申请日:
2013.03.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present disclosure relates to a multilayer film capable of releasing an active ingredient, for example a pesticide. The film has a bottom or internal layer composed in part of a water-soluble polymer fraction containing the active ingredient, and a top or external layer. The bottom or internal layer may have a water-insoluble fraction in addition to the water-soluble polymer fraction. Relative proportions of the water-soluble polymer fraction and of the water-insoluble fraction provide a pre-determined time of release of the active ingredient when the multilayer film is exposed to humidity and/or moist conditions. The present disclosure also relates to methods of making the multilayer film and to uses of the film.
