| abstract |
water sensitive biodegradable films A biodegradable and water sensitive (ie water soluble, water dispersible, etc.) film that loses its integrity over time in the presence of water. The film contains a biodegradable polyester, starch, water soluble polymer and plasticizer. The desired characteristic of the film relative to its water sensitivity can be obtained in the present invention by selectively controlling various aspects of film production such as, for example, the nature of the components employed, the relative amount of each component. , the mode of production of the film and so on. |