Patent ID: 8598404
Filing Date: 2013-12-03
Classification: C08J,C08L,Y10T

Abstract:
1. A water-sensitive biodegradable film, the film comprising: from about 2 wt. % to about 20 wt. % of at least one biodegradable polyester, wherein the biodegradable polyester is an aliphatic-aromatic polyester, further wherein the biodegradable polyester has a melting point of from about 50° C. to about 180° C. and a glass transition temperature of about 25° C. or less; from about 0.5 wt. % to about 45 wt. % of at least one water-sensitive starch; from about 0.1 wt. % to about 40 wt. % of at least one plasticizer; from about 0.1 wt. % to about 40 wt. % of at least one water-soluble polymer; and at least one nonionic surfactant having a hydrophilic lipophilic balance value of from about 1 to about 10, wherein the film has a thickness of about 50 micrometers or less and disintegrates in tap water in one and a half minutes or less when sloshed at a rate of 0.5 to 1.5 sloshes per second.