| abstract |
Thermoplastic film compositions are described that include a polymer blend of a number of essentially immiscible polymer components. The composition comprises about 5% to about 45% by weight plasticized natural polymer, about 5% to about 40% by weight polyolefin, a biodegradable polymer and a compatibilizer having both polar and non-polar portions in the same polymer molecule. Include. The total plasticized natural and biodegradable polymer components make up a multiphase or predominant phase (≧ 51 wt%), with the petroleum-based olefin polymer forming a hydrophobic phase. The composition can be made into a film comprising at least one renewable, natural polymer component. Also disclosed are articles of manufacture that can use such films. |