POLYLACTIC ACID-BASED MULTILAYER SHEET

摘要

Disclosed is a multilayer sheet which is composed of at least three layers, wherein a layer A forms at least one outermost layer and a layer B forms an inner layer. The layer A contains a polylactic acid and a polybutylene succinate resin. When the total mass of the components of the layer A is taken as 100% by mass, the polylactic acid is contained in an amount of not less than 60% by mass but not more than 97.5% by mass. When the total thickness of the multilayer sheet is taken as 100%, the ratio (Xa) of the thickness of the layer A is 10-40%. The layer B contains a polylactic acid and a polybutylene succinate resin. When the total mass of the components of the layer B is taken as 100% by mass, the polylactic acid is contained in an amount of 90% by mass or more but less than 100% by mass. The multilayer sheet has a plane orientation degree (?P) of not less than 0 but not more than 0.002.