Patent ID: 8673432
Filing Date: 2014-03-18
Classification: B32B,C08J,C08K,Y10T

Abstract:
1. An aliphatic polyester-based sheet comprising at least Layer A comprising an aliphatic polyester, wherein crystallinity χ A of said Layer A is 3 to 60% and said Layer A contains a crystal nucleating agent comprising at least one selected from the group consisting of an aliphatic carboxylic acid amide and an N-substituted urea and a compound having hydrogen bonding properties with the crystal nucleating agent comprising at least one selected from the group consisting of sorbitol-based compounds and polypeptides and being melt-mixed or solution-mixed with the crystal nucleating agent before being added to the aliphatic polyester, wherein an amount of lactic acid oligomer component contained in the sheet is less than 0.3 mass % and haze of the entire sheet is 3% or less.