Patent ID: 9580561
Date: 2017-02-28
CPC Classifications: C08J,C08L

Claim:
1. A method for manufacturing a polylactic acid stereocomplex film, comprising the steps of: (1) selecting a solvent whose boiling point ranges from 39.6° C. to 130.5° C.; (2) calculating minimum evaporation time required to achieve 100% of stereocomplex crystals by evaporating the selected solvent using Equation 1 wherein x is the boiling point of the selected solvent, and y is the minimum evaporation time required to achieve 100% of stereocomplex crystals by evaporating the selected solvent in hours; (3) mixing only poly- (4) evaporating the selected solvent for the minimum evaporation time calculated in step (2) at 20˜30° C., wherein the polylactic acid stereocomplex film consists of 100% of stereocomplex crystals of the poly- the minimum evaporation time calculated in step (2) ranges from 0.6 hour to 50.4 hours.