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US 12,503,592 B2Granted
Polyalkylene carbonate-polyactic acid composite, method of preparing the same, and molded article prepared by using the composite
AssigneeLG Chem, Ltd.
InventorsSung Kyoung Kim, Seung Young Park
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Abstract
The present disclosure relates to a polyalkylene carbonate-polylactic acid composite having improved mechanical properties as well as excellent transparency and flexibility, a method of preparing the same, and a molded article prepared by using the polyalkylene carbonate-polylactic acid composite.
Claims9
A polyalkylene carbonate-polylactic acid composite comprising a continuous phase and a dispersed phase,
- wherein a domain size of the dispersed phase is in a range of 0.2 μm to 1.0 μm,
- wherein a halogen component is not included in the composite,
- wherein the composite comprises a polyalkylene carbonate and a polylactic acid in a weight ratio of 1:1 to 7:3,
- wherein a non-halogen ether-based solvent is included in an amount of 0.1 wt % or less in the composite,
- wherein the composite further comprises an aliphatic/aromatic polyester,
- wherein the composite comprises the polyalkylene carbonate, the polylactic acid, and the aliphatic/aromatic polyester in a weight ratio of 1:1:0.1 to 5:5:1, and
- wherein the polyalkylene carbonate-polylactic acid composite is a product of solution blending.
4 more elements
Dependencies are inferred from the claim text.