Polyalkylenecarbonate resin composition and method for preparing the same
AssigneeLG Chem, Ltd.
InventorsBo Ra SHIN, So Hee BANG, Min Ji AHN, Sang Woo KIM, Seo Yeon LIM
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Abstract
A polyalkylene carbonate resin composition with excellent thermal stability, and a method for preparing the same. The polyalkylene carbonate resin composition includes polyalkylenecarbonate, an organic acid, and at least one additive selected from among an antioxidant and a hydrolysis inhibitor. The organic acid is included in an amount of 0.001 parts by weight or more and less than 0.5 parts by weight with respect to 100 parts by weight of the polyalkylenecarbonate.
Claims19
A polyalkylenecarbonate resin composition comprising:
- polyalkylenecarbonate;
- an organic acid;
- and
- at least one additive selected from an anti-oxidant and a hydrolysis inhibitor,
- wherein the organic acid is included in an amount of 0.001 parts by weight or more and less than 0.5 parts by weight with respect to 100 parts by weight of the polyalkylenecarbonate.
A method for preparing a polyalkylenecarbonate resin composition, the method comprising:
- preparing a polymer including polyalkylenecarbonate by polymerizing an alkylene oxide compound and carbon dioxide in a solvent in the presence of a catalyst as a step (S1);
- adding, to the polymer, at least one additive selected from an organic acid, an anti-oxidant, and a hydrolysis inhibitor, and agitating as a step (S2);
- and
- removing the solvent as a step (S3),
- wherein the organic acid is added in an amount equal to or more than 0.001 parts by weight and less than 0.5 parts by weight with respect to 100 parts by weight of a polyalkylene carbonate solid content in the polymer.
Dependencies are inferred from the claim text.