Polylactic acid resin composition and resin molded article thereof
AssigneeDai-Ichi Kogyo Seiyaku Co., Ltd.
InventorsHideaki Onishi, Ken Morishita
Life of this patent
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Abstract
Provided are a polylactic acid resin composition excellent in transparency, heat resistance, and migration resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 8 to 24 carbon atoms; and a fatty acid amide having a hydroxyl group.
Claims24
A polylactic acid resin composition, comprising:
- (i) a polylactic acid;
- (ii) a reaction product of:
- at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof,
- an alkylene oxide comprising ethylene oxide, wherein the ethylene oxide accounts for over half of the alkylene oxide, and
- a fatty acid comprising 8 to 24 carbon atoms, and
- (iii) a fatty acid amide comprising a hydroxyl group;
- wherein the fatty acid amide (iii) comprises a bisamide compound obtained by reacting a fatty acid comprising 8 to 24 carbon atoms and a hydroxyl group with a compound comprising two amino groups,
- wherein a content of the reaction product (ii) falls within a range of 0.5 to 10 parts by weight with respect to 100 parts by weight of the polylactic acid (i), and
- wherein a content of the fatty acid amide (iii) falls within a range of 0.1 to 0.7 parts by weight with respect to 100 parts by weight of the polylactic acid (i).
A resin molded article comprising a polylactic acid resin composition comprising:
- (i) a polylactic acid;
- (ii) a reaction product of:
- at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof,
- an alkylene oxide comprising ethylene oxide, wherein the ethylene oxide accounts for over half of the alkylene oxide, and
- a fatty acid comprising 8 to 24 carbon atoms, and
- (iii) a fatty acid amide comprising a hydroxyl group;
- wherein the fatty acid amide (iii) comprises a bisamide compound obtained by reacting a fatty acid comprising 8 to 24 carbon atoms and a hydroxyl group with a compound comprising two amino groups,
- wherein a content of the reaction product (ii) falls within a range of 0.5 to 10 parts by weight with respect to 100 parts by weight of the polylactic acid (i), and
- wherein a content of the fatty acid amide (iii) falls within a range of 0.1 to 0.7 parts by weight with respect to 100 parts by weight of the polylactic acid (i).
Dependencies are inferred from the claim text.