Polylactic acid resin composition and resin molded article thereof
AssigneeDai-Ichi Kogyo Seiyaku Co., Ltd.
InventorsHideaki Onishi, Ken Morishita
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Abstract
Provided are a polylactic acid resin composition excellent in impact resistance, migration resistance, and heat 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 of a polyol and a polyol dehydration condensate, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a fatty acid amide.
Claims8
A polylactic acid resin composition comprising:
- (i) a polylactic acid;
- (ii) a reaction product of:
- at least one of a polyol and a polyol dehydration condensate selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol,
- an alkylene oxide comprising ethylene oxide, wherein said ethylene oxide accounts for over half of said alkylene oxide, and
- a fatty acid having 12 to 24 carbon atoms;
- and
- (iii) a fatty acid amide,
- wherein a content of the reaction product (ii) falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of the polylactic acid (i),
- wherein a content of the fatty acid amide (iii) falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of the polylactic acid (i),
- wherein the reaction product (ii) contains 20 to 95 wt % of an oxyethylene group, and contains in more than 2 and less than or equal to 9 ester group on average in a molecule thereof,
- wherein the fatty acid amide (iii) is selected from the group consisting of fatty acid monoamides, fatty acid bisamides, hydroxyl group-containing fatty acid monoamides, hydroxyl group-containing fatty acid bisamides, and
- wherein the fatty acid amide (iii) is derived from a fatty acid having 8 to 24 carbon atoms.
A resin molded article comprising a polylactic acid resin composition comprising:
- (i) a polylactic acid;
- (ii) a reaction product of:
- at least one of a polyol and a polyol dehydration condensate selected from the group consisting of glycerin, erythritol, pentaerythritol, xylitol, sorbitol, mannitol, galactitol, and maltitol,
- an alkylene oxide comprising ethylene oxide, wherein said ethylene oxide accounts for over half of said alkylene oxide, and
- a fatty acid having 12 to 24 carbon atoms;
- and
- (iii) a fatty acid amide,
- wherein a content of the reaction product (ii) falls within a range of 2 to 15 parts by weight with respect to 100 parts by weight of the polylactic acid (i),
- wherein a content of the fatty acid amide (iii) falls within a range of 0.1 to 2 parts by weight with respect to 100 parts by weight of the polylactic acid (i),
- wherein the reaction product (ii) contains 20 to 95 wt % of an oxyethylene group, and contains more than 2 and less than or equal to 9 ester group on average in a molecule thereof,
- wherein the fatty acid amide (iii) is selected from the group consisting of fatty acid monoamides, fatty acid bisamides, hydroxyl group-containing fatty acid monoamides, hydroxyl group-containing fatty acid bisamides, and
- wherein the fatty acid amide (iii) is derived from a fatty acid having 8 to 24 carbon atoms.
Dependencies are inferred from the claim text.