Abstract: The polylactic acid resin composition of the present invention includes a polylactic acid resin (A) having a D-isomer content of 0 to 2.0 mol % or 98.0 to 100 mol %. The polylactic acid resin composition of the present invention further includes tin oxide (B) in an amount of 0.005 to 10 parts by mass in relation to 100 parts by mass of the polylactic acid resin (A). By using the polylactic acid resin composition of the present invention, a molded body being excellent in crystallinity and heat resistance, and at the same time, having sufficiently excellent moisture-heat durability can be obtained.

Abstract: Provided is a polylactic acid resin composition obtained by adding a carboxylic acid amide and a carboxylic acid ester each of which has at least one polar group in a molecule to a polylactic acid resin reacted with a (meth)acrylate compound. Also provided is a polylactic acid resin molded article which is a molded article obtained by molding the polylactic acid resin composition, manufactured by setting a mold temperature to a glass transition temperature of a polylactic acid resin plus 20° C. or higher and a melting point thereof minus 20° C. or lower, at the time of injection molding the polylactic acid resin composition. Thus, a resin composition in which a moldability is improved at a temperature at which a polylactic acid resin is crystallized, and a molded article therefrom are provided.

Abstract: A polylactic acid-based resin composition including a polylactic acid (A), a multilayered polymer (B) and a multilayered polymer (C), wherein the content of each of the multilayered polymer (B) and the multilayered polymer (C) is 0.5 to 8% by mass of the whole resin composition; the multilayered polymer (B) and the multilayered polymer (C) are each constituted of a core layer(s) and a shell layer(s); the core layer constituting the multilayered polymer (B) contains an acrylic rubber; and the core layer constituting the multilayered polymer (C) contains a composite rubber containing an acrylic component and a silicone component.

Abstract: Disclosed is a resin composition including a polylactic acid resin (A) and a polycarbonate resin (B) and a molded article produced by molding the resin composition. The mass ratio (A/B) between the resins (A) and (B) is 40/60 to 80/20. The ratio (MFRA/MFRB) between the melt flow rate (MFRA) of the polylactic acid resin (A) and the melt flow rate (MFRB) of the polycarbonate resin (B) at 240° C. under a load of 21.2 N is 20 to 600. The polycarbonate resin (B) is particle-dispersed in island shapes in the polylactic acid resin (A) in a range from a surface of the molded article to a depth of 5 ?m and lengths of cross sections of dispersed particles observed in a cross section of the molded article are 0.1 ?m or more.

Abstract: A polylactic acid-based resin composition including a polylactic acid (A), a multilayered polymer (B) and a multilayered polymer (C), wherein the content of each of the multilayered polymer (B) and the multilayered polymer (C) is 0.5 to 8% by mass of the whole resin composition; the multilayered polymer (B) and the multilayered polymer (C) are each constituted of a core layer(s) and a shell layer(s); the core layer constituting the multilayered polymer (B) contains an acrylic rubber; and the core layer constituting the multilayered polymer (C) contains a composite rubber containing an acrylic component and a silicone component.

Abstract: Disclosed is a polylactic acid-based resin composition including a polylactic acid resin, a monocarbodiimide compound and a hydrotalcite compound, wherein the content of the monocarbodiimide compound is 0.1 to 10 parts by mass in relation to 100 parts by mass of the polylactic acid resin and the content of the hydrotalcite compound is 0.05 to 2 parts by mass in relation to 100 parts by mass of the polylactic acid resin.

Abstract: Disclosed is a resin composition forming an adhesive layer between a polylactic acid resin substrate layer and a polyolefin resin substrate layer. The resin composition includes a modified polyolefin resin (A) and a terpene resin (B), and the mass ratio (A)/(B) between the both resins (A) and (B) is 20/80 to 99/1. Alternatively, the resin composition may be a resin composition including 10 to 90% by mass of a polylactic acid resin (C), 5 to 89% by mass of the modified polyolefin resin (A) and 1 to 80% by mass of a hydrogenated petroleum resin (D), with the total amount of these resins constrained to be 100% by mass.

Abstract: Disclosed is a biodegradable resin composition improved in water barrier properties. Also disclosed is a molded body formed from such a resin composition. The biodegradable resin composition comprises 100 parts by mass of a biodegradable polyester resin and 0.1-15 parts by mass of a jojoba oil and/or a polar wax. The biodegradable polyester resin may contain not less than 50% by mass of a plant-based resin. Polylactic acid can be used as the plant-based resin.

Abstract: Disclosed is a biodegradable polyester resin composition, wherein 100 parts by mass of a biodegradable polyester resin is blocked at the terminals thereof with 0.1 to 10 parts by mass of a carbodiimide compound, and the biodegradable polyester resin composition includes 0.1 to 10 parts by mass of a jojoba oil in relation to 100 parts by mass of the biodegradable polyester resin.

Abstract: A biodegradable gas barrier vessel comprising 100 parts of mass of a biodegradable polyester resin having a polylactic acid content of not less than 50% by mass and 0.1 to 10 parts by mass of a phyllosilicate. The degree of crystallization as measured by X-ray diffractometry is not less than 15%, and the coefficient of oxygen permeation as measured under conditions of 20° C. and relative humidity 90% is not more than 50 ml·mm/m2·day·MPa. Since the biodegradable polyester resin reinforced with the phyllosilicate has excellent heat resistance, the molded product can be heat treated at an elevated temperature. Such enhanced heat treatment conditions can further enhance the degree of crystallization of the polyester resin and thus can contribute to significantly improved gas barrier properties.

Abstract: Disclosed is a foam sheet made of a biodegradable resin composition. The biodegradable resin composition contains a wax and/or a polyolefin resin. The biodegradable resin is mainly composed of polylactic acid. Natural candelilla wax or paraffin wax is preferable as the wax. Polyethylene is preferable as the polyolefin resin. Also disclosed are a foam article and a molded container made of such a foam sheet wherein the degree of crystallinity of the biodegradable resin is 10% or more.

Abstract: Disclosed is a resin composition forming an adhesive layer between a polylactic acid resin substrate layer and a polyolefin resin substrate layer. The resin composition includes a modified polyolefin resin (A) and a terpene resin (B), and the mass ratio (A)/(B) between the both resins (A) and (B) is 20/80 to 99/1. Alternatively, the resin composition may be a resin composition including 10 to 90% by mass of a polylactic acid resin (C), 5 to 89% by mass of the modified polyolefin resin (A) and 1 to 80% by mass of a hydrogenated petroleum resin (D), with the total amount of these resins constrained to be 100% by mass.

Abstract: A biodegradable resin composition is provided, which is highly transparent with little agglomeration. The biodegradable resin composition comprises a biodegradable polyester resin, a phyllosilicate, and at least one of a polyether phosphate compound, a polar wax and jojoba oil.

Abstract: A biodegradable polyester resin composition which comprises a thermoplastic polymer comprising 100 parts by mass of an aliphatic polyester (A) and 0.01 to 5 parts by mass of a (meth)acrylic ester (B1) and/or a glycidyl ether (B2, and has a gelation index (1) of not lower than 0.1% and a gelation index (2) of not higher than 0.5%.

Abstract: A flame-retardant biodegradable polyester resin composition which comprises 100 parts by mass of a biodegradable polyester resin, 0.01 to 20 parts by mass of a (meth)acrylate compound, and 20 to 200 parts by mass of a metal oxide and/or a metal hydroxide.

Abstract: Disclosed is a biodegradable polyester resin composition which is obtained by melt-kneading 100 parts by mass of a biodegradable polyester resin (A) containing 70 mol % or more of an ?- and/or a ?-hydroxycarboxylic acid unit, 3 to 30 parts by mass of a polyether/olefin block copolymer resin or a polyether ester amide copolymer resin (B), 0.01 to 10 parts by mass of a (meth)acrylic acid ester compound (C) having in the molecule thereof two or more (meth)acrylic groups, or alternatively one or more (meth)acrylic groups and one or more glycidyl or vinyl groups, and 0.01 to 10 parts by mass of a peroxide (D).

Abstract: Disclosed is a resin composition including a polylactic acid resin (A), a polycarbonate resin (B) and a methyl methacrylate copolymer (C). The mass ratio (A/B) between the resins (A) and (B) is 40/60 to 80/20. The ratio (MFRA/MFRB) between the melt flow rate (MFRA) of the resin (A) and the melt flow rate (MFRB) of the resin (B) is less than 10 at 240° C. under a load of 21.2 N. The copolymer (C) is a copolymer between methyl methacrylate and a (meth)acrylic acid ester, and the weight average molecular weight (Mw) of the copolymer (C) is 500,000 or more. The content of the copolymer (C) is 0.

Abstract: A biodegradable resin composition is provided, which is highly transparent with little agglomeration. The biodegradable resin composition comprises a biodegradable polyester resin, a phyllosilicate, and at least one of a polyether phosphate compound, a polar wax and jojoba oil.

Abstract: There is disclosed a biodegradable resin composition containing 100 parts by mass of a biodegradable polyester resin containing not less than 50% by mass of polylactic acid, 0.1 to 10 parts by mass of a layered silicate, 0.1 to 5 parts by mass of a carbodiimide compound and 0.01 to 5 parts by mass of a phosphite organic compound. Alternatively, the biodegradable resin composition contains a phosphite organic compound and at least one additive selected from the group consisting of a hindered phenol compound, a benzotriazole compound, a triazine compound and a hindered amine compound in an amount of 0.01 to 5 parts by mass in total, instead of containing 0.01 to 5 parts by mass of the phosphite organic compound.

Abstract: Disclosed is a biodegradable resin composition improved in water barrier properties. Also disclosed is a molded body formed from such a resin composition. The biodegradable resin composition comprises 100 parts by mass of a biodegradable polyester resin and 0.1-15 parts by mass of a jojoba oil and/or a polar wax. The biodegradable polyester resin may contain not less than 50% by mass of a plant-based resin. Polylactic acid can be used as the plant-based resin.