The present disclosure relates to a polyester resin composition including a polyester resin including a diol residue and a dicarboxylic acid residue, wherein the diol residue includes a cyclohexanedimethanol residue and the dicarboxylic acid residue includes an isophthalic acid residue and a terephthalic acid residue, wherein an amount of the isophthalic acid residue is 0 to 20 mol % when a total amount of the dicarboxylic acid residue is considered as 100 mol %, wherein an amount of the cyclohexanedimethanol residue is 50 to 100 mol % when a total amount of the diol residue is considered as 100 mol %, wherein the polyester resin composition includes an antioxidant, and wherein the antioxidant includes a phenol-based antioxidant, a phosphorus-based antioxidant, and a sulfur-based antioxidant.

The present disclosure relates to a polyester resin composition including a polyester resin including a diol residue and a dicarboxylic acid residue, wherein the diol residue includes a cyclohexanedimethanol residue and the dicarboxylic acid residue includes an isophthalic acid residue and a terephthalic acid residue, wherein an amount of the isophthalic acid residue is 0 to 20 mol % when a total amount of the dicarboxylic acid residue is considered as 100 mol %, wherein an amount of the cyclohexanedimethanol residue is 50 to 100 mol % when a total amount of the diol residue is considered as 100 mol %, wherein the polyester resin composition includes an antioxidant, and wherein the antioxidant includes a phenol-based antioxidant, a phosphorus-based antioxidant, and a sulfur-based antioxidant.

In an embodiment, a method for the manufacture of an injection molded article in an injection mold comprises at least one flow length of at least 50 cm, the flow length being defined as the shortest distance between a point of injection in the mold and an inner mold wall, the method comprising injection molding a polycarbonate composition comprising an aromatic polycarbonate, from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of an epoxy additive having at least two epoxy groups per molecule, and from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of a phenolic diphosphite derived from pentaerythritol.

In an embodiment, a method for the manufacture of an injection molded article in an injection mold comprises at least one flow length of at least 50 cm, the flow length being defined as the shortest distance between a point of injection in the mold and an inner mold wall, the method comprising injection molding a polycarbonate composition comprising an aromatic polycarbonate, from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of an epoxy additive having at least two epoxy groups per molecule, and from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of a phenolic diphosphite derived from pentaerythritol.

In an embodiment, a method for the manufacture of an injection molded article in an injection mold comprises at least one flow length of at least 50 cm, the flow length being defined as the shortest distance between a point of injection in the mold and an inner mold wall, the method comprising injection molding a polycarbonate composition comprising an aromatic polycarbonate, from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of an epoxy additive having at least two epoxy groups per molecule, and from 0.01 wt. % to 0.30 wt. % based on the weight of the polycarbonate composition of a phenolic diphosphite derived from pentaerythritol.

Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320° C., after a lapse of 3,000 hours under an environment at 85° C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320° C., after a lapse of 3,000 hours under an environment at 85° C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320° C., after a lapse of 3,000 hours under an environment at 85° C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. A resin additive composition is composed of a phosphoric acid ester compound (A) represented by the following general formula (1): ##STR00001##
(in the formula (1), R.sup.1 to R.sup.4 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 9 carbon atoms, and R.sup.5 represents an alkylidene group having 1 to 4 carbon atoms) and a fatty acid sodium salt (B) represented by the following general formula (2): ##STR00002##
(in the formula (2), R.sup.6 represents a group introduced From an aliphatic organic acid having 7 to 30 carbon atoms), and the mass ratio of (B)/(A) is 0.55 to 2.0.

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. A resin additive composition is composed of a phosphoric acid ester compound (A) represented by the following general formula (1): ##STR00001##
(in the formula (1), R.sup.1 to R.sup.4 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 9 carbon atoms, and R.sup.5 represents an alkylidene group having 1 to 4 carbon atoms) and a fatty acid sodium salt (B) represented by the following general formula (2): ##STR00002##
(in the formula (2), R.sup.6 represents a group introduced From an aliphatic organic acid having 7 to 30 carbon atoms), and the mass ratio of (B)/(A) is 0.55 to 2.0.