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.

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 is a polycarbonate resin composition, including: an aromatic polycarbonate resin (A); a predetermined antioxidant (B1); a phenol-based antioxidant (C); an alicyclic epoxy compound (D); and a UV absorber (E), wherein a content of the component (B1) is 0.01 to 0.08 part by mass, a content of the component (C) is 0.005 to 0.15 part by mass, a content of the component (D) is 0.005 to 0.2 part by mass, and a content of the component (E) is 0.1 to 0.4 part by mass with respect to 100 parts by mass of the component (A), and wherein the polycarbonate resin composition is substantially free of bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphite (Z1) and triphenylphosphine (Z2).

Provided is a polycarbonate resin composition, including: an aromatic polycarbonate resin (A); a predetermined antioxidant (B1); a phenol-based antioxidant (C); an alicyclic epoxy compound (D); and a UV absorber (E), wherein a content of the component (B1) is 0.01 to 0.08 part by mass, a content of the component (C) is 0.005 to 0.15 part by mass, a content of the component (D) is 0.005 to 0.2 part by mass, and a content of the component (E) is 0.1 to 0.4 part by mass with respect to 100 parts by mass of the component (A), and wherein the polycarbonate resin composition is substantially free of bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphite (Z1) and triphenylphosphine (Z2).

The problem of the present invention is to provide a biodegradable resin composition that can be easily molded in a short time, with molded bodies therefrom having appropriate flexibility. The resin composition for solving the above problem comprises 100 parts by mass of poly(butylene adipate/terephthalate) and 1-10 parts by mass of an aliphatic polyester having a certain structure. The amount of the poly(butylene adipate/terephthalate) is 80% by mass or more based on the total amount.

The problem of the present invention is to provide a biodegradable resin composition that can be easily molded in a short time, with molded bodies therefrom having appropriate flexibility. The resin composition for solving the above problem comprises 100 parts by mass of poly(butylene adipate/terephthalate) and 1-10 parts by mass of an aliphatic polyester having a certain structure. The amount of the poly(butylene adipate/terephthalate) is 80% by mass or more based on the total amount.

Provided are: a composition that can impart a thermoplastic resin with excellent transparency and physical properties; a thermoplastic resin composition containing the same; and a molded article thereof. The composition contains: (A) a cyclic organophosphate aluminum salt represented by Formula (1) below, wherein 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; (B) a sodium carboxylate; and (C) a fatty acid metal salt represented by Formula (2) below, wherein R.sup.6 represents a group which is introduced to an aliphatic organic acid having 10 to 30 carbon atoms and M.sup.1 represents lithium or potassium, wherein the following ranges are satisfied in terms of molar ratio: (C)/(B)=0.30 to 5.00, and (A)/{(B)+(C)}=0.15 to 0.70.

##STR00001##

Provided are: a composition that can impart a thermoplastic resin with excellent transparency and physical properties; a thermoplastic resin composition containing the same; and a molded article thereof. The composition contains: (A) a cyclic organophosphate aluminum salt represented by Formula (1) below, wherein 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; (B) a sodium carboxylate; and (C) a fatty acid metal salt represented by Formula (2) below, wherein R.sup.6 represents a group which is introduced to an aliphatic organic acid having 10 to 30 carbon atoms and M.sup.1 represents lithium or potassium, wherein the following ranges are satisfied in terms of molar ratio: (C)/(B)=0.30 to 5.00, and (A)/{(B)+(C)}=0.15 to 0.70.

##STR00001##

Provided are: a composition that can impart a thermoplastic resin with excellent transparency and physical properties; a thermoplastic resin composition containing the same; and a molded article thereof. The composition contains: (A) a cyclic organophosphate aluminum salt represented by Formula (1) below, wherein 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; (B) a sodium carboxylate; and (C) a fatty acid metal salt represented by Formula (2) below, wherein R.sup.6 represents a group which is introduced to an aliphatic organic acid having 10 to 30 carbon atoms and M.sup.1 represents lithium or potassium, wherein the following ranges are satisfied in terms of molar ratio: (C)/(B)=0.30 to 5.00, and (A)/{(B)+(C)}=0.15 to 0.70.

##STR00001##