Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more.

A polycarbonate resin of the present invention is characterized by comprising repeating units represented by Formula 1, Formula 2, Formula 3 and Formula 4, respectively.

The present disclosure relates to a composition that includes ##STR00001##
where A includes at least one of a carbon-carbon bond or a bridging group, R includes between 0 and 4 of a first hydrocarbon, and n is between 2 and 3,000. In some embodiments of the present disclosure, the bridging group may include a linear hydrocarbon chain and/or a branched hydrocarbon chain. In some embodiments of the present disclosure, the bridging group may include between 1 and 10 carbon atoms.

The present disclosure relates to a composition that includes

##STR00001##

where A includes at least one of a carbon-carbon bond or a bridging group, R includes between 0 and 4 of a first hydrocarbon, and n is between 2 and 3,000. In some embodiments of the present disclosure, the bridging group may include a linear hydrocarbon chain and/or a branched hydrocarbon chain. In some embodiments of the present disclosure, the bridging group may include between 1 and 10 carbon atoms.

A phosphinate copolycarbonate having units of the formula (1) wherein each R.sup.a is independently a halogen atom, C.sub.1-10 alkyl, C.sub.1-10 haloalkyl, C.sub.1-12 alkoxy, C.sub.6-10 aryl, or C.sub.6-12 haloaryl, each X.sup.a is as defined herein, R.sup.e and R.sup.f are independently a halogen atom, C.sub.1-10 alkyl, C.sub.1-10 haloalkyl, C.sub.1-10 alkoxy, C.sub.1-10 haloalkoxy, C.sub.2-10 alkenyl, or C.sub.3-10 cycloalkyl, each R.sup.g is a substituted or unsubstituted C.sub.6-18 aryl, C.sub.1-10 alkyl, C.sub.1-10 haloalkyl, C.sub.1-10 alkoxy, C.sub.1-10 haloalkoxy, C.sub.2-10 alkenyl, C.sub.3-10 cycloalkyl, C.sub.6-10 aryl, or C.sub.6-12 haloaryl, Ar.sup.a and Ar.sup.b are each independently the same or different C.sub.6-18 aryl, a, e, and f are each independently 0 to 4, or 0 to 2 or 0, c is 0 or 1, and x and y represent the molar ratio of each unit in the phosphinate copolycarbonate, and are 0.5:99.5 to 99.5:0.5, or 1:99 to 99:1, or 10:90 to 90:10, or 20:80 to 80:20.

##STR00001##

Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40 C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340 C. or more.

Disclosed an organic-inorganic hybrid composition including a polymer (A) including a triazine ring structure represented by General Formula (1) in a polymer main chain structure;

##STR00001##

wherein, in the formula, R1 is a substituted or unsubstituted alkyl group, aryl group, aralkyl group, amino group, arylamino group, alkylthio group, or arylthio group,

an inorganic particulate (B); and

a surface-treatment agent (C) including an acidic functional group

wherein the polymer (A) is a thermoplastic polymer having a glass transition temperature (Tg) and a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm, and an article and an optical component including the organic-inorganic hybrid composition.

A polycarbonate resin of the present invention comprises: a repeat unit represented by chemical formula 1 in the specification; a repeat unit represented by chemical formula 2; and a repeat unit represented by chemical formula 3. The polycarbonate resin has excellent flame retardancy, thermal resistance, transparency, impact resistance, etc.