A polycarbonate-based resin composition, including: a polycarbonate-based resin satisfying requirements (1) and (2); and an inorganic filler blended into the polycarbonate-based resin, wherein a ratio of the filler in 100 mass % of a total amount of the polycarbonate-based resin and the filler is from 0.1 mass % or more to 50 mass % or less: (1) the polycarbonate-based resin contains a polycarbonate-polyorganosiloxane copolymer containing a polycarbonate block formed of a specific repeating unit and a polyorganosiloxane block containing a specific repeating unit, and an aromatic polycarbonate-based resin except the polycarbonate-polyorganosiloxane copolymer; and (2) the polycarbonate-based resin has a structure in which a domain containing the polyorganosiloxane block is present in a matrix containing the aromatic polycarbonate-based resin as a main component, and a domain containing at least one selected from a block derived from the aromatic polycarbonate-based resin and the polycarbonate block is present inside the domain.

Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a):
15≤wM1  (F1a)
wherein wM1 represents the average content of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined by using a polycarbonate as a conversion reference of from 56,000 or more to 200,000 or less among polycarbonate-polyorganosiloxane copolymers obtained through the separation of the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography.

Provided is a polycarbonate-based resin composition, including: a polycarbonate-based resin (5) containing 1 mass % or more to 100 mass % or less of a polycarbonate-polyorganosiloxane copolymer (A), which contains a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit; and 0.05 part by mass or more to 0.5 part by mass or less of a release agent (B) with respect to 100 parts by mass of the polycarbonate-based resin (S), wherein the copolymer (A) contains a polycarbonate-polyorganosiloxane copolymer (Ax) in which the polyorganosiloxane block (A-2) has an average chain length of from 20 to 65, and a polycarbonate-polyorganosiloxane copolymer (Ay) in which the polyorganosiloxane block (A-2) has an average chain length longer than the average chain length of the copolymer (Ax) by 10 or more.

The present invention relates to a method for producing an organooxysilyl-crosslinked polymer by reacting a polyether carbonate polyol which contains carbon-carbon double bonds with a polysiloxane compound in the presence of a suitable catalyst. Suitable polysiloxane compounds have at least two Si—H bonds. This invention also relates to organooxysilyl-crosslinked polymers which are formed by this process.

The present invention relates to a method for producing an organooxysilyl-crosslinked polymer by reacting a polyether carbonate polyol which contains carbon-carbon double bonds with a polysiloxane compound in the presence of a suitable catalyst. Suitable polysiloxane compounds have at least two Si—H bonds. This invention also relates to organooxysilyl-crosslinked polymers which are formed by this process.

Provided is a polycarbonate-based resin composition, including: 50 mass % or more to 99 mass % or less of a polycarbonate-based resin (S) containing a polycarbonate-polyorganosiloxane copolymer (A) containing a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit, and an aromatic polycarbonate-based resin (B) except the polycarbonate-polyorganosiloxane copolymer (A); and 1 mass % or more to 50 mass % or less of a polyester-based resin (C), wherein the polyorganosiloxane block (A-2) has an average chain length of from 50 or more to 500 or less.

A thermoplastic resin composition and a molded article formed using the same. The thermoplastic resin composition includes: a polycarbonate resin; a first polycarbonate-polysiloxane copolymer resin; a second polycarbonate-polysiloxane copolymer resin; and a glycol-modified polyester resin, wherein the first polycarbonate-polysiloxane copolymer resin includes a polysiloxane block having an average degree of polymerization of about 30 to about 45 and the second polycarbonate-polysiloxane copolymer resin includes a polysiloxane block having an average degree of polymerization of about 70 to about 100. The thermoplastic resin composition can have good properties in terms of transparency, impact resistance, chemical resistance, and/or hydrolysis resistance.

Provided are: a polycarbonate-based resin composition, including a polycarbonate-based resin (A) containing a polycarbonate-polyorganosiloxane copolymer (A1) having a predetermined structure, 0.1 part by mass or more to 40 parts by mass or less of a white pigment (B) with respect to 100 parts by mass of the polycarbonate-based resin (A), and 0.005 part by mass or more to 1.0 part by mass or less of a metal deactivator (C) with respect to 100 parts by mass of the polycarbonate-based resin (A); and a molded article thereof.

The present invention relates to a polycarbonate composition and the process for the production thereof and molded articles. The polycarbonate composition provided in the present invention comprises A) 8-70 wt. % of a polycarbonate component, B) 25-90 wt. % of a polysiloxane-polycarbonate copolymer component, C) a flame retardant component, which comprises 0.5-6 wt. % of a cyclic phosphazene of formula (X) and D) an impact modifier component, which comprises 0.5-6 wt. % of methyl methacrylate-butadiene-styrene, with the above weight percentages based on said polycarbonate composition as 100 wt. %. The polycarbonate composition provided in the present invention has a high flame-retardant level, an excellent low-temperature impact-resistant property and good heat resistance, and is suitable for the use requirement of casings for electrical devices which have relatively high flame-retardant levels (such as UL94 5VB) and require an excellent low-temperature impact-resistant property.

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Provided are a copolycarbonate- and a polycarbonate composition comprising the same. The copolycarbonate comprises repeat units of the following Chemical Formula 1 and repeat units of the following Chemical Formula 2:

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