Polycarbonate/polyorganosiloxane copolymer and resin composition including said copolymer

A polycarbonate-polyorganosiloxane copolymer, which is produced by using a diol monomer (a1) and a polyorganosiloxane (a2) satisfying the following condition, comprising:

• a polyorganosiloxane block (A-1) including a repeating unit represented by the following formula (1A);
• and
• a polycarbonate block (A-2) formed of a repeating unit represented by the following formula (2):
• a mixture, which is obtained by bringing the diol monomer (a1), the polyorganosiloxane (a2), a carbonic acid diester, and a basic catalyst present at the same amount ratio as that at a time of production of the polycarbonate-polyorganosiloxane copolymer into contact with each other at from 100° C. to 250° C. for from 0.5 hour to 5 hours, has a haze value of 30 or less measured under conditions of 23° C. and an optical path length of 10 mm in conformity with ISO 14782:1999:
• wherein R1 to R4 may be identical to or different from each other, and each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkylaryl group whose alkyl group moiety has 1 to 10 carbon atoms, “a” represents an integer of from 2 to 500,
• R6 represents an arylene group having 6 to 20 carbon atoms, an alkylene group having 1 to 10 carbon atoms, or an alkylarylene group whose alkyl group moiety has 1 to 10 carbon atoms, and may contain, as a functional group, —O—, —COO—, —CO—, —S—, —NH—, or —NR111—, R111 represents an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms,
• R10 represents a divalent aliphatic hydrocarbon group having 2 to 40 carbon atoms or a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and may be substituted with a substituent, the divalent aliphatic hydrocarbon group, the divalent alicyclic hydrocarbon group, or the divalent aromatic hydrocarbon group may contain at least one heteroatom selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or at least one halogen atom selected from a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom,
• R40′ represents a repeating chain structure in which at least two structures are linked to each other, wherein each of the at least two structures comprises at least one hydrocarbon group selected from the group consisting of a divalent aliphatic hydrocarbon group having 1 to 20 carbon atoms, a divalent alicyclic hydrocarbon group having 3 to 20 carbon atoms, and a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and each of the at least two structures comprises at least one oxygen atom, and wherein the repeating chain structure is selected from the group consisting of polyether, polyacrylate, polyester and polycarbonate,
• R40″ represents a divalent aliphatic hydrocarbon group having 1 to 20 carbon atoms, a divalent alicyclic hydrocarbon group having 3 to 20 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and may be substituted with a substituent,
• “e” and “u” each represent 0 or 1, and
• “y” represents an integer of from 10 to 500.