Polycarbonate-based resin composition

Claim 2

A polycarbonate-based resin composition comprising 6 to 90% by weight of a polycarbonate/polyorganosiloxane copolymer, 10 to 60% by weight of glass fibers and 0 to 84% by weight of a polycarbonate resin, the amount of said polyorganosiloxane ac­counting for 0.5 to 40% by weight of said resin components.

Claim 3

The polycarbonate-based resin composition as claimed in Claim 1, wherein the polycarbonate/polyorganosiloxane copolymer is comprised of a polycarbonate segment having repeating units expressed by the following formula I: wherein: Z is single bond, ether bond, alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cyclo­alkylidene group having 5 to 15 carbon atoms, a sulfonyl group, a sulfoxide group, a carbonyl group, sulfide group or a group: R¹ and R², which may be identical with or different from each other, each stand for a hydrogen atom, a halogen atom or an alkyl group having 1 to 8 carbon atoms, m and n each stand for an interger of 1 to 4, provided that when m is 2 or more, R¹ may be identical or different and when n is 2 or more, R² may be identical or different, and ℓ is between 3 and 50, and a polyorganosiloxane segment having repeating units expressed by the following formula II: wherein: R³, R⁴ and R⁵, which may be identical with or different from one another, each stand for a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a phenyl group, and p and q each are an interger of 1 or more.

Claim 4

The polycarbonate-based resin composition as claimed in Claim 1, wherein the amount of the polycarbonate/poly­organosiloxane copolymer is 15 to 80% by weight.

Claim 5

The polycarbonate-based resin composition as claimed in Claim 1, wherein the glass fiber is surface-treated.

Claim 6

The polycarbonate-based resin composition as claimed in Claim 1, wherein the amount of the glass fiber is 15 to 55% by weight.

Claim 7

The polycarbonate-based resin composition as claimed in Claim 1, wherein the polycarbonate has a viscosity-average molecular weight of 10,000 to 100,000.

Claim 8

The polycarbonate-based resin composition as claimed in Claim 1, wherein the amount of the polycarbonate is 0 to 70% by weight.

Claim 9

The polycarbonate-based resin composition as claimed in Claim 1, wherein the amount of the polyorganosiloxane is 1.0 to 35% by weight of the resin components.