Polycarbonate resin composition
AssigneeIdemitsu Petrochemical Co., Ltd.
InventorsShiro Kozakura, Shigeki Kuze, Kenji Tanaka
Life of this patent
Estimating the term…
Abstract
A polycarbonate resin composition comprising 1 to 99% by weight of a branched polycarbonate having a branched nucleus structure derived from a branching agent represented by the general formula: ##STR1## wherein R is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and R.sup.1 to R.sup.6 are hydrogen atoms, alkyl groups having 1 to 5 carbon atoms or halogen atoms, respectively, and 99 to 1% by weight of a thermoplastic polyester resin. The polycarbonate resin composition is excellent in fluidability, solvent resistance and moldability.
Claims8
A polycarbonate resin composition consisting essentially of
- (A) 30 to 98% by weight of a branched polycarbonate having a branched nucleus structure derived from a branching agent represented by the formula (I):
- ##STR6## wherein R is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and R.sup.1 to R.sup.6 are hydrogen atoms, alkyl groups having 1 to 5 carbon atoms or halogen atoms, respectively, the branched polycarbonate having a viscosity average molecular weight of 15,000 to 40,000, and an acetone-soluble matter of not more than 3.5% by weight, and
- (B) 70 to 2% by weight of polybutylene terephthalate resin.
A polycarbonate resin composition consisting essentially of (A) 40 to 94% by weight of a branched polycarbonate having a branched nucleus structure derived from a branching agent represented by the formula (I):
- ##STR9## wherein R is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and R.sup.1 and R.sup.6 are hydrogen atoms, alkyl groups having 1 to 5 carbon atoms or halogen atoms, respectively,
- the branched polycarbonate having a viscosity average molecular weight of 15,000 to 40,000, and an acetone-soluble matter of not more than 3.5% by weight, and (B) 5 to 59% by weight of a polybutylene terephthalate resin and 1 to 50% by weight of a rubber elastomer as a component (C), the total amount of the component (A), the component (B) and the component (C) being 100% by weight.
Dependencies are inferred from the claim text.