Polycarbonate resin composition and formed product thereof
AssigneeMitsubishi Engineering-Plastics Corporation
InventorToshiki MONDEN
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Abstract
In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.
Claims15
A polycarbonate resin composition, comprising:
- 100 parts by mass of a polycarbonate resin;
- 0.001 to 1 part by mass of a metal salt compound;
- and
- 0.005 to 5 parts by mass of a polycarbosilane compound,
- wherein the polycarbosilane compound has a main chain structure comprising a hydrocarbon residue and at least one of structural units selected from the group consisting of formula (1), formula (2), and formula (3):
- wherein
- R1, R2, and R3 each independently represent a monovalent hydrocarbon group, a hydrogen atom, or a silyl group,
- a, b, and c each independently represent 0 or 1, and
- a plurality of R1s, R2s, and R3s in the main chain structure are each the same or different.
Dependencies are inferred from the claim text.