Flame retardant resin compositions and molded articles
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsAkinari Itagaki, Masaaki Yamaya
Life of this patent
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Abstract
A flame retardant resin composition is provided comprising (A) 100 pbw of a resin comprising 10-100% by weight of an aromatic polycarbonate resin and 90-0% by weight of another thermoplastic resin, (B) 0.1-9.9 pbw of an organopolysiloxane containing silicon atom-bonded phenyl groups, and (C) 0.1-9.9 pbw of an organopolysiloxane containing silicon atom-bonded methyl groups and Si—H groups and free of an aromatic hydrocarbon group. The composition has satisfactory flame retardant effects and safety and minimal environmental load features, and molded articles can be effectively produced therefrom.
Claims13
A flame retardant resin composition comprising
- (A) 100 parts by weight of a resin comprising 10 to 100% by weight of an aromatic polycarbonate resin and 90 to 0% by weight of a thermoplastic resin other than the aromatic polycarbonate resin,
- (B) 0.1 to 9.9 parts by weight of an organopolysiloxane containing silicon atom-bonded phenyl groups in a molecule and having the average compositional formula (1):
- R1mR2n(OR3 )p(OH)qSiO(4−m−n−p−q)/2 (1)
- wherein R1 is phenyl, R2 is hydrogen or a monovalent hydrocarbon group of 1 to 6 carbon atoms excluding phenyl, R3 is a monovalent hydrocarbon group of 1 to 4 carbon atoms, letters m, n, p and q are numbers satisfying 0.1≦m≦2.0, 0.2≦n≦2.5, 0≦p≦1.5, 0≦q≦0.35 and 0.9≦m+n+p+q≦2.8, and
- (C) 0.1 to 9.9 parts by weight of an organopolysiloxane containing silicon atom-bonded methyl groups and Si—H groups in a molecule and free of an aromatic hydrocarbon group,
- the amount of components (B) and (C) combined being 0.2 to 10 parts by weight.
Dependencies are inferred from the claim text.