Title:
POLYCARBONATE RESIN COMPOSITION
Document Type and Number:
Japanese Patent JP2578573
Kind Code:
B2
Abstract:
PURPOSE: To obtain a polycarbonate resin composition useful for a building material, etc., having sufficient weather resistance by mixing a polycarbonate resin with a benzotriazole compound as an ultraviolet absorber and a coumarin compound or a naphthalimide compound as a fluorescent blightener.
CONSTITUTION: (A) 100 pts.wt. of a polycarbonate resin is mixed with (B) 5-25 pts.wt. of a benzotriazole compound of formula I (R1 is an alkyl, nitro or an alkoxyl (s) is 1-4; Z is a halogen or an alkyl) or formula II (t is 1-3) [e.g. 2(2'- hydroxy-5'-methylphenyl)benzotriazole, etc.) as an ultraviolet absorber and (C) 0.1-10 pts.wt. of one or more a coumarin compound of formula III [R2 is amino (derivative) or OH; R3 and R4 are H, an alkyl or phenyl) (e.g. 3-phenyl-7-amino- coumarin) and a naphthalimide compound of formula IV (R5 and R6 are H or an alkoxy; R7 is H or an alkyl) (e.g. 4-methoxy-N-methylnaphthalimide) as a fluorescent blightener to give the objective resin composition.
Inventors:
OOASHI KAZUHIRO
NAGANORI YUKIE
NISHIHATA TOORU
NAGANORI YUKIE
NISHIHATA TOORU
Application Number:
JP33759893A
Publication Date:
February 05, 1997
Filing Date:
December 28, 1993
Export Citation:
Assignee:
TSUTSUNAKA PURASUCHITSUKU KOGYO KK
International Classes:
C07D249/06; C07D255/04; C08K5/00; C08K5/15; C08K5/1545; C08K5/16; C08K5/3432; C08K5/3467; C08K5/3477; C08L69/00; C09K3/00; (IPC1-7): C08L69/00; C08K5/15; C08K5/3432; C08K5/3467
Attorney, Agent or Firm:
Hisayoshi Shimizu (2 outside)