US 11,952,490 B2
Polycarbonate resin composition and molded article containing the same
Hyoung Taek Kang, Yongin-si (KR); Keun Hyung Lee, Yongin-si (KR); Young Min Kim, Jeonbuk (KR); Moo Seok Lee, Jeonbuk (KR); Myeung Il Kim, Jeonbuk (KR); and Jae Chan Park, Jeonbuk (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR); and LG CHEM, LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR); and LG CHEM, LTD., Seoul (KR)
Filed on Jul. 27, 2021, as Appl. No. 17/386,048.
Claims priority of application No. 10-2020-0093926 (KR), filed on Jul. 28, 2020.
Prior Publication US 2022/0033651 A1, Feb. 3, 2022
Int. Cl. C08L 69/00 (2006.01); C08K 5/00 (2006.01); C08L 25/14 (2006.01)
CPC C08L 69/00 (2013.01) [C08K 5/0041 (2013.01); C08K 5/005 (2013.01); C08L 25/14 (2013.01); C08L 2203/30 (2013.01)] 19 Claims
 
1. A polycarbonate resin composition containing:
90 wt % to 99 wt % of a polycarbonate resin having a weight average molecular weight in a range from 20,000 g/mol to 80,000 g/mol;
0.3 wt % to 0.5 wt % of an anthraquinone-based black dye having a melting point in a range from 150 ° C. to 160 ° C., and a solubility in water at 25 ° C. in a range from 0.001 mg/L to 0.005 mg/L; and
0.2 wt % to 1.0 wt % of an acrylic polymeric chain extender having a weight average molecular weight in a range from 5,000 g/mol to 50,000 g/mol and a glass transition temperature in a range from 50 ° C. to 70 ° C.