US 11,655,354 B2
Coating-free metallic thermoplastic resin composition having improved metallic texture and gloss
Min Jin Choi, Gyeonggi-do (KR); Se Jong Hwang, Gyeonggi-do (KR); Ki Hun Park, Chungcheongnam-do (KR); and Jin Hyung Jeong, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Motors Corporation, Seoul (KR); and Daewon Chemical Co., Ltd, Cheonan (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Motors Corporation, Seoul (KR); and Daewon Chemical Co., Ltd, Chungcheongnam-do (KR)
Filed on May 6, 2020, as Appl. No. 16/868,341.
Claims priority of application No. 10-2019-0166590 (KR), filed on Dec. 13, 2019.
Prior Publication US 2021/0179838 A1, Jun. 17, 2021
Int. Cl. C08K 3/08 (2006.01); C08L 53/00 (2006.01); C08K 9/08 (2006.01); C08K 5/00 (2006.01); C08K 5/13 (2006.01); C08K 5/3492 (2006.01); C08K 5/49 (2006.01)
CPC C08K 3/08 (2013.01) [C08K 5/005 (2013.01); C08K 5/13 (2013.01); C08K 5/3492 (2013.01); C08K 5/49 (2013.01); C08K 9/08 (2013.01); C08L 53/00 (2013.01); C08L 2201/08 (2013.01); C08L 2207/04 (2013.01)] 8 Claims
 
1. A coating-free metallic thermoplastic resin composition, comprising:
an amount of about 97 wt % of a weather resistant thermoplastic resin;
an amount of about 4 wt % of a masterbatch;
an amount of about 0.4 wt % of a weather resistant stabilizer;
an amount of about 0.2 wt % of an antioxidant;
an amount of about 3 wt % of a scratch resistant agent; and
an amount of about 0.2 to 0.4 wt % of a dispersant,
all the wt % based on the total weight of the coating-free metallic thermoplastic resin composition,
wherein the masterbatch is a metallic component and a polymer resin, and
the polymer resin is a styrene-acrylonitrile (SAN) resin,
the dispersant is MAH-g-WAX,
the weather resistant stabilizer is an UV absorber and a light stabilizer,
the UV absorber is a benzotriazole-based compound,
the light stabilizer is a hindered amine-based compound,
the antioxidant is a phenol-based antioxidant and a phosphorous-based antioxidant.