US 9,809,691 B2
Polyolefin composite composition for automotive airduct
Seul Yi, Seoul (KR); Boo Youn An, Seoul (KR); Dae Sik Kim, Gyeonggi-do (KR); Kyeong Hoon Jang, Seoul (KR); In Soo Han, Gyeonggi-do (KR); You Jin Park, Gyeonggi-do (KR); Byung Kook Nam, Daejeon (KR); Hyeung Shin Lee, Daejeon (KR); and Hyun Jin Kim, Daejeon (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Lotte Chemical Corporation, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); Lotte Chemical Corporation, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Oct. 4, 2016, as Appl. No. 15/284,782.
Prior Publication US 2017/0267826 A1, Sep. 21, 2017
Int. Cl. C08L 23/06 (2006.01); C08L 23/12 (2006.01); B60H 1/26 (2006.01); C08J 9/00 (2006.01); B60H 1/00 (2006.01)
CPC C08J 9/0061 (2013.01) [B60H 1/00564 (2013.01); C08J 9/0066 (2013.01); C08L 23/06 (2013.01); C08J 2323/06 (2013.01); C08J 2423/12 (2013.01); C08L 2205/02 (2013.01); C08L 2207/062 (2013.01)] 7 Claims
 
1. A polyolefin composite composition, comprising:
a polyethylene resin of 65 to 94.5 wt, %;
a long chain branched polypropylene resin of 5 to 30 wt. % with crystallization of 20 to 45%; and
an inorganic filler of 0.5 to 5 wt. %, based on the overall weight of the polyolefin composite composition;
wherein the long chain branched polypropylene resin has branched chains of 4 to 20/1,000 C in a linear polypropylene.