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US 12,753,307 B2Granted
Polyamide composite resin composition having high rigidity and low water absorption and molded article comprising the same
AssigneesHyundai Motor Company, Kia Corporation, Hdc Hyundai Engineering Plastics Co., Ltd.
InventorsKyeong Hoon Jang, Seul Yi, Eun Seob Shin, Kang Il Jeon
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Abstract
A polyamide composite resin composition has high rigidity and low water absorption by mixing polyamide, a modified aliphatic amine, an inorganic filler, high-density polyethylene and a polyalcohol-based flow improver in appropriate amounts.
Claims10
A polyamide composite resin composition comprising:
- 10% by weight to 20% by weight of polyamide;
- 10% by weight to 20% by weight of a modified aliphatic amine;
- 50% by weight to 70% by weight of an inorganic filler;
- 4% by weight to 8% by weight of high-density polyethylene;
- and
- 1% by weight to 3% by weight of a polyalcohol-based flow improver,
- wherein the high-density polyethylene has a weight average molecular weight of 300,000 g/mol to 700,000 g/mol, density of 0.930 g/cm3 to 0.980 g/cm3, and a melt index (230° C., 2.16 kg load) of 20 g/10 min to 40 g/10 min.
4 more elements
Dependencies are inferred from the claim text.