Disclosed is a polyolefin-based resin composition for a vehicle interior material including heat-treated waste coffee grounds. The resin composition includes a polyolefin-based resin, waste coffee grounds including a volatile matter (VM) in an amount less than about 20 wt percent of the waste coffee grounds, a modified polypropylene, an inorganic filler, and a thermoplastic elastomer.

You do not currently have access to this content.