公开(公告)号：US20250163246A1

公开(公告)日：2025-05-22

申请号：US18817439

申请日：2024-08-28

Applicant: The Swatch Group Research and Development Ltd

Inventor： Nicolas François ,  Marek Dovcik ,  Sophie Napoli ,  Stewes Bourban

IPC: C08K9/02 ,  C08J3/20 ,  C08K3/26

Abstract: An item made of a composite material comprising by weight: one or more thermoplastic resins that are at least partially biobased, the total percentage of the one or more thermoplastic resins being between 20% and 74.9%; a mineral filler with a seashell-based mineral material and a porous silica-based mineral material derived from diatom skeletons, the percentage of the mineral filler being between 25% and 79.9%; a dispersant, the percentage by weight whereof being between 0.1% and 5%, preferably between 0.1% and 1%; optionally a stain system, the percentage whereof being between 0% and 5%; optionally a reinforcement, the percentage whereof being between 0% and 8%; and optionally a coupling agent, the percentage whereof being between 0% and 5%.