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  • 专利标题:   Surface-treatment composition used for vibration damping steel sheet, comprises polymer resin and inorganic nanoparticles having preset average aspect ratio.
  • 专利号:   WO2021118036-A1, KR2021073985-A, KR2329505-B1, CN114787303-A, EP4074791-A1, US2023023200-A1, JP2023506738-W, EP4074791-A4
  • 发明人:   KIM J, LEE J, KIM Y, CHOI H, CHOI Y, KIM J T, KIM Y S, CHOI Y H, CUI H, JIN Y, LI Z
  • 专利权人:   POSCO, POSCO, POSCO
  • 国际专利分类:   C08K003/04, C08K009/04, C09D167/00, C09D201/00, C09D007/61, C09D007/62, B32B015/08, B32B015/18, C08K003/34, C08K007/06, C08L101/00, F16F015/02
  • 专利详细信息:   WO2021118036-A1 17 Jun 2021 202158 Pages: 14
  • 申请详细信息:   WO2021118036-A1 WOKR014103 15 Oct 2020
  • 优先权号:   KR164858, WOKR014103, CN80086168

▎ 摘　　要

NOVELTY - A surface-treatment composition comprises a polymer resin and inorganic nanoparticles having an average aspect ratio (L/D) of 100 or more. USE - Surface-treatment composition is used for vibration damping steel sheet (claimed). Uses include but are not limited to exterior plate of refrigerator, washing machine and air purifier, engine oil pan, dash panel, and building material. ADVANTAGE - The surface-treatment composition produces vibration damping steel sheet having improved vibration damping performance and which does not easily generate cracks even when an external force is applied. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for vibration damping steel sheet, which comprises a steel sheet and a vibration damping layer containing the surface-treatment composition, provided on at least one surface of the steel sheet.