• 专利标题:   Composition useful in damping material for ship sonar dome, comprises polyol, isocyanate-based curing agent, reduced graphene oxide and pigment.
  • 专利号:   KR2022071857-A
  • 发明人:   KIM W H, KIM H M, SEOK S M
  • 专利权人:   KOREA SHIPBUILDING OFFSHORE ENG CO LTD, BN STEEL CO LTD
  • 国际专利分类:   C08G018/32, C08G018/73, C08K003/04, C09D175/04, C09D007/40, C09D007/61, G01S007/521
  • 专利详细信息:   KR2022071857-A 31 May 2022 C09D-175/04 202250 Pages: 11
  • 申请详细信息:   KR2022071857-A KR056802 30 Apr 2021
  • 优先权号:   KR159184

▎ 摘  要

NOVELTY - Composition comprises 20-50 wt.% polyol, 10-30 wt.% isocyanate-based curing agent, 1-2.5 wt.% reduced graphene oxide, and 20-50 wt.% pigment. USE - The composition is useful in damping material for ship sonar dome (claimed) for military purpose. ADVANTAGE - The composition has excellent damping performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for damping material comprising 100 pts. wt. rigid polyurethane base material formed by reaction of polyol having a glass transition temperature of -40 degrees C or more and isocyanate-based curing agent; 1-2.5 pts. wt. reduced graphene oxide combined with the rigid polyurethane substrate, and 20-50 pts. wt. pigment.