Multilayer damping material

US11199235B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Jonathan H. Alexander · Roseville, US
• Georg Eichhorn · Herford, DE
• Ronald W. Gerdes · Okabena, US
• Thomas P. Hanschen · Windom, US
• Thomas Herdtie · Inver Grove Heights, US
• Taewook Yoo · Woodbury, US

Key dates

• Filing date: Jun 15, 2016
• Grant date: Dec 14, 2021
• Expiry date: Aug 28, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2234/06
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A multilayer damping material for damping a vibrating surface comprising: at least one constraining layer; at least one dissipating layer; and at least one kinetic spacer layer comprising multiple spacer elements. The kinetic spacer layer is arranged between the constraining layer and the vibrating surface, when used for damping the vibrating surface. Each spacer element has opposite ends. At least one end of each of the multiple spacer elements is embedded in, bonded to, in contact with, or in close proximity to the dissipating layer, such that energy is dissipated within the multilayer damping material, through movement of the at least one end of each of the multiple spacer elements.