Title:
ACOUSTIC PANELS AND METHODS FOR PREPARING THEM
Document Type and Number:
WIPO Patent Application WO/2020/040908
Kind Code:
A8
Abstract:
The disclosure relates to acoustic panels and methods for preparing them. The disclosure relates more particularly to panels having a porous facing and to methods for making such panels. One aspect of the disclosure is an acoustic panel comprising a base structure. The base structure has one or more edges, an outward major surface having a total area, and an inward major surface opposing the outward major surface. The base structure has a noise reduction coefficient (NRC) of at least about 0.3. The panel includes a coating layer directly disposed on the outward major surface of the base structure, the coating layer being formed of an open-cell foam. The coating layer has an exterior major surface opposing the outward major surface of the base structure. The coating layer is substantially scattering for light in the wavelength range of 380 nm to 780 nm, and has an absorption coefficient of less than 0.5 for acoustic frequencies in the range of 100 Hz to 10,000 Hz.
Inventors:
SHACKLEFORD DAVID (US)
YOU SIZHU (US)
JACEK STEVEN (US)
EVANS PHILLIP (US)
RILE ALEXIS (US)
LEMBO MICHAEL (US)
YOU SIZHU (US)
JACEK STEVEN (US)
EVANS PHILLIP (US)
RILE ALEXIS (US)
LEMBO MICHAEL (US)
Application Number:
PCT/US2019/042264
Publication Date:
February 11, 2021
Filing Date:
July 17, 2019
Export Citation:
Assignee:
CERTAINTEED CEILINGS CORP (US)
International Classes:
E04B1/86; E04B1/84; E04B9/04
Attorney, Agent or Firm:
SUGGS, James, V. (US)
Download PDF:
Previous Patent: WAVEFORM MULTIPLEXING IN MILLIMETER WAVE BAND
Next Patent: POWER MANAGEMENT COMPONENT FOR MEMORY SUB-SYSTEM POWER CYCLING
Next Patent: POWER MANAGEMENT COMPONENT FOR MEMORY SUB-SYSTEM POWER CYCLING