Construction products with an acoustically transparent coating

Patent metadata

Field	Value
Publication number	US-11885129-B2
Application number	US-201615071765-A
Country	US
Kind code	B2
Filing date	Mar 16, 2016
Priority date	Mar 16, 2016
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

Provided is a ceiling tile coated on at least one surface with an acoustically transparent coating which creates pores at the tile surface and comprises a high Tg polymeric binder, titanium dioxide, and particles selected from the group consisting of void latex particles, hollow glass beads, calcium carbonate, calcium magnesium carbonate, calcined clay and any combination thereof. Compositions for acoustically transparent coatings and methods for making a substrate surface acoustically transparent are provided as well.

First claim

What is claimed is:

1. A coated ceiling tile with an estimated noise reduction coefficient (eNRC) of at least 0.85, the coated ceiling tile comprising at least two coats of a coating being coated on at least one surface of the ceiling tile, and wherein the coating has pores and the coating comprises at the time of application to the ceiling tile a high Tg polymeric binder in an amount from 5 wt % to 25 wt % of the solids content in the coating composition, said high Tg polymeric binder having a glass transition temperature (Tg) in the range from 60° C. to 150° C., titanium dioxide, and void latex particles in an amount from 25 wt % to 75 wt % of the solids content in the coating composition, said void latex particles comprising a water-filled or air-filled core surrounded by a shell which comprises a thermoplastic polymer with Tg in the range from 60° C. to 110° C., the void latex particles having a diameter from 100 nm to 500 nm.

2. The coated ceiling tile of claim 1 , wherein the high Tg polymeric binder is selected from the group consisting of acrylate, vinyl acrylate, polyvinyl acetate, styrene acrylate and any mixture thereof.

3. The coated ceiling tile of claim 1 , wherein the coating further comprises at least one filler selected from the group consisting of calcium carbonate, calcium magnesium carbonate, kaolin, synthetic kaolin, silica dioxide and any combination thereof.

4. The coated ceiling tile of claim 1 , wherein the ceiling tile is selected from the group consisting of fiberglass tiles and mineral wool tiles.

Assignees

• Usg Interiors Llc

Inventors

• Li Donghong

Classifications

• E04B9/0464 Primary

  having irregularities on the faces, e.g. holes, grooves · CPC title

• B05D1/02

  performed by spraying · CPC title

• B05D1/18

  performed by dipping · CPC title

• B05D1/28

  performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers · CPC title

• C04B41/009 Primary

  characterised by the material treated · CPC title