SOUND DAMPING WALLBOARD AND METHOD OF FORMING A SOUND DAMPING WALLBOARD

• US 20200131759A1
• Filed: 12/27/2019
• Published: 04/30/2020
• Est. Priority Date: 02/05/2015
• Status: Active Grant

• Current Assignee: Gold Bond Building Products LLC
• Original Assignee: National Gypsum Properties LLC
• Inventors: Blades, Michael N., Watt, John M., Yakowenko, John E., Broud, Todd D., O'Leary, Keith R., Cusa, Stephen A., Quiros, Mauricio, Randall, Brian G., Weir, Richard P.
• Granted Patent: US 11,519,167 B2
• Time in Patent Office: Days
• CPC Class Codes: B32B 2307/102 Insulating
• CPC Class Codes: B32B 2315/18 Plaster
• CPC Class Codes: B32B 2607/00 Walls, panels
• CPC Class Codes: B32B 37/12 characterised by using adhesives
• CPC Class Codes: B32B 37/14 characterised by the properties of the layers
• CPC Class Codes: B32B 38/10 Removing layers, or parts of layers, mechanically or chemically
• CPC Class Codes: B32B 9/06 of paper or cardboard
• CPC Class Codes: E04B 1/8409 sheet-shaped
• CPC Class Codes: E04B 1/86 slab-shaped
• CPC Class Codes: E04B 2001/8461 layered
• CPC Class Codes: F16B 11/006 by gluing gluing of plastics material B29C65/48
• CPC Class Codes: G10K 11/168 Plural layers of different materials, e.g. sandwiches

Abstract

A sound damping wallboard and methods of forming a sound damping wallboard are disclosed. The sound damping wallboard comprises a gypsum layer with a gypsum surface having an encasing layer. The encasing layer is partially removed to expose the gypsum surface and form a gypsum surface portion and a first encasing layer portion on the gypsum layer. A sound damping layer is applied to the gypsum layer to cover at least part of the gypsum surface portion and the encasing layer portion.

Claims

1. A sound damping wallboard, comprising:

a gypsum layer having a first side with a first gypsum surface;

a first encasing layer partially covering the first gypsum surface to form a first encasing layer portion; and

a sound damping layer on the first side covering at least part of the first encasing layer portion.

2-25. -25. (canceled)