US 11,655,635 B2
Plaster boards having internal layers and methods for making them
James Dimitrakopoulos, Conshohocken, PA (US); Vincent Infante, Malvern, PA (US); John Bridenstine, Dade City, FL (US); David William Pugh, Berwyn, PA (US); David Hagelgans, Lancaster, PA (US); Ying Wang, Westborough, MA (US); and Xuejuan Xu, Northborough, MA (US)
Assigned to CertainTeed Gypsum, Inc., Malvern, PA (US)
Filed by CertainTeed Gypsum, Inc., Malvern, PA (US)
Filed on May 4, 2021, as Appl. No. 17/308,028.
Application 17/308,028 is a continuation of application No. 16/143,084, filed on Sep. 26, 2018, granted, now 11,124,965.
Claims priority of provisional application 62/563,118, filed on Sep. 26, 2017.
Prior Publication US 2021/0324628 A1, Oct. 21, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. E04C 2/04 (2006.01); B32B 3/10 (2006.01); B32B 3/24 (2006.01); B32B 3/26 (2006.01); B32B 7/12 (2006.01); B32B 13/04 (2006.01); E04B 1/84 (2006.01); E04B 1/86 (2006.01); B26F 3/00 (2006.01); B32B 37/12 (2006.01); B32B 38/04 (2006.01); B32B 13/08 (2006.01); B32B 13/12 (2006.01); B32B 13/14 (2006.01); E04C 2/288 (2006.01); E04B 2/74 (2006.01); B26D 3/08 (2006.01); B28B 11/14 (2006.01)
CPC E04C 2/043 (2013.01) [B26F 3/002 (2013.01); B32B 3/26 (2013.01); B32B 3/263 (2013.01); B32B 3/266 (2013.01); B32B 7/12 (2013.01); B32B 13/04 (2013.01); B32B 37/12 (2013.01); B32B 38/04 (2013.01); E04B 1/84 (2013.01); E04B 1/86 (2013.01); B26D 3/085 (2013.01); B28B 11/14 (2013.01); B32B 13/045 (2013.01); B32B 13/12 (2013.01); B32B 13/14 (2013.01); B32B 2038/042 (2013.01); B32B 2038/045 (2013.01); B32B 2038/047 (2013.01); B32B 2250/40 (2013.01); B32B 2307/102 (2013.01); B32B 2307/51 (2013.01); B32B 2307/56 (2013.01); B32B 2307/58 (2013.01); B32B 2307/582 (2013.01); B32B 2607/00 (2013.01); E04B 1/8409 (2013.01); E04B 2/7409 (2013.01); E04B 2001/8461 (2013.01); E04C 2/2885 (2013.01); Y10T 156/1051 (2015.01); Y10T 156/1062 (2015.01); Y10T 156/1064 (2015.01); Y10T 428/15 (2015.01); Y10T 428/24322 (2015.01); Y10T 428/24331 (2015.01); Y10T 428/24339 (2015.01); Y10T 428/24612 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A plaster board having a first edge and a second opposing edge, the plaster board comprising:
a first layer of hardened plaster material comprising a first surface and an opposed second surface,
a first liner that is attached to the first surface of the first layer of hardened plaster material, wherein the first liner comprises a plurality of structurally weakened regions, each of the structurally weakened regions extending substantially from the first edge to the second edge of the plaster board, the first liner having a thickness, each of the structurally weakened regions not extending through the thickness of the liner,
a second layer of hardened plaster material comprising a first surface and an opposed second surface, and
a first viscoelastic polymer material adhered between the first liner and the first surface of the second layer of hardened plaster material.