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 |
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.
|