Patent ID: 9390700
Filing Date: 2016-07-12
CPC Classification: B32B,E04B,G10K

Claim Text:
1. An acoustic ceiling panel comprising: a first layer comprising a first major surface and a second major surface, the second major surface of the first layer defined by a perimeter, the second major surface of the first layer comprising a perimeter region adjacent the perimeter of the second major surface of the first layer and a central region circumscribed by the perimeter region of the second major surface of the first layer; a second layer comprising a first major surface and a second major surface, the first major surface of the second layer defined by a perimeter, the first major surface of the second layer comprising a perimeter region adjacent the perimeter of the first major surface of the second layer and a central region circumscribed by the perimeter region of the first major surface of the second layer; and the perimeter region of the second major surface of the first layer coupled to the perimeter region of the first major surface by an adhesive, each of the central region of the second major surface of the first layer and the central region of the first major surface of the second layer being free of adhesive and the central region of the second major surface of the first layer is in contact with the central region of the first major surface of the second layer, to form a cohesive multilayer panel.