Soft textured reveal edge ceiling board and process for its manufacture
AssigneeUSG Acoustical Products Company
InventorTheodore E. Hillman
Life of this patent
Estimating the term…
Abstract
A fabric-surfaced fiber board having pressed and non-pressed portions. The board includes a low density fiber board composition having a re-activatable binder therein and having a fabric bonded thereto to form a laminate therewith. The laminate has peripheral portions wherein said fiber board composition has been compressed and reformed to have a reduced height, a higher density and a greater strength as compared to the non-pressed portion of the board.
Claims14
A process for manufacturing a reveal edge fabric surfaced ceiling board having pressed and non-pressed portions comprising the steps of:
- (a) bonding a fabric to one face of a preformed ceiling board, said ceiling board comprising wood fibers or mineral fibers and a re-activatable binder to form a laminate of said fabric and said preformed ceiling board;
- and
- (b) simultaneously heating and pressing the periphery portion of the ceiling board while said reactivatable binder in said periphery portion is in a reactivatable condition to form a reveal edge ceiling board, said reveal edge being a portion of reduced height, higher density and greater strength as compared to a non-pressed portion of the ceiling board.
A process for manufacturing a fabric surfaced mineral fiber board comprising the steps of bonding a fabric to a preformed low density mineral fiber board having a re-activatable binder to form a laminate of said fabric and said preformed low density mineral fiber board;
- placing the re-activatable binder in the periphery portion of the laminate into a reactivatable condition;
- simultaneously heating and pressing said periphery portion for compressing and reforming said periphery portion to have reduced height and higher density as compared to the non-peripheral portion of the ceiling board.
A fabric surface fiber board laminate having pressed and non-pressed portions manufactured in accordance with the following process:
- (a) bonding a fabric to one face of a preformed ceiling board, said ceiling board comprising wood fibers or mineral fibers and a re-activatable binder to form a laminate of said fabric and said preformed ceiling board;
- and
- (b) simultaneously heating and pressing the periphery portion of the ceiling board while said reactivatable binder in said periphery portion is in a reactivatable condition to form a reveal edge ceiling board, said reveal edge being a portion of reduced height, higher density and greater strength as compared to the non-pressed portion of the ceiling board.
A fabric-surfaced fiber board having pressed and non-pressed portions comprising a low density fiber board composition with a density of from about 10 to about 30 pounds per cubic foot including a re-activatable binder therein and having a fabric bonded thereto to form a laminate therewith, said laminate having peripheral portions wherein said fiber board composition has been compressed and reformed to have reduced height, a higher density and greater strength as compared to the non-pressed portion of the ceiling board.
Dependencies are inferred from the claim text.