Patent ID: 8141324

Claim:
A curtain wall unit comprising: (a) a frame member, (b) a curtain wall panel, and (c) a structural adhesive tape comprising (i) a silicone foam support, (ii) a structural adhesive composition applied on opposing sides of the silicone foam support, where the structural adhesive tape is interposed between the frame member and the curtain wall panel and structurally attaches the curtain wall panel to the frame member; and where the structural adhesive composition is a condensation reaction curable pressure sensitive adhesive composition comprising: (A) a bodied MQ resin comprising (i) a resinous core and (ii) a nonresinous polyorganosiloxane group, where the nonresinous polyorganosiloxane group is terminated with a silicon-bonded hydroxyl group; (B) a treated MQ resin, where (B)/(A) ratio has a value of 0.3 to 5.0, and (C) a polydiorganosiloxane terminated with a condensation reactable group; where resin/polymer ratio has a value of 2.0 to 3.0; (D) a crosslinker; and (E) a catalyst.