Dow Corning Corporation

Andrew Beger

Timothy B Lueder

Randall Gene Schmidt

Loren D Lower

Rochelle Nesbitt

Lawrence Donald Carbary

Nagambai Subramaniam

A pressure sensitive adhesive composition includes (A) a bodied MQ resin containing (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; optionally (D) a crosslinker; optionally (E) a catalyst; and optionally (F) a solvent. A pressure sensitive adhesive product prepared by curing the pressure sensitive adhesive composition is useful in structural attachment applications such as structural glazing applications.

Pressure sensitive adhesives and methods for their preparation

A structural adhesive tape includes a closed cell silicone foam support and a structural adhesive composition on opposing sides of the closed cell silicone foam support. The structural adhesive composition may be a condensation reaction curable pressure sensitive adhesive composition. The structural adhesive tape is useful in structural glazing applications, such as curtain wall applications.

Structural attachment media

A moisture curable composition capable of cure to an elastomeric body, the composition comprising (a) an organopolysiloxane having not less than two silicon-bonded hydroxyl or hydrolyzable groups; (b) a silane of the general formula G-Si&#x2014;R, wherein each group is reactable with the hydroxyl or hydrolyzable groups in (a), and each Rgroup is an alkyl group having from 1 to 10 carbon atoms, an alkenyl group, an alkynyl group an aryl group or a fluorinated alkyl group; (c) one or more fillers and (d) a photocatalyst. Preferably at least one Rgroup is unsaturated, but in the absence of this there is provided an additional component in the form of (e) an unsaturated compound selected from the group of an unsaturated short chain siloxane, an unsaturated cyclic siloxane, an unsaturated fatty acid an unsaturated fatty alcohol or an unsaturated fatty acid ester. The cured product is generally used as a sealant, which avoids dirt pick-up after cure and has a protective layer on the sealant interface with air.

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Elizabethtown, KY, United States of America

Andrew Beger