Adhesive or sealing composition

Details Adhesive or sealing composition Adhesive or sealing composition

C - Chemistry, Metallurgy

08

L

400/4303, 400/50

C08L 75/08 (2006.01) C08G 18/10 (2006.01) C08L 63/00 (2006.01) C09J 175/08 (2006.01) C09K 3/10 (2006.01)

Patent

CA 1261506

A B S T R A C T A two-component adhesive or sealing system comprises: a first component comprising a mixture of a constituent (a) being an amine curable epoxy resin, and a constituent (b) being an isocyanate pre- polymer with ether and blocked urethane groups, wherein the amount of constituent (a) comprises 29 to 52 percent by weight of the total weight of constituents (a) and (b), and the amount of constituent (b) comprises 48 to 71 percent by weight of the total weight of constituents (a) and (b), and a second component comprising a mixture of constituent (c) being a suitable amine hardener, constituent (d) being a tertiary amine as a primary accelerator, and constituent (e) being a mercaptan terminated polymer such as Capcure 3-800*as secondary accelerator, wherein the amount of constituent (d) comprises optionally an effective amount up to 47 percent by weight of the total weight of constituent (a) and (b), the amount of constituent (d) comprises 1 to 27 percent by weight of the total weight of the constituents (a) and (b), and the amount of constituent (e) comprises 21 to 328 percent by weight of the total weight of constituents (c) and (d). The first component and the second component are blended together in a ratio of approximately 2 to 1 to form the adhesive or sealing composition.

469688

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