Two-component adhesive or sealing composition

Details Two-component adhesive or sealing composition Two-component adhesive or sealing composition

1984-12-10

1986-11-18

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525454, 525523, C08L 6302

Patent

active

046237020

ABSTRACT:
A two-component adhesive or sealing system which comprises a mixture of two components, a first component comprising a mixture of a constituent (a) being an amine curable epoxy resin, and a constituent (b) being an isocyanate prepolymer with ether and blocked urethane groups, wherein the amount of constituent (a) comprises from 29 to 52 percent by weight of the total weight of constituents (a) and (b), and the amount of constituent (b) comprises from 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 (c) comprises from 0.3 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.

REFERENCES:
patent: 4388426 (1983-06-01), Schure et al.

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