Colour-changeable adhesive

Details Colour-changeable adhesive Colour-changeable adhesive

C - Chemistry, Metallurgy

09

J

154/107, 400/491

C09J 9/00 (2006.01) B29C 65/00 (2006.01) B32B 7/12 (2006.01) C08G 59/18 (2006.01) C08J 3/24 (2006.01) C09J 5/06 (2006.01) B29C 65/14 (2006.01)

Patent

CA 1340560

An adhesive composition comprises a mixture of a one-part heat-curable adhesive and a substantially water-insoluble indicator material which is substantially unreactive with the components of the one-part heat-curable adhesive (i.e. curable resin, heat-activatable curing agent for the resin and accelerator) but which has the ability to produce a colour change in the composition on curing of the adhesive. Preferably, the adhesive is a one-part heat-curable epoxy adhesive system. The use of the adhesive composition enables a visible determination of the point of cure of the adhesive.

599840

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