Construction adhesive composition

Details Construction adhesive composition Construction adhesive composition

C - Chemistry, Metallurgy

09

J

C09J 127/08 (2006.01) C09J 127/04 (2006.01) C09J 131/04 (2006.01)

Patent

CA 2145938

An aqueous construction mastic composition comprising an adhesive polymer component and having a viscosity ranging from 200,000 to 2,000,000 mPa as measured by Brookfield RVT Spindle TD at 2.5 rpm, and 0.1 to 5 wt% thermoplastic hollow microspheres, based on mastic solids. The preferred adhesive component comprises a blend of 25-75 wt% aqueous VAE copolymer emulsion and 75-25 wt% aqueous VAc homopolymer emulsion, based on emulsion solids (polymer binder), preferably a 50/50 wt% blend and a plasticizer at 5 to 15 parts per hundred parts polymer binder.

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