Water-based construction adhesive mastic
AssigneeAir Products and Chemicals, Inc.
InventorWayne R. Furlan
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Abstract
A water-based construction adhesive composition containing an aqueous emulsion polymer binder which comprises a blend, based on 100 weight parts of polymer solids, of 25 to 75 parts aqueous emulsion vinyl acetate/-ethylene copolymer and 75 to 25 parts aqueous emulsion vinyl acetate homopolymer.
Claims19
In a water based construction adhesive mastic composition comprising polymer binder, plasticizer, filler and thixotrope in an aqueous medium, the improvement which comprises as the polymer binder 25 to 75 wt % (polymer solids) of an aqueous vinyl acetate/ethylene copolymer emulsion and 75 to 25 wt % (polymer solids) of an aqueous vinyl acetate homopolymer emulsion, based on 100 parts by weight polymer binder.
An aqueous adhesive composition comprising a blend of 25-75 wt % aqueous vinyl acetate/ethylene copolymer emulsion and 75-25 wt % vinyl acetate homopolymer emulsion, wt % based on polymer solids, and a plasticizer at 5-15 parts per 100 parts polymer solids.
Dependencies are inferred from the claim text.