| abstract |
The invention relates firstly to a hot melt adhesive additive, particularly comprising a low molecular weight styrene-maleic anhydride (SMA) and a low molecular weight maleated polybutadiene imparting caustic removability to a conventional hot melt adhesive composition comprising the said additive. It relates also to a caustic removable hot melt adhesive composition comprising said adhesive additive and further comprising an adhesive resin of the group consisting of styrene-isoprene-styrene block copolymers, tackifying resins, polyacrylate resins, poly ethylene vinyl acetate resins, polystyrene butadiene resins, styrene-butadiene-styrene block copolymers, and process oil, or mixtures thereof. It covers also a caustic removable hot melt adhesive label which comprises said caustic removable hot melt adhesive composition. |