copolímeros de olefina-acrilato adesivos, métodos para produzir os mesmos e composições utilizando os mesmos

abstract “copolímeros de olefina-acrilato adesivos, métodos para produzir os mesmos e composições utilizando os mesmos” the present invention relates to an adhesive compositions, facestocks and/or packaging labels containing 5 same, where such compositions, facestocks and/or labels are designed to facilitate the recyclability of a plastic article formed from any suitable polymer or mixture of polymers (e.g., a polyethylene terephthalate (pet), high density polyethylene (hdpe), polyvinyl chloride (pvc), low 10 density polyethylene (ldpe), polypropylene (pp), polystyrene (ps), or others of all plastic types), or even glass bottles. in another embodiment, the present invention relates to a method for removing an adhesive composition, facestock and/or packaging label containing same, from a 15 plastic article that is to be recycled. The present invention relates to a plastic article formed from polyethylene terephthalate and having attached thereto a facestock/adhesive construction, the facestock/adhesive construction comprising: a face layer, wherein the face layer is formed from a facestock material that is an olefin polymer facestock selected from polyethylene facestocks or polypropylene facestocks; andan adhesive layer adhered to the article;wherein the adhesive is a polymer produced by copolymerizing a mixture of monomers comprising at least one monomer selected from the group of alkyl acrylate esters containing from about 4 to about 12 carbon atoms in the alkyl group where such one or more alkyl acrylate esters are present in a total amount from about 65 weight percent to about 80 weight percent with at least one vinyl ester containing from 2 to about 16 carbon atoms in the alkyl chain of the acid, with such said vinyl acetate present in a total amount of from about 15 to about 35 percent by weight, and up to about 5 weight percent of an unsaturated carboxylic acid contains from 3 to 5 carbon atoms.