ADHESIVE ACRYLATE-OLEFIN COPOLYMERS METHODS FOR PRODUCING SAME AND COMPOSITIONS UTILIZING SAME

• Main Authors: RACKOVAN MITCHELL J, BLACKWELL CHRISTOPHER J, AKELEY JAMES P, WOLFE KENNETH J, POROSKY SARA E, DESAI AJAY S, MCCARTNEY TAMARA L, KARBACKA KAREN L
• Format: Patent
• Language: English; Korean
• Published: 08.08.2022
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; POLISHES; USE OF MATERIALS AS ADHESIVES

본 발명은 임의의 적당한 폴리머 또는 폴리머의 혼합물(예를 들면, 폴리에틸렌 테레프탈레이트(PET), 고밀도 폴리에틸렌(HDPE), 폴리비닐 클로라이드(PVC), 저밀도 폴리에틸렌(LDPE), 폴리프로필렌(PP), 폴리스티렌(PS), 또는 기타 모든 플라스틱 타입)로 이루어진 플라스틱 물품의 재활용 또는 유리병의 재활용도 가능하게 하도록 설계된 접착제 조성물, 이것을 포함하는 페이스스톡 및/또는 포장 라벨에 관한 것이다. 또 다른 실시형태에 있어서, 본 발명은 접착제 조성물, 이것을 포함하는 페이스스톡 및/또는 포장 라벨을 재활용할 플라스틱 물품으로부터 제거하는 방법에 관한 것이다. 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.