COATED PAPER ARTICLE

• Main Authors: EINSLA, Brian, HEJL, Andrew, CARTER, Matthew, ROPER III, John A, ZHANG, Xiangyi
• Format: Patent
• Language: English; French
• Published: 02.02.2023
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; IMPREGNATING OR COATING OF PAPER; PACKAGES; PACKAGING ELEMENTS; PACKING; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; STORING; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

The present invention relates to an article comprising a paper or paperboard substrate superposed with a film having a dry coat weight in the range of from 1 g/m2 to 20 g/m2; wherein the film comprising a copolymer which comprises structural units of a vinyl ester, vinyl alcohol, and an acrylate monomer. The coating provides oil and grease resistance, mineral oil barrier performance, and heat sealability. La présente invention concerne un article comprenant un substrat de papier ou de carton superposé à un film ayant un poids de revêtement sec dans la plage de 1 g/m2 à 20 g/m2 ; le film comprenant un copolymère qui comprend des unités structurales d'ester vinylique, d'alcool vinylique et de monomère acrylate. Le revêtement fournit une résistance à l'huile et à la graisse, une performance de barrière à l'huile minérale et une capacité d'adhérence à la chaleur.