MÉTODO DE FABRICAÇÃO DE TERMOSSELAGEM HERMÉTICA RESISTENTE E EMBALAGEM

• Main Authors: STEPHEN R. TANNY, TERRANCE D. KENDIG
• Format: Patent
• Language: Portuguese
• Published: 19.07.2022
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; 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; DYES; HANDLING THIN OR FILAMENTARY MATERIAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PACKAGES; PACKAGING ELEMENTS; PACKING; PAINTS; PERFORMING OPERATIONS; POLISHES; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

MÉTODO DE FABRICAÇÃO DE TERMOSSELAGEM HERMÉTICA FIRME, MÉTODO DE FABRICAÇÃO DE ESTRUTURA DE MÚLTIPLAS CAMADAS E EMBALAGEM São descritas composições que compreendem copolímeros de etileno/vinil acetato, resinas aglutinantes e opcionalmente poliolefinas (tais como polietileno e polipropileno) que fornecem vedações a quente herméticas firmes e fortes com característica de abertura facilmente descolável para fluoropolímeros tais como policlorotrifluoroetileno. Também são descritas estruturas de múltiplas camadas e embalagens que compreendem essas composições. Disclosed are compositions comprising ethylene/vinyl acetate copolymers, tackifying resins and optionally polyolefins (for example, polyethylene and polypropylene) that provide strong, tight hermetic heat seals with an easily peelable opening feature to fluoropolymers such as polychlorotrifluoroethylene. Also disclosed are multilayer structures and packages comprising these compositions.