sistema ligante baseado em poliuretano

• Main Authors: ANDRE TE POEL, CLAUDIA MECKEL-JONAS, MARCEL BLODAU
• Format: Patent
• Language: Portuguese
• Published: 10.07.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

a presente invenção refere-se a um sistema ligante que contém um prepolímero poliuretano terminado com isocianato como o componente resina e uma mistura de polióis como o agente de cura, a dita mistura de polióis contendo pelo menos uma diamina alcoxilada. a invenção também refere-se ao uso do sistema ligante como um material adesivo/selante, em particular como um adesivo de laminação para embalagem de alimento. The present invention relates to a binder system which contains an isocyanate-terminated polyurethane prepolymer as the resin component and a polyol mixture as the curing agent, said polyol mixture containing at least one alkoxylated diamine. The invention also relates to the use of the binder system as an adhesive/sealing material, in particular as a laminating adhesive for food packaging.