Adhesive for digital ink printed laminates

• Main Authors: GUO, YINZHONG, JYAWOOK, AMIRA A, BROWN, KRISTY
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2023
• 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 laminating adhesive with improved digital ink lamination properties comprising an isocyanate component and a polyol component. The isocyanate component comprises an isocyanate prepolymer and an aliphatic polyisocyanate. The polyol component comprises a transesterified polyester polyol made from an aromatic polyester polyol and a natural oil, polypropylene glycols, and a phosphate adhesion promotor. The isocyanate prepolymer within the isocyanate component comprises the reacted product of an isocyanate with a polyalkylene glycol polymer. Laminating structures can be made by coating at least part of a substrate with the adhesive and contacting the first substrate with a second.