Polyamide and its use in a release lacquer

• Main Authors: TONNOIR, OLIVIER, BOCCON, NADÈGE, BRETTAR, JULIE
• Format: Patent
• Language: English; French; German
• Published: 24.06.2015
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; 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; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention is related to a polyamide resin, comprising a main structural unit derived from at least one dimeric C10-30 carboxylic acid and at least one polyamine, preferably selected from the group consisting of diamines and triamines, and at least one polyorganosiloxane moiety covalently linked to said at least one main structural unit. The present invention is furthermore related to a process for preparing said polyamide resin, to a release lacquer comprising said polyamide resin, and to a film, comprising said release lacquer on its one surface and a layer of a pressure-sensitive adhesive on its other surface.