PRESSURE-SENSITIVE ADHESIVE COMPOSITION COMPRISING A DISPERSED PRESSURE-SENSITIVE ADHESIVE POLYMER FORMED BY EMULSION POLYMERIZATION OF 2-OCTYL ACRYLATE, STYRENE, HYDROXYALKYL ACRYLATE, MONOMERS HAVING AT LEAST ONE ACID GROUP IN SPECIFIC AMOUNTS AND OPTIONALLY FURTHER MONOMERS

• Main Authors: SCHUMACHER, Karl-Heinz, GROEER, Saskia
• Format: Patent
• Language: English; French
• Published: 21.03.2024
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

Described is a pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising a dispersed pressure-sensitive adhesive polymer formed by emulsion polymerization of 2-octyl acrylate, styrene, hydroxyalkyl acrylate, monomers having at least one acid group in specific amounts and optionally further monomers. The pressure-sensitive adhesive composition may be used to produce self-adhesive articles such as self-adhesive labels, self-adhesive tapes or self-adhesive films. La présente invention concerne une composition adhésive sensible à la pression sous la forme d'une dispersion aqueuse de polymères comprenant un polymère adhésif sensible à la pression dispersé, constitué par polymérisation en émulsion d'acrylate de 2-octyle, de styrène, d'acrylate d'hydroxyalkyle, de monomères présentant au moins un groupe acide dans des quantités spécifiques et, éventuellement, d'autres monomères. La composition adhésive sensible à la pression peut être utilisée pour produire des articles auto-adhésifs tels que des étiquettes autocollantes, des rubans auto-adhésifs ou des films auto-adhésifs.