Photoreactive UV-Crosslinkable Hotmelts Acrylic pressure-sensitive Adhesives coated at Temperatures between 80 and 120 °C

摘要

INTRODUCTION. End users prefer pressure-sensitive adhesives (PSAs) more than traditional adhesives, because of their ease of use, cleanliness and safe manipulation. The market of pressure-sensitive adhesives is dominated by traditional formulations of solvent-borne or water-borne adhesives based on acrylics. Despite the developments of energy-efficient solvent-recovery methods, environmental legislation drives research towards alternative production methods to coating from solution. Water-borne acrylic PSAs wide spread for many different applications, however, the presence of surfactants [1], and the lesser control over the molecular structure did not allow to apply them to the most demanding uses.