| 摘要 |
Hot melt adhesive consisting of a pressure sensitive adhesive comprising at least one polymer selected from polyester, polyacrylate, polyolefin, polyurethane, ethylene vinyl acetate polymers, styrene blockcopolymers or mixtures, at least one tackifier and additives the adhesives having the form of pellets, each pellet of adhesive has an outer shell of a film forming material, whereby i)the adhesive has a softening point of 80 to 150 °C and has at 25°C a tacky surface, ii) the film forming material is a thermoplastic polymer with a melting point of less than 120 °C, iii) each pellet being completely surrounded by the film material, so that the pellets have a non-blocking surface and are free flowing at a temperature of less then 45°C. Such pellets can be used as feed for automated feeder devices for the supply hot melt application systems. |
