Apparatus and method for applying a hot melt adhesive to a web of heat sensitive material in which the adhesive is heated and extruded in a continuous flat bead having a substantially rectangular cross-section onto a rotating chill roll, cooled, contacted by a web of heat sensitive material and thereafter...http://www.google.com/patents/US4610745?utm_source=gb-gplus-sharePatent US4610745 - Method and apparatus for applying hot melt pressure sensitive adhesive to a heat sensitive web
