the atmosphere enables desired temperature control and enables vacuum degasing of coating material prior to being pressured into a region adjacent to nip this coating apparatus is particularly suitable for applying molten resinous compositions to webs application_number US 55300175 A description fig1 illustrates schematically a general arrangement of web coating apparatus incorporating the invention this apparatus comprises as major items a metering roll 6 a backing roll 7 for forwarding a web through the nip of the rolls 6 and 7 a liquid dispenser 8 a heating and pumping unit 9 for controlling the temperature of a heat exchange liquid circulating through the roll 6 and a jacket chamber of the dispenser 8 a reservoir 10 having an outlet duct 11 terminating in said reservoir and connected with a vacuum source not shown an extruder 12 for supplying a plasticized resinous composition to the reservoir and a pump 14 placed in line 15 for transferring material from the reservoir 10 to the dispenser 8 the backing roll 7 forwards a web 16 through a fountain of liquid coating material supported by the dispenser 8 within a substantially sealed region about areas of both rolls adjacent to the underside of and extending into the nip of the rolls at 17 fig2 illustrates an alternative coating system in which the web 16 need not pass through the nip of the rolls and an upwardly directed.