Patent ID: 7311941

Claim:
Method of applying a molten hot-melt adhesive to a substrate, wherein said hot-melt adhesive comprises at least one volatile material having a boiling point at atmospheric pressure below the application temperature of said hot-melt adhesive, said method comprises the following steps: (i) heating said hot-melt adhesive to its application temperature in an adhesive tank; (ii) delivering said hot-melt adhesive from said adhesive tank at an adhesive mass flow rate, by using a delivering means; wherein in that said steps (i) and (ii) are being carried out at a pressure of from about 0.05 to about 100 bar above atmospheric pressure for inhibiting the formation of gas bubbles originating from said volatile material, whereby said adhesive mass flow rate has a maximum variation of about ±10% in a temperature interval of about ±10° C. of said application temperature of 145° C. of said hot-melt adhesive.