Filter element and process for producing a filter element

摘要

The invention relates to a hotmelt adhesive including a hotmelt adhesive mixture, the mixture having a 15-85% by weight of a first polyester-based hotmelt adhesive and a 15-85% by weight of a second, polyamide-based hotmelt adhesive.

主权项

1. A hotmelt adhesive system comprising at least one hotmelt adhesive mixture, the hotmelt adhesive mixture comprising
a) 15-85% by weight of a first hotmelt adhesive that is polyester-based; b) 15-85% by weight of a second hotmelt adhesive that is polyamide-based; wherein weight proportions of the first and the second hotmelt adhesives together constitute 100% by weight of the hotmelt adhesive mixture; wherein the hotmelt adhesive mixture constitutes a proportion of more than 75% by weight of the hotmelt adhesive system, wherein the remainder is comprised of fillers including chalk and/or pigments, including titanium dioxide as a white pigment, and/or a tack-providing resin and/or at least one further hotmelt adhesive on polycondensate basis; wherein the polyester-based hotmelt adhesive has a melting point between 150 degrees Celsius and 170 degrees Celsius and the polyamide-based hotmelt adhesive has a melting point between 180 degrees Celsius and 210 degrees Celsius.