Patent ID: 7150616
Filing Date: 2006-12-19
Classification: D01D

Abstract:
1. A die adapted for extruding a plurality of meltblown multicomponent filaments, the meltblown multicomponent filaments comprising at least two different thermoplastic resins arranged in a multicomponent structure, wherein the die comprises: a first surface that comprises a first plurality of orifices of a first diameter wherein each of the first plurality of orifices extend from the first surface to a first conduit that extends in the interior of the die to a capillary having a diameter smaller than the first diameter and then to a die opening wherein the first plurality of conduits define a first plane; the first surface further comprises a second plurality of orifices of the first diameter wherein each of the second plurality of orifices extend from the first surface to a second conduit that extends in the interior of the die to a capillary having a diameter smaller than the first diameter and then to a die opening wherein the second plurality of conduits define a second plane, wherein the first plurality of orifices and first conduits alternate with the second plurality of orifices and second conduits; wherein the first plane and the second plane are not coplanar and intersect at an angle α.