Spinneret for melt spinning filaments

Details Spinneret for melt spinning filaments Spinneret for melt spinning filaments

2007-02-06

2007-02-06

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

C425S382200, C425S464000

Reexamination Certificate

active

10812123

ABSTRACT:
A spinneret assembly for melt spinning a plurality of strand-like filaments, which includes a plurality of internal parts composed of at least one inlet component2and a spinneret plate3which are braced relative each other in a housing1by a supporting means. The inlet component2forms a melt inlet5,and the spinneret plate3forms a melt outlet by means of a plurality of spin holes4.To achieve during operation a self-sealing between the internal parts, the invention provides for arranging an expansion body8between the housing1and one of the internal parts. The expansion body8is formed of a material which has a higher thermal expansion coefficient than the housing material, and it generates, upon being heated, a pressure force inside the housing which provides for a self-sealing bracing of the internal parts.

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patent: 199 35 982 (2001-02-01), None
patent: WO 01/09413 (2001-02-01), None

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