COEXTRUSION HEAD Russian patent published in 2021 - IPC B29C48/25 

FIELD: chemical industry.

SUBSTANCE: invention relates to devices for the production of multilayer products of flat and other shapes by co-extrusion. It is used in chemical and other industries. The design features of the proposed coextrusion head are that in the central part of the divider, between the recesses for liquid circulation, through holes of circular cross-section are made, the axes of which are perpendicular to the plane of the output window. The holes are connected to a reinforced material supply device located in the area between the supply channels.

EFFECT: proposed coextrusion head makes it possible to obtain durable products by co-extrusion with reinforced material between the layers.

1 cl, 2 dwg