Patent ID: 8303877
Filing Date: 2012-11-06
Classification: B29C,B29K,B29L,B60K,F16L

Abstract:
1. A method for manufacturing a socket for connecting a fluid conduit to a container made from thermoplastic synthetic material, wherein the socket has a first socket-shaped material arrangement comprising at least two layers and a second socket-shaped material arrangement comprising at least two layers, wherein the first material arrangement is thinner than the second material arrangement and the first and second material arrangements both comprise a thermoplastic material at least as a predominant component and fuse with one another to form a fused joint; the method comprising the steps of: 1) molding the first material arrangement by extrusion or injection molding to a plane film or plate or to a hose; 2) deepdrawing the film or the plate or blowmolding the hose to a first preform with a socket contour; 3) applying the second material arrangement onto one side of the first preform in a socket contour by injection molding, coinjection or a monosandwich process, wherein the first material arrangement comprises a first layer and a second layer, wherein the first and second layers are prepared according to the steps 1) and 2) to form the first perform and a second preform, respectively, wherein in the step 3) a first layer of the second material arrangement is injected by injection molding, coinjection or a monosandwich process between the first and second preforms, and wherein in an additional step 4) into a still plastic core of the first layer of the second material arrangement a third layer is injected so that the first layer of the second material arrangement forms a skin layer and the third layer forms a core layer.