B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/753
B29C 47/02 (2006.01) B29C 47/20 (2006.01)
Patent
CA 2002376
This invention relates to a process and a device for producing a rubber tube. It is the subject of this invention to provide a process and a device for efficiently producing a rubber tube having a smooth outside surface, and this subject is achieved by a process and a device characterized in that a molten synthetic resin is heated from the inner circumferential side immediately before it flows from a die along the periphery of a rubber material layer. This invention can be used for the efficient production of a rubber tube having a smooth outside surface.
La présente invention a pour objet un procédé ainsi qu'une machine pour la production d'un tube en caoutchouc. La présente vise un procédé ainsi qu'une machine permettant de produire efficacement un tube de caoutchouc possédant une surface externe lisse obtenue par utilisation d'un procédé et d'une machine caractérisés par l'utilisation d'une résine synthétique qui est chauffée de l'intérieur de la circonférence du tube en question immédiatement avant de sortir d'une matrice supportant une couche d'un matériau à base de caoutchouc. Cette invention peut être utilisée pour produire un tube de caoutchouc à surface externe lisse.
Shigemoto Hiromi
Yamamoto Akio
Mitsui Chemicals Inc.
Smart & Biggar
LandOfFree
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