초록 ▼

Process for the production of alveolar modules comprising rows of parallel channels, certain of which issue onto the sidewalls of the module, the process consisting of producing the module by extrusion using at least two independent systems each producing rows of identical channels, whereby the form

Process for the production of alveolar modules comprising rows of parallel channels, certain of which issue onto the sidewalls of the module, the process consisting of producing the module by extrusion using at least two independent systems each producing rows of identical channels, whereby the formation of one of the systems is interrupted when the row of channels being produced is to issue onto the sidewalls of the module. The apparatus for performing this process comprises a first extrusion system incorporating first extrusion material supply means and a first spinneret complementary to the cross-section of the rows of channels issuing onto the sidewalls of the module and a second extrusion system incorporating second extrusion material supply means and a second spinneret complementary to the cross-section of the other rows of channels, the first and second supply means being controlled independently of one another.

대표청구항 ▼

A process for the production of alveolar modules comprising rows of parallel channels, certain of which issue onto the sidewalls of the module, wherein it consists of producing the module by extrusion using at least two independent systems, each producing rows of identical channels, whereby the form

A process for the production of alveolar modules comprising rows of parallel channels, certain of which issue onto the sidewalls of the module, wherein it consists of producing the module by extrusion using at least two independent systems, each producing rows of identical channels, whereby the formation of one of the systems is interrupted when the rows of channels being produced is to issue onto the sidewalls of the module. An apparatus for producing alveolar modules having rows of parallel channels, certain of which issue onto the sidewalls of the module, comprising a first extrusion system incorporating first extrusion material supply means and a first spinneret complementary of the cross-section of the rows of channels issuing onto the sidewalls of the module, a second extrusion system complementary of the cross-section of the other rows of channels, the first and second supply means being controlled independently of one another, and means for interrupting extrusion by one of said extrusion systems when the rows of channels being produced by said one extrusion system are to issue onto the sidewalls of the module.