Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co IncfiledCriticalWestern Electric Co Inc
Priority to ES0304670ApriorityCriticalpatent/ES304670A1/en
Publication of ES304670A1publicationCriticalpatent/ES304670A1/en
Method of manufacturing cellular articles by extrusion, which comprises the steps of transporting by a screw the material to be extruded and a cuppable by heat, to an extrusion row, and simultaneously treat the material and the hollow by means of the screw , with heat and pressure, so that the material approaches its extrusion temperature, and the hollow reach its decomposition, near the outlet end of the screw; characterized in that a sufficient pressure drop is maintained between the outlet end of the extrusion screw and the inlet to the die, so that the majority of the total expansion of the material occurs before the material enters the wound and reaches its extrusion temperature. (Machine-translation by Google Translate, not legally binding)
ES0304670A1964-09-261964-09-26Method of manufacture of cellular articles. (Machine-translation by Google Translate, not legally binding)
ExpiredES304670A1
(en)
Procedure for the manufacture of expansible particles of an organic thermoplastic polymer. (Machine-translation by Google Translate, not legally binding)
Procedure for the continuous production of hollow bodies of plastic material by molding by aspiration. (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacturing of articles without end of a uniform straight section area (Machine-translation by Google Translate, not legally binding)
Improvements in the manufacture of tubular plastic pieces for its adaptation on bases of lower diameters. (Machine-translation by Google Translate, not legally binding)
Procedure and device for the manufacture of fittings of unión of the elements for heating. (Machine-translation by Google Translate, not legally binding)