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.)
Glanzstoff AG
Vereinigte Glanzstoff Fabriken AG
Original Assignee
Glanzstoff AG
Vereinigte Glanzstoff Fabriken AG
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 Glanzstoff AG, Vereinigte Glanzstoff Fabriken AGfiledCriticalGlanzstoff AG
Publication of ES229658A1publicationCriticalpatent/ES229658A1/en
Process for the continuous production of polyamides from dicarboxylic acids and diamines, or aminocarboxylic acids, characterized in that, preserving a super-atmospheric pressure, preferably from 15 to 20 atm. And at temperatures above the melting point of the reaction mass, the aqueous solution of the starting materials is first released from the main part of water and, then, the mass that is formed is condensed to the desired degree of polycondensation by applying in the sense opposed an inert gas or vapor stream of approximately the same pressure and temperature. (Machine-translation by Google Translate, not legally binding)
ES0229658A1955-07-231956-07-06Procedure for continuous elaboration of polyamides (Machine-translation by Google Translate, not legally binding)
ExpiredES229658A1
(en)
Continuous procedure for the thermal treatment of textile materials in the form of bands or ramals. (Machine-translation by Google Translate, not legally binding)
Procedure for the use of lost heat in heat generating processes, such as discarding processes (Machine-translation by Google Translate, not legally binding)
A procedure for preparing appropriate polyamides for the support of threads, filaments, pigs and similar (Machine-translation by Google Translate, not legally binding)
A procedure for the continuous manufacture of polyamides from dicarboxylic acids and diamines (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the production methods of a salt from the group of ammonium nitrate and the urea (Machine-translation by Google Translate, not legally binding)