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.)
La Seda de Barcelona SA
Original Assignee
La Seda de Barcelona SA
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Filing date
Publication date
Application filed by La Seda de Barcelona SAfiledCriticalLa Seda de Barcelona SA
Priority to ES409819ApriorityCriticalpatent/ES409819A3/en
Publication of ES409819A3publicationCriticalpatent/ES409819A3/en
Stretching procedure of substantially linear polyurethane filament to reduce its titer without affecting its other physical characteristics, characterized by the drawing of a filament a number of times its primitive length and by its heating at a temperature above its "sticking temperature" for a sufficient time so that the filament retains this elongation in a permanent manner without recovering a substantial part of the length to which it has elongated. (Machine-translation by Google Translate, not legally binding)
ES409819A1972-12-131972-12-13Polyurethane filament stretching procedure. (Machine-translation by Google Translate, not legally binding)
ExpiredES409819A3
(en)
Procedure for the manufacture of large-part materials free of tensions, mainly tubes, based on polycarbonates thermoplastics of high molecular weight (Machine-translation by Google Translate, not legally binding)