ES320837A1 - A procedure for the further processing of fiber and film-forming polyesters. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the further processing of fiber and film-forming polyesters. (Machine-translation by Google Translate, not legally binding)
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.)
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GEA Group AG
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Metallgesellschaft AG
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Publication date
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Publication of ES320837A1publicationCriticalpatent/ES320837A1/en
A process for the subsequent treatment of polyesters for forming fibers and films based on polycarboxylic acids and polyols, preferably polyesters based on aromatic dicarboxylic acids or their anhydrides and diols, for molecular weight increase, characterized in that the polyester is reacted first with reactable compounds of the type (see formula) and/or its derivatives, where n = 2 to 5 and x are a divalent element or a divalent atomic group, preferably O, S or NH and because the reaction product is subsequently subjected to a condensation in a manner of its own. known (Machine-translation by Google Translate, not legally binding)
ES0320837A1965-02-251965-12-17A procedure for the further processing of fiber and film-forming polyesters. (Machine-translation by Google Translate, not legally binding)
ExpiredES320837A1
(en)
Process for the production of poly (ethylene glycol terephthalate) by reacting dimethyl terephthalate with ethylene glycol and polycondensation of the reaction product
A process for producing dyes and prints for articles made from linear aromatic polyesters, more particularly from polymers of ethylene glycol terephthalate, or from polyamides.
Procedure for the preparation of polyesters of high molecular weight with high optical activity (Machine-translation by Google Translate, not legally binding)