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Bayer AG
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Bayer AG
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Publication of ES252617A1publicationCriticalpatent/ES252617A1/es
Processes Of Treating Macromolecular Substances
(AREA)
Abstract
Procedimiento para la producción de polioximetilenos de elevado peso molecular elaborables por vía termoplástica caracterizado porque los grupos hidroxilo extremos de polioximetilenos de elevado peso molecular con una viscosidad interior de por lo menos 1,0 próximamente, medida a 60º en disoluciones de p-clorofenol al 0,5%, es esterifican por los métodos conocidos evitando toda descomposición importante del polioximetileno.
ES0252617A1958-11-251959-10-13Procedimiento para la produccion de polioximetilenos de elevado peso molecular por via termoplastica
ExpiredES252617A1
(es)