ES213047A1 - A method for the manufacture of artificial products of viscosa (Machine-translation by Google Translate, not legally binding)
- Google Patents
A method for the manufacture of artificial products of viscosa (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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Akzo NV
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Algemene Kunstzijde Unie NV
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Publication of ES213047A1publicationCriticalpatent/ES213047A1/en
Treatments Of Macromolecular Shaped Articles
(AREA)
Abstract
A method for the manufacture of artificial viscose products in which zinc compounds are used in the coagulating bath and acid baths for the subsequent treatment characterized in that sufficient formaldehyde is added to the acidic treatment bath which still contains zinc ions to combine the most of the total amount of hydrogen sulphide present and not more than 2 moles of formaldehyde per mole of hydrogen sulphide present. (Machine-translation by Google Translate, not legally binding)
ES0213047A1953-02-101954-01-08A method for the manufacture of artificial products of viscosa (Machine-translation by Google Translate, not legally binding)
ExpiredES213047A1
(en)
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