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Boehme Fettchemie GmbH
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Boehme Fettchemie GmbH
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Publication of ES287904A1publicationCriticalpatent/ES287904A1/en
Treatment And Processing Of Natural Fur Or Leather
(AREA)
Abstract
Process for the preparation of tanning resins, characterized in that, as a starting material, instead of the alkali salts of aromatic sulfonic acids, all or part of the salts of lignin sulphonic acids and/or instead of melamine, wholly or partly urea or derivatives of urea. (Machine-translation by Google Translate, not legally binding)
ES0287904A1962-05-111963-05-10Procedure for the preparation of curanting resins (Machine-translation by Google Translate, not legally binding)
ExpiredES287904A1
(en)
Procedure for the manufacture of proto-cellulose of woods of frondosas through simple cooking with solution anhydride sulfuroso (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of 1-amino-2-hydroxy-alcoxy-4-hydroxyantraquinones or 1-amino-2-alcoxyalcoxy-4-hydroxyantraquinones. (Machine-translation by Google Translate, not legally binding)