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Rhone Poulenc SA
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Rhone Poulenc SA
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Publication date
Application filed by Rhone Poulenc SAfiledCriticalRhone Poulenc SA
Publication of ES257820A1publicationCriticalpatent/ES257820A1/en
C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
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Chemical & Material Sciences
(AREA)
Organic Chemistry
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Engineering & Computer Science
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Oil, Petroleum & Natural Gas
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Polyesters Or Polycarbonates
(AREA)
Paper
(AREA)
Abstract
Process for the preparation of sorbic acid, characterized in that the polyester obtained by condensation of ketene with the crotone is heated to 110-145º, with a concentrated solution of alkali hydroxide. (Machine-translation by Google Translate, not legally binding)
ES0257820A1959-07-311960-05-04Procedure for the preparation of sorbic acid (Machine-translation by Google Translate, not legally binding)
ExpiredES257820A1
(en)
Procedure for the preparation of synthetic esters, especially of modified hydrocarbon resins (Machine-translation by Google Translate, not legally binding)
Method of procurement in state of great purity of salts of vitamin acids of basic antibiotics of the species estreptomyces. (Machine-translation by Google Translate, not legally binding)