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Expired
Application number
GB2162/29A
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US Industrial Alcohol Co
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US Industrial Alcohol Co
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Application filed by US Industrial Alcohol CofiledCriticalUS Industrial Alcohol Co
Publication of GB306531ApublicationCriticalpatent/GB306531A/en
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
C08B3/00—Preparation of cellulose esters of organic acids
C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate
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Materials Engineering
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Abstract
306,531. U.S. Industrial Alcohol Co., (Assignees of Burghart, L. M.). Feb. 24, 1928 [Conventiondate]. Acetic anhydride is prepared by reaction between ketone and acetic acid in liquid sulphur dioxide, with or without, a suitable catalyst, for example sulphuric acid. Specification 329,718, [Class 2 (ii), Cellulose &c.], is referred to.
GB2162/29A1928-02-241929-01-22Manufacture of cellulose acetate
ExpiredGB306531A
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