Process of producing dextrin carboxylates

Details Process of producing dextrin carboxylates Process of producing dextrin carboxylates

1976-08-09

1978-07-11

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536115, C08D 3716, C07H 1310

Patent

active

041003420

ABSTRACT:
Dextrin carboxylates having about 20 to 100 anhydroglucose units of which from about 2.2 to about 3.0 average OH groups per unit are esterified through one of the carboxyls of a non-aromatic polycarboxylic acid of 2-4 carboxyls containing 2 to 10 carbon atoms, are prepared by (1) reacting the dextrin with at least about 2.8 moles of the anhydride of the polycarboxylic acid in acetic acid in the presence of a tertiary amine catalyst and (2) adding the reaction mixture to a solvent which precipitates the dextrin carboxylate and (3) isolating the so-produced dextrin carboxylate.

REFERENCES:
patent: 3720663 (1973-03-01), Tessler
patent: 3919107 (1975-11-01), Thompson
Kirk-Othmer, vol. 8, Encylopedia of Chemical Tech. Interscience Publishers, N.Y., pp. 335-337 & 366.
Advances in Carbohydrate Chemistry, Whislter, R. vol. 1, 1945 Academ Press Inc., pp. 284-286.

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