Alkyl- and alkenyl-sulfosuccinate starchhalf-esters, a method fo

Details Alkyl- and alkenyl-sulfosuccinate starchhalf-esters, a method fo Alkyl- and alkenyl-sulfosuccinate starchhalf-esters, a method fo

1982-04-01

1983-06-07

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536108, 536110, C08B 3102, C08B 3104

Patent

active

043872212

ABSTRACT:
Novel C.sub.1 -C.sub.22 alkyl- and C.sub.3 -C.sub.22 alkenyl-sulfosuccinate starch half-esters are prepared by reacting a starch base or a modified starch base containing anionic, cationic, and/or nonionic substituent groups with about 0.1 to 100% by weight of the corresponding alkyl- or alkenyl-sulfosuccinic anhydride. The reaction is carried out at pH 5-9 and at 5.degree.-90.degree. C. for 0.5-20 hours or at pH 9-11 at 5.degree.-30.degree. C. for about 0.5-3 hours. This one-step method may also be used to prepare sulfosuccinate half-esters. The long chain derivatives (e.g. octyl-, octadecyl-, octenyl-, and dodecenyl-sulfosuccinate half-esters) are hydrophobic.

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