Polygalactomannan ether compositions

Details Polygalactomannan ether compositions Polygalactomannan ether compositions

1975-11-17

1977-06-21

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

8 91, 162178, 252 855C, 252 89, 252352, 252 85C, 424361, 426573, 426658, 536122, C08B 3700

Patent

active

040313050

ABSTRACT:
This invention provides novel sulfohydroxypropyl ethers of polygalactomannans having a degree of substitution between about 0.01 and 3, and further provides a process for producing sulfohydroxypropyl ethers of polygalactomannan gums by contacting solid polygalactomannan gum with 3-halo-2-hydroxypropanesulfonic acid and alkali metal hydroxide or ammonium hydroxide under alkaline conditions in an aqueous solution of water-miscible solvent.

REFERENCES:
patent: 2806857 (1957-09-01), Paschall
patent: 3622564 (1971-11-01), Kittleman et al.
patent: 3632804 (1972-01-01), Gray et al.
patent: 3686164 (1972-08-01), Unger et al.
patent: 3808200 (1974-04-01), Bistline et al.
patent: 3912713 (1975-10-01), Boonstra et al.

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