Method of preparing cellulose ethers containing tertiary or quat

Details Method of preparing cellulose ethers containing tertiary or quat Method of preparing cellulose ethers containing tertiary or quat

1988-10-04

1990-07-10

Kight, III, John

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

Organic compounds

Carbohydrates or derivatives

536 84, 536 85, 536 91, 536 95, 536 96, 536 97, 536 98, C08B 1100, C08B 1102, C08B 11145, C08B 11193

Patent

active

049407856

ABSTRACT:
A method for preparing cellulose ethers containing tertiary or quaternary nitrogen by reacting alkylene epoxides with cellulose or its derivatives in an alkaline medium in the presence of water. Alkylene epoxides of the formulas ##STR1## or mixtures thereof, in which n=1, 2 or 3, R.sup.1, R.sup.2 and R.sup.3 correspond to the same or different alkyl groups with 1 to 18 carbon atoms or R.sup.1 corresponds to the benzyl group or --C.sub.2 H.sub.4 OH and X is chloride, bromide, sulfate or acetate are used as cationization agents.

REFERENCES:
patent: 3346563 (1967-10-01), Shildneck et al.
patent: 4281109 (1981-07-01), Jarowenko et al.
patent: 4332935 (1982-06-01), Fischer et al.

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