Cuprammonium-stable cellulose esters and carbamates for dialysis

Details Cuprammonium-stable cellulose esters and carbamates for dialysis Cuprammonium-stable cellulose esters and carbamates for dialysis

1989-08-04

1991-10-08

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 93, 536 94, 536 95, 536 97, 536 98, 536 99, 21050024, 21050029, C08B 1100, C08B 11187, C08B 1108, C08B 1112

Patent

active

050555707

ABSTRACT:
A cellulose derivative comprising substitution-modified cellulose regenerated from a cuprammonium solution, the substituents being ester groups, wherein the acyl group represents one or more, optionally substituted, carbon chains with 10-36 carbon atoms, or a residue containing at least one aromatic and/or heterocyclic, optionally substituted, ring, or wherein the substituents are carbamate groups, the carbamoyl group of which represents a group containing one or more, optionally substituted, carbon chains with 2-36 carbon atoms, or a group containing at least one aromatic and/or heterocyclic, optionally substituted, ring. A dialysis membrane made from the substitution-modified cellulose, typically in the form of a flat film, a tubular film, or a hollow filament, is also disclosed.

REFERENCES:
patent: 3475410 (1969-10-01), Britton
patent: 4668396 (1987-05-01), Baurmeister et al.
patent: 4872983 (1989-10-01), Diamantoglou et al.
"Biocompatibility of Hemodialysis Membranes", Asaio Journal, Apr./Jun. 1984, vol. 7.
"Anaphylatoxin Formation During Hemodialysis: Effects of Different Dialyzer Membranes" by Dennis E. Chenoweth, Alfred K. Cheung, and Lee W. Henderson, Kidney International, vol. 24, 1983, pp. 764-769.

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