Patent
Modified chitin for biocompatible dialysis membranes ii and process for preparation of modified cellulose and modified chitin for use therewith
TLDR
In this paper, a modified cellulose and chitin for biocompatible dialysis membranes having a structure represented by the formula ##STR1## wherein Cell is cellulose or Chitin, in each case without hydroxyl groups, s=3 in the case of cellulose, and s=2 in a case of chitins, X denotes specified functional groups, R" is H or R, Z corresponds to the following groups of atoms: SR", SO3 H and salts thereof, SO-R, SONR"2, SO2 -Abstract:
A modified cellulose and/or chitin for biocompatible dialysis membranes having a structure represented by the formula ##STR1## wherein Cell is cellulose or chitin, in each case without hydroxyl groups, s=3 in the case of cellulose and s=2 in the case of chitin, R' is CH3 and/or C2 H5 and/or C3 H7, X denotes specified functional groups, R" is H or R, Z corresponds to the following groups of atoms: SR", SO3 H and salts thereof, SO-R, SONR"2, SO2 -R, SO2 NR"2, SO2 H and salts thereof, F, Cl, Br, I, NR"2, PR"2, PO3 H2 and salts thereof, PO2 H(OR), PO(OR)2, PO2 HR" and salts thereof, POR"(OR) and POR"2, x+t=0.75 to 2.85, t=0 to 2.85, x=0 to 2.85, and z=0.01 to 0.45. A process for preparation of the cellulose and/or chitin derivatives is also disclosed.read more
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References
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Patent
Novel cellulose solutions
TL;DR: The preparation of cellulose derivatives using the cellulose solutions is also described in this paper, where the solutions may contain up to about 8% lithium chloride and up to 3% cellulose.
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Carboxylated cellulose ester and manufacture thereof
Richard T. Bogan,Chung-Ming Kuo +1 more
TL;DR: In this paper, the carboxylated cellulose esters of the present invention are prepared by reacting a cellulose enter with ozone at a temperature of about 25 to 80oC for a period of time sufficient to yield the car boxylated ester product.
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Manufacture of organic compounds containing basic substituents
TL;DR: In this paper, the authors present a method for the manufacture of organic compounds containing basic substituents, which is a continuation in part of their application Ser. No. 40,352, filed Sept. 12, 1935.
Patent
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Patent
Biocompatible cellulose dialysis membrane with increased adsorption of beta-2-microglobulin
TL;DR: In this paper, a dialysis membrane for improved biocompatibility is composed of a modified cellulose which has a structure represented by the formula ##STR1## Cell, the framework of the unmodified cellulose molecule or of the chitin molecule, in each case without hydroxyl groups.