PROCESS AND DRESSING

摘要

An anti-microbial absorbent chitosan, optionally in the form or fibres, derivatised by reaction with an optionally substituted alkylene oxide, a non-woven fabric and an absorbent device comprising the derivatised chitosan, methods for the preparation of such a chitosan, non-woven fabric and an absorbent device, and the use of said absorbent device in wound care.

主权项

1. A further derivatised chitosan wherein in place of at least part of the chitosan hydroxyl groups the chitosan is substituted by basified hydroxyethyl ester groups of formula (I)
HO—(R1)(R2)C—C(R3)(R4)—O*—R—O—  (I) wherein each of R1, R2, R3 and R4 is H or an optionally substituted hydrocarbyl group, and R is an organic or Inorganic acyl hydrocarbyl residue, orientated such that the basified HO—(R1)(R2)C—C(R3)(R4)— moiety forms an ester linkage with the oxygen atom marked *.