Thermoplastic material consisting of aliphatic carbamic acid...

C - Chemistry – Metallurgy – 08 – B

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C08B 11/15 (2006.01) C08B 11/20 (2006.01) C08B 15/06 (2006.01) C08G 18/64 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2201807

The present invention relates to evenly substituted polysaccharide derivatives having the general structure: polysaccharide-O-R wherein polysaccharide-O represents a substituted or unsubstituted polysaccharide unit and R is a substituent of a polysaccharide-OH group having either the structure R = -A-B- or the structure R = -B-, wherein A is a linear polyether chain having the following structure: A = (-D-O-)n wherein D denotes a linear aliphatic branched or unbranched chain having 2 to 12 C atoms, O represents an oxygen atom and n is a number equal to or greater than 1, and B represents a substituted carbamic acid having the structure (see fig.I) wherein E denotes a linear or branched aliphatic chain having 1 to 18 C atoms.

La présente invention porte sur des dérivés polysaccharides substitués également, de structure générale suivante : polysaccharide-O-R, où polysaccharide-O représente une unité de polysaccharide substituée ou non et R est un substituant d'un groupe polysaccharide-OH de structure R = -A-B- ou R = -B-, où A est une chaîne linéaire polyéther de structure suivante : A = (-D-O-)n, où D représente une chaîne linéaire aliphatique ramifiée ou non ayant 2 à 12 atomes de C, O représente un oxygène et n est un nombre égal ou supérieur à 1, et B représente un acide carbamique substitué de structure (voir la fig. I), où E représente une chaîne aliphatique linéaire ou ramifiée ayant 1 à 18 atomes de C.

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