C - Chemistry – Metallurgy – 08 – B
Patent
C - Chemistry, Metallurgy
08
B
C08B 31/08 (2006.01) C08B 33/08 (2006.01) C08B 35/08 (2006.01) C08B 37/00 (2006.01)
Patent
CA 2575178
The invention relates to a method for the controlled oxidation of oligo- and/or polysaccharides containing free -CH2OH primary hydroxyl groups, using an oxidising agent. The invention is characterised in that the oxidation reaction is performed in a densified fluid which is inert in relation to the oxidising agents employed. The invention is suitable for use, for example, in the food, paint, paper, textile, agricultural and pharmaceutical industries, in the medical, biomedical or paramedical fields, in the surgical field, in the cosmetic industry and as agents for the complexing or sequestering of metal ions, heavy metals and radioactive elements in the nuclear industry.
L'invention a pour objet un procédé d'oxydation contrôlée d'oligo-et/ou de polysaccharides contenant des groupes hydroxyles primaires -CH2OH libres, à l'aide d'un agent oxydant, caractérisé en ce qu'on réalise la réaction d'oxydation dans un fluide densifié inerte vis-à-vis des agents oxydants mis en oeuvre. Application, notamment, dans l'industrie alimentaire, des peintures, du papier, des textiles, en agriculture, dans l'industrie pharmaceutique, dans le domaine médical, biomédical ou paramédical ; en chirurgie, dans l'industrie cosmétique, et comme agents complexants ou séquestrants, des ions métalliques, des métaux lourds et les éléments radioactifs dans l'industrie nucléaire.
Condoret Jean-Stephane
Montanari Suzelei
Samain Daniel
Vignon Michel
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Centre National de La Recherche Scientifique
Institut National Polytechnique de Toulouse
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