GUAR GRAPH-INTERPOLYMERIZATION AND OTHER POLYSACCHARIDES BY ELECTRON-BEAM MACHINING Russian patent published in 2008 - IPC C08F251/00 C08B37/00 C08B33/00 C08B35/00 

FIELD: organic chemistry.

SUBSTANCE: graft method of functional group to polysaccharide polymer of galactomannan type, preferentially to guar by means of high-energy electron beams radiation with non-saturated monomer occurrence containing specified functional group. Method can contain depolymerization of graft-polymer up to specified molecular weight. Prefential galactomannan processed under this method is guar gum, guar endosperm and hydroxypropylguar. According to preferential variant of method realization guar gum is also depolymerized, preferentially to molecular weight lower than approximately 700000 daltons and the most preferentially to molecular weight from approximately 100000 daltons to approximately 250000 daltons. According to the most preferable variant depolymerized guar has polydispersity lower, approximately 3.0. Graft-polysaccharide is applied in cosmetic formulations such as moisturizing stick.

EFFECT: possibility for functional groups graft to polysaccharide polymer by means of high-energy electron beams radiation.

17 cl, 1 dwg, 6 tbl, 5 ex