Low density porous crosslinked polymeric materials

Details Low density porous crosslinked polymeric materials Low density porous crosslinked polymeric materials

C - Chemistry, Metallurgy

08

F

C08F 2/32 (2006.01) B01F 17/34 (2006.01) C08J 9/28 (2006.01) G01N 13/00 (2006.01) G01N 13/02 (2006.01)

Patent

CA 2170378

Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and polymeriza- tion initiators are obtained by using saccharide fatty acid esters as surfactants. The amount of surfactants necessary fo form stable high internal phase water-in-oil emulsions is decreased by using saccharide fatty acid esters as surfactants. Further, hydrophobic foams can be obtained by using saccharide fatty acid esters.

On obtient des émulsions eau-dans-l'huile stables, à phase interne élevée, contenant des monomères de vinyle polymérisables, des monomères de réticulation et des initiateurs de polymérisation en utilisant des esters d'acide gras de saccharides comme tensioactifs. On réduit la quantité de tensioactifs nécessaires pour obtenir des émulsions eau-dans-l'huile stables, à phase interne élevée, en utilisant des esters d'acides gras de saccharides comme tensioactifs. En outre, on peut obtenir des mousses hydrophobes en utilisant des esters d'acides gras de saccharides.

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