B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
134/56
B01F 17/54 (2006.01) B01D 19/04 (2006.01)
Patent
CA 2029517
The present invention provides a silicone antifoaming agent composition excellent in the persistence of the foam controlling effect. The silicone antifoaming agent composition comprises a polydiorganosiloxane and silica, which form an antifoaming agent to be improved, and 4 to 2,500 parts by weight per 100 parts by weight of the sum total of the polydiorganosiloxane plus silica of a modified silicone oil having at least one organic group bonded to a silicon atom and having at least one functional group selected from among epoxy, amino, amide, carboxyl, alkoxyl and hydroxyl groups and at least one substituted or unsubstituted polyoxyalkylene group bonded to a silicon atom.
La présente invention porte sur une composition antimousse à base de silicone, excellente quant à la persistance de l'effet antimoussant. Cette composition antimousse à base de silicone renferme un polydiorganosiloxane et de la silice, qui forment un agent antimousse devant être amélioré, et de 4 à 2,500 parties en poids par 100 parties en poids de la somme totale du polydiorganosiloxane plus la silice d'une huile de silicone modifiée renfermant au moins un groupe organique lié à l'atome de silicium et possédant au moins un groupe fonctionnel, choisi parmi un groupe époxy, amino, amido, carboxy, alcoxy et hydroxy, et au moins un groupe polyoxyalkylène avec ou sans substitution, lié à l'atome de silicium.
Aizawa Koichi
Shouji Hiroaki
Dow Corning Kabushiki Kaisha
Gowling Lafleur Henderson Llp
LandOfFree
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