C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/7206
C08L 83/08 (2006.01) C08J 3/03 (2006.01)
Patent
CA 2019168
According to this invention, a microemulsion of an organopolysiloxane containing cyclohexylamino groups is prepared as follows: component (A), an organopolysiloxane containing cyclohexylamino groups and component (B), a nonionic surfactant and component (C), ethylene glycol or propylene glycol are blended. Formic acid or acetic acid, component (D) and water, component (E), are then added. The mixture is then stirred to form a emulsion precursor liquid, which is then dispersed in a prescribed amount of water. The microemulsion of the organopolysiloxane containing cyclohexylamino groups prepared using the method of this invention has an excellent shelf stability.
Selon la présente invention, une microémulsion d'un organopolysiloxane renfermant des groupes cyclohexylamino est préparée comme suit : on mélange un constituant (A), organopolysiloxane renfermant des groupes cyclohexylamino, un constituant (B), surfactif non ionique, et un constituant (C), éthylèneglycol ou propylèneglycol. On ajoute ensuite de l'acide formique ou de l'acide acétique, un constituant (D) et de l'eau, enfin un constituant (E). Le mélange est ensuite agité pour former un liquide précurseur sous forme d'émulsion, puis dispersé dans une quantité prescrite d'eau. La microémulsion de l'organopolysiloxane renfermant les groupes cyclohexylamino, préparée grâce à la méthode de la présente invention, possède une excellente stabilité de conservation.
Ona Isao
Ozaki Masaru
Dow Corning Toray Silicone Company Ltd.
Gowling Lafleur Henderson Llp
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