发明授权
US5891954A Method of making alcohol stable emulsions ABD microemulsions 失效
制备醇稳定乳液ABD微乳液的方法

Method of making alcohol stable emulsions ABD microemulsions
摘要:
A solution of an alcohol stable emulsion or microemulsion containing an organopolysiloxane is made by polymerizing a cyclic siloxane in an aqueous medium containing the cyclic siloxane, a nonionic surfactant, an ionic surfactant, and a catalyst, until an organopolysiloxane of desired molecular weight is obtained; adding a silicone polyether to the emulsion or microemulsion and mixing the silicone polyether and the emulsion or microemulsion to form a blend; and adding the blend of silicone polyether and emulsion or microemulsion to aqueous alcohol. It is beneficial to cool the blend to below 20.degree.-25.degree. C. before adding it to aqueous alcohol. It is also beneficial to mix the silicone polyether and the emulsion or microemulsion without application of mechanically induced shear.
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