| 摘要 |
<p>A process for making stable high viscosity organopolysiloxane emulsion having particle size up to 150 nanometer and in particular to an emulsion-polymerization process involving a simple andcost-effective faster completion of emulsification of organopolysiloxane by usig standard homogenizer and also subsequent polymerization of the organopolysiloxan at controlled temperature. The process involves a selective combination of non-ionic emulsifier together with an at least one anionic emulsifier to achive the desired particle size emulsion. Importantly, the selective mix of non-ionic and anionic emulsifiers havig HLB value of the mixture near to 12-15 and maintaining a temperature of up to 50°C is found to favour obtaining low particle stable emulsion with any standard homogeniser avoiding need for high pressure homogenizing.</p> |
