Foamable silicone oil compositions and methods of use thereof
    53.
    发明授权
    Foamable silicone oil compositions and methods of use thereof 失效
    可发泡硅油组合物及其使用方法

    公开(公告)号:US6121210A

    公开(公告)日:2000-09-19

    申请号:US260301

    申请日:1999-03-02

    申请人: Anthony J. Taylor

    发明人: Anthony J. Taylor

    IPC分类号: C10M169/04

    摘要: Foamable, silicone oil compositions and methods of lubricating surfaces with such compositions. Compositions in accordance with the invention may be sprayed onto surfaces from aerosol canisters or other spray containers to form stable foams which do not run or drip, preferably for periods in excess of sixteen hours. A composition in accordance with the invention comprises an aqueous emulsion of a silicone oil. Oil-in-water emulsions of polysiloxanes, such as polydimethylsiloxane, having melting points no greater than about 32.degree. F. (0.degree. C.) are preferred. The composition further comprises a liquefiable gaseous propellant, preferably including a volatile liquid hydrocarbon or a mixture of volatile liquid hydrocarbons. The composition further comprises a solid, non-ionic lipophilic surfactant, preferably having an HLB value of about 3 to about 8, more preferably about 3.5 to about 6. Useful surfactants include fatty acid esters, fatty alcohol ethers and fatty acid amides. The high temperature stability of the composition may be improved by adding a high temperature foam stabilizer having a melting point greater than about 110.degree. F. (43.degree. C.). Preferred foam stabilizers include polar, linear saturated long chain fatty alcohols having twenty or more carbon atoms in the molecule.

    摘要翻译: 可发泡的硅油组合物和用这种组合物润滑表面的方法。 根据本发明的组合物可以喷雾到来自气溶胶罐或其它喷雾容器的表面上以形成不运行或滴落的稳定泡沫,优选超过16小时。 根据本发明的组合物包含硅油的水性乳液。 优选熔点不大于约32°F(0℃)的聚硅氧烷(例如聚二甲基硅氧烷)的水包油乳液。 组合物还包含可液化的气态推进剂,优选包括挥发性液体烃或挥发性液体烃的混合物。 组合物还包含固体,非离子亲脂性表面活性剂,优选HLB值为约3至约8,更优选约3.5至约6.可用的表面活性剂包括脂肪酸酯,脂肪醇醚和脂肪酸酰胺。 可以通过加入熔点大于约110°F(43℃)的高温泡沫稳定剂来改善组合物的高温稳定性。 优选的泡沫稳定剂包括在分子中具有二十个或更多碳原子的极性,线性饱和长链脂肪醇。