Dry cleaning system with low HLB surfactant
    86.
    发明授权
    Dry cleaning system with low HLB surfactant 失效
    具有低HLB表面活性剂的干洗系统

    公开(公告)号:US06461387B1

    公开(公告)日:2002-10-08

    申请号:US09507483

    申请日:2000-02-04

    CPC classification number: D06L1/04 D06L1/00 D06L4/12 D06L4/17

    Abstract: A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO2. The densified carbon dioxide is in a temperature range of about −78.5° C. to about 100° C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. The surfactant has a polysiloxane a branched polyalkylene oxide or a halocarbon group which is a functional CO2-philic moiety connected to a CO2-phobic functional moiety. The surfantant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

    Abstract translation: 用于从织物干燥土壤的系统,包括致密二氧化碳中的致密二氧化碳和表面活性剂。 致密化二氧化碳在约-78.5℃至约100℃的温度范围和约14.7至约10,000psi的压力范围内。 优选存在至少0.1体积%的改性剂。 表面活性剂具有聚硅氧烷,支链聚环氧烷或卤代烃基,其是与CO 2 - 恐怕功能部分连接的功能性亲水部分。 表面活性剂的HLB小于15,或者具有大于0.5:1的硅氧烷与取代的甲硅烷氧基之比。

    Solid particulate propellant systems and aerosol containers employing the same
    89.
    发明授权
    Solid particulate propellant systems and aerosol containers employing the same 有权
    固体颗粒推进剂系统和使用其的气溶胶容器

    公开(公告)号:US06218353B1

    公开(公告)日:2001-04-17

    申请号:US09211674

    申请日:1998-12-14

    CPC classification number: D06L1/00 D06L1/04

    Abstract: A liquid composition useful for suspending and dispensing a solid particulate comprises carbon dioxide, a surfactant, an organic co-solvent, and the solid particulate to be suspended. The composition may optionally contain water. The composition is useful as a propellant in an aerosol container for spraying the solid particulate from the container.

    Abstract translation: 用于悬浮和分散固体颗粒的液体组合物包括二氧化碳,表面活性剂,有机共溶剂和要悬浮的固体颗粒。 组合物可任选地含有水。 该组合物可用作用于从容器喷射固体颗粒的气溶胶容器中的推进剂。

    Dry cleaning methods and compositions
    90.
    发明授权
    Dry cleaning methods and compositions 有权
    干洗方法和组合物

    公开(公告)号:US06200352B1

    公开(公告)日:2001-03-13

    申请号:US09234145

    申请日:1999-01-19

    CPC classification number: D06L1/00 D06L1/04

    Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, a surfactant, and an organic co-solvent. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature. The surfactant is preferably one that does not contain a CO2-philic group. The organic co-solvent is preferably an alkane and has a flash point above 140° F.

    Abstract translation: 用于在二氧化碳中干洗诸如织物和衣服的物品的方法包括使待清洁物品与液体干洗组合物接触足够时间以清洁织物。 液体干洗组合物包含二氧化碳,表面活性剂和有机共溶剂的混合物。 在接触步骤后,将物品与液体干洗组合物分离。 该方法优选在环境温度下进行。 表面活性剂优选不含有二氧化碳亲口基团的表面活性剂。 有机共溶剂优选为烷烃,闪点在140°F以上。

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