Process for elimination N-nitrosamines from N-nitrosamine-containing
compositions
    1.
    发明授权
    Process for elimination N-nitrosamines from N-nitrosamine-containing compositions 失效
    用于从含有N-亚硝胺的组合物中除去N-亚硝胺的方法

    公开(公告)号:US4675445A

    公开(公告)日:1987-06-23

    申请号:US796850

    申请日:1985-11-12

    CPC分类号: C07C209/90

    摘要: A process for eliminating N-nitrosamines, particularly N,N-dialkyl-N-nitrosamines and N-alkyl-N-aryl-N-nitrosamines from N-nitrosamine containing compositions through the addition of organic carboxylic acid halides. The process eliminates N-nitroso compounds without rearrangement to C-nitroso compounds.

    摘要翻译: 通过添加有机羧酸卤化物从N-亚硝胺的组合物中除去N-亚硝胺,特别是N,N-二烷基-N-亚硝胺和N-烷基-N-芳基-N-亚硝胺的方法。 该方法消除N-亚硝基化合物,而不排列成C-亚硝基化合物。

    Arylalkyl silicone sulfonate-silicate copolymers
    4.
    发明授权
    Arylalkyl silicone sulfonate-silicate copolymers 失效
    芳基烷基硅氧烷磺酸盐 - 硅酸盐共聚物

    公开(公告)号:US4362644A

    公开(公告)日:1982-12-07

    申请号:US250087

    申请日:1981-04-01

    IPC分类号: C09K5/20 C07F7/08

    CPC分类号: C09K5/20

    摘要: Novel arylalkyl silicone sulfonate-silicate copolymers are disclosed which are useful in inhibiting the corrosion of metals below sodium in the electromotive series that come in contact with aqueous liquids, especially aqueous alcohol solutions used as heat transfer media. Antifreeze concentrates and a process for inhibiting corrosion are also disclosed.

    摘要翻译: 公开了新的芳烷基硅氧烷磺酸盐 - 硅酸盐共聚物,其可用于抑制与含水液体,特别是用作传热介质的醇水溶液接触的电动系列中低于钠的金属的腐蚀。 还公开了防冻浓缩物和抑制腐蚀的方法。

    Novel aliphatic sulfosiloxane-silicate copolymers
    6.
    发明授权
    Novel aliphatic sulfosiloxane-silicate copolymers 失效
    新型脂族磺基硅氧烷 - 硅酸盐共聚物

    公开(公告)号:US4434065A

    公开(公告)日:1984-02-28

    申请号:US401087

    申请日:1982-07-23

    IPC分类号: C09K5/20 C09K5/00 C09K3/00

    CPC分类号: C09K5/20

    摘要: Sulfosiloxane-silicate copolymers are useful corrosion inhibitors in alcohol-based antifreeze compositions. The aliphatic sulfosiloxane-silicate copolymers contain repeating units derived from aliphatic sulfosiloxanes and water-soluble silicates.

    摘要翻译: 磺基硅氧烷 - 硅酸盐共聚物是醇基防冻剂组合物中有用的腐蚀抑制剂。 脂族磺基硅氧烷 - 硅酸盐共聚物含有衍生自脂族磺基硅氧烷和水溶性硅酸盐的重复单元。

    Alcohol composition containing novel hydroxy-substituted aliphatic
silicone sulfonate-silicate copolymers
    7.
    发明授权
    Alcohol composition containing novel hydroxy-substituted aliphatic silicone sulfonate-silicate copolymers 失效
    含有新型羟基取代的脂族硅氧烷磺酸盐 - 硅酸盐共聚物的醇组合物

    公开(公告)号:US4352742A

    公开(公告)日:1982-10-05

    申请号:US250050

    申请日:1981-04-01

    CPC分类号: C09K5/20

    摘要: Hydroxy-substituted aliphatic silicone sulfonate-silicate copolymers are useful metal corrosion inhibitors for metals that come in contact with aqueous liquids. Antifreeze concentrates and a process for inhibiting the corrosion of metals below sodium in the electromotive series which come in contact with aqueous liquids are disclosed.

    摘要翻译: 羟基取代的脂肪族硅氧烷磺酸盐 - 硅酸盐共聚物是与水性液体接触的金属的有用的金属腐蚀抑制剂。 公开了防冻浓缩物和抑制与含水液体接触的电动系列中低于钠的金属的腐蚀的方法。

    Method of making expandable polystyrene beads
    8.
    发明授权
    Method of making expandable polystyrene beads 失效
    制造可发性聚苯乙烯珠的方法

    公开(公告)号:US4174427A

    公开(公告)日:1979-11-13

    申请号:US927175

    申请日:1978-07-21

    IPC分类号: C08J9/22

    摘要: Expandable-polystyrene beads suitable for use in making impervious containers are made from a recipe including styrene, free-radical initiator and polyvinyl pyrrolidone, and this practice includes a step of washing the beads in a warm aqueous solution to which an alkoxylated nonionic surfactant having 70-90 percent of its molecular weight accounted for by oxyethylene units is added in an amount effective to cause the washing to remove contaminating grafted polyvinyl pyrrolidone from the surface of the beads and cause them to become expandable into impervious product containers.

    摘要翻译: 适用于制造不透水容器的可发泡聚苯乙烯珠粒由包括苯乙烯,自由基引发剂和聚乙烯吡咯烷酮的配方制成,并且这种做法包括在温和的水溶液中洗涤珠粒的步骤,向其中加入具有70 以氧化乙烯单元占90%的分子量加入有效量使洗涤从珠粒表面去除污染的接枝的聚乙烯吡咯烷酮,并使它们膨胀成不渗透的产品容器。

    Highly branched polyether polyols of high molecular weight
    9.
    发明授权
    Highly branched polyether polyols of high molecular weight 失效
    高支化聚醚多元醇高分子量

    公开(公告)号:US4061684A

    公开(公告)日:1977-12-06

    申请号:US736939

    申请日:1976-10-29

    IPC分类号: C08G65/334 C07C43/00 C10M7/16

    CPC分类号: C08G65/3344

    摘要: Highly branched polyether polyols of high molecular weight (such as over 12,000) are made by coupling an alkoxylated polyglycerol, by reaction of the sodium alcoholate of the oxyalkylated polyglycerol with a dibenzenesulfo or ditoluenesulfo ester of a diol containing 2 to 6 carbon atoms. Products obtained are viscous resinous products which are particularly suitable for use as hydrophilic water-swellable gels and other purposes.

    摘要翻译: 通过使烷氧基化聚甘油的醇钠与含有2至6个碳原子的二醇的二苯磺酸或二甲苯磺酸酯的反应,通过偶联烷氧基化聚甘油来制备高分子量的高支化聚醚多元醇(如12,000以上)。 获得的产品是特别适合用作亲水性水溶胀性凝胶和其它目的的粘性树脂产品。