Seal swell agent and process therefor
    5.
    发明授权
    Seal swell agent and process therefor 有权
    密封膨胀剂及其加工

    公开(公告)号:US07485734B2

    公开(公告)日:2009-02-03

    申请号:US11046073

    申请日:2005-01-28

    IPC分类号: C07D333/48

    摘要: A method of making 3-alkoxytetraalkylene sulfone. The method includes mixing an alcohol and a catalyst to form a first mixture. Alkadiene sulfone is reacted with the first mixture to form a reaction product. The reaction product is contacted with water at conditions sufficient to provide an organic phase and an inorganic phase. Subsequent to contacting the reaction product with water, the organic phase and inorganic phase are separated from one another.

    摘要翻译: 制备3-烷氧基四亚烷基砜的方法。 该方法包括混合醇和催化剂以形成第一混合物。 使二烷基二甲苯与第一混合物反应形成反应产物。 反应产物在足以提供有机相和无机相的条件下与水接触。 在使反应产物与水接触后,有机相和无机相彼此分离。

    Production of dihydrocarbyl polysulfides
    8.
    发明授权
    Production of dihydrocarbyl polysulfides 失效
    二氯代聚碳酸酯的生产

    公开(公告)号:US5146000A

    公开(公告)日:1992-09-08

    申请号:US674148

    申请日:1991-03-25

    申请人: Nubar Ozbalik

    发明人: Nubar Ozbalik

    CPC分类号: C07C319/24

    摘要: Hydrocarbyl mercaptan is reacted with sulfur in the presence of added alumina catalyst. With tertiary alkyl mercaptans high yields of di-tert-alkyl trisulfides are formed with excellent selectivity. With primary alkyl mercaptans the process can be controlled to form products enriched in either dialkyl disulfides or dialkyl trisulfides, and in either case little or no tetrasulfides are formed. The process is environmentally friendly in that halogen-containing reactants such as sulfur chlorides are not used and thus the products are not contaminated with significant amounts of halogen residues.