Corrosion inhibition with bilayer-forming surfactants
    31.
    发明授权
    Corrosion inhibition with bilayer-forming surfactants 失效
    用双层形成表面活性剂进行腐蚀抑制

    公开(公告)号:US5456767A

    公开(公告)日:1995-10-10

    申请号:US137657

    申请日:1993-10-15

    CPC分类号: C23F11/10 C09K8/54

    摘要: A method for inhibiting corrosion of a metal surface in a liquid medium is described. The method comprises incorporating into the medium a corrosion inhibiting amount of a combination of a surfactant that forms a bilayer on the metal surface in the fluid and a corrosion inhibitor that solubilizes in the medium in the presence of the surfactant. The amount of surfactant is sufficient to produce a bilayer on the metal surface in the medium. The combination isa. an anionic surfactant that forms a bilayer on the metal surface and a cationic corrosion inhibitor;b. a cationic surfactant that forms a bilayer on the metal surface and an anionic corrosion inhibitor;c. an ionic surfactant that forms a bilayer on the metal surface and an ionic corrosion inhibitor having a pendent, generally straight chain hydrocarbon or substituted hydrocarbon moiety of from about 10 to about 18 carbon atoms; ord. an ionic surfactant that forms a bilayer on the metal surface and a non-ionic corrosion inhibitor.Related compositions and methods are also disclosed.

    摘要翻译: 描述了一种用于抑制液体介质中的金属表面腐蚀的方法。 该方法包括在介质中加入腐蚀抑制量的在流体中的金属表面上形成双层的表面活性剂和在表面活性剂存在下溶解在介质中的腐蚀抑制剂的组合。 表面活性剂的量足以在介质中的金属表面上产生双层。 组合是一个。 在金属表面形成双层的阴离子表面活性剂和阳离子缓蚀剂; b。 在金属表面上形成双层的阳离子表面活性剂和阴离子腐蚀抑制剂; C。 在金属表面上形成双层的离子型表面活性剂和具有约10至约18个碳原子的侧链,通常为直链烃或取代烃部分的离子腐蚀抑制剂; 或d。 在金属表面上形成双层的离子表面活性剂和非离子腐蚀抑制剂。 还公开了相关的组合物和方法。

    Compounds containing sulfur and amino groups
    32.
    发明授权
    Compounds containing sulfur and amino groups 失效
    含硫和氨基的化合物

    公开(公告)号:US4981609A

    公开(公告)日:1991-01-01

    申请号:US275607

    申请日:1988-11-25

    摘要: This invention relates to the following:(1) An amino-containing composition characterized by polymercapto groups,(2) A polyamino-containing composition characterized by mercapto or polymercapto groups,(3) A composition characterized by the presence ofA. a mercapto or polymercapto groups, andB. a nitrogen-containing group characterized by at least one of the following:1. an amido or a polyamido group,2. a cyclic amidine or a polycyclic amidine group,3. an epihalohydrin-derived amino-containing group.This invention also relates to the use of the above compositions as corrosion inhibitors.

    摘要翻译: 本发明涉及以下:(1)以聚合物巯基为特征的含氨基组合物,(2)以巯基或聚合物巯基为特征的含聚氨基的组合物,(3)一种组合物,其特征在于存在A.巯基或 聚合巯基和B.含氮基团,其特征在于以下至少一种:1.酰胺基或聚酰胺基,环状脒或多环脒基,3.表卤代醇衍生的含氨基的基团 。 本发明还涉及上述组合物作为腐蚀抑制剂的用途。

    Hexahydropyrimidines and corresponding linear polyamines
    33.
    发明授权
    Hexahydropyrimidines and corresponding linear polyamines 失效
    六氢嘧啶和相应的线性多胺

    公开(公告)号:US4480095A

    公开(公告)日:1984-10-30

    申请号:US970413

    申请日:1978-12-18

    IPC分类号: C07D239/04

    CPC分类号: C07D239/04

    摘要: This invention relates to a process of reducing 2,4,5-trialkyl 2,3,4,5-tetrahydropyrimidine and/or 2,5,6,8,9-pentaalkyl 1,3,7-triazabicyclo (3,3,1) non-3-enes to yield 2,4,5-trialkylhexahydropyrimides and/or 2,4,5,6-tetraalkyl-5-(2-azoalkyl) hexahydropyrimidines; and to the cleavage of the above reduced products so as to convert the above hexahydropyrimides from cyclic amines to corresponding linear diamines and triamines. This invention also relates to the products produced by the processes.

    摘要翻译: 本发明涉及一种还原2,4,5-三烷基2,3,4,5-四氢嘧啶和/或2,5,6,8,9-五烷基1,3,7-三氮杂双环(3,3,3- 1)非3-烯,得到2,4,5-三烷基六氢嘧啶和/或2,4,5,6-四烷基-5-(2-偶氮烷基)六氢嘧啶; 以及上述还原产物的裂解,以将上述六氢嘧啶从环胺转化为相应的线性二胺和三胺。 本发明还涉及通过该方法生产的产品。

    Hydroxy and hydroperoxy tetrahydropyrimidines
    35.
    发明授权
    Hydroxy and hydroperoxy tetrahydropyrimidines 失效
    羟基和氢过氧四氢嘧啶

    公开(公告)号:US4447606A

    公开(公告)日:1984-05-08

    申请号:US28149

    申请日:1979-04-09

    CPC分类号: C23F11/149 C07D239/70

    摘要: This invention relates to 5-hydroperoxy and/or 5-hydroxy derivatives of 2,2,4,4-dipentamethylene 5,6-tetramethylene 2,3,4,5-tetrahydropyrimidines; and to the preparation thereof. The compounds of this invention have utility as corrosion inhibitors.

    摘要翻译: 本发明涉及2,2,4,4-二亚甲基5,6-四亚甲基2,3,4,5-四氢嘧啶的5-氢过氧基和/或5-羟基衍生物; 及其制备。 本发明的化合物可用作腐蚀抑制剂。

    Preparation of perhydrophenanthridines
    38.
    发明授权
    Preparation of perhydrophenanthridines 失效
    制备全氢苯并菲啶

    公开(公告)号:US4346223A

    公开(公告)日:1982-08-24

    申请号:US264900

    申请日:1981-05-18

    摘要: This invention relates to the reduction of THP to perhydrophenanthridines (PHA) with formic acid. This is illustrated by the following equation ##STR1## where R is hydrogen or a substituted group, such as hydrocarbon, for example alkyl, etc.; and X and Y are hydrogen or a substituted group, such as a hydrocarbon group containing a functional group, for example alkyl-X where X is a functional group such as nitrilo, carboxyl, etc. The perhydrophenanthridines of this invention are useful as corrosion inhibitors and as fuel stability additives.

    摘要翻译: 本发明涉及用甲酸将THP还原成全氢化菲啶(PHA)。 这通过以下方程式进行说明:其中R是氢或取代基的2,2,4,4-二亚戊基5,6-四亚甲基2,3,4,5-四氢嘧啶+ 例如烃,例如烷基等; X和Y是氢或取代基,例如含有官能团的烃基,例如烷基-X,其中X是诸如次氮基,羧基等官能团。本发明的全氢菲啶可用作腐蚀抑制剂 并作为燃料稳定性添加剂。