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    REACTIVE HINDERED AMINE LIGHT STABILIZERS
    262.
    发明授权
    REACTIVE HINDERED AMINE LIGHT STABILIZERS 失效
    GEHINDERTE反应AMINLICHTSTABILISATOREN

    公开(公告)号：EP0410970B1

    公开(公告)日：1996-08-14

    申请号：EP89902901.1

    申请日：1989-02-13

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： KAZMIERCZAK, Robert, T. ,  MAC LEAY, Ronald, E.

    IPC: C08K5/3435 ,  C07D211/56 ,  C07D211/92 ,  C07D211/60

    CPC classification number: C07D401/04 ,  C07D211/58 ,  C08K5/3435 ,  C08L23/12

    Abstract: N-(2,2,6,6-tetraalkyl-4-piperidinyl)amine-hydrazides of dicarboxylic acids contain a light stabilizing group, a heat stabilizing group, and a reactive hydrazide functionality in the same molecule. The reactive stabilizers are prepared by reacting 4-amino-2,2,6,6-tetraalkylpiperidines with diesters (or mono ester acid chlorides) of dicarboxylic acids or dialkyl itaconates followed by hydrazinolysis of the ester group of the intermediate mono ester-amide. The compounds are useful for introducing permanent heat and light stability to coreactive polymers or copolymers. They are also useful in the stabilization of inert polymeric systems against the degradative effects of heat and light when merely mixed with, rather than reacted with, the polymers for which stabilization is sought.

    Adiabatic hydrofluorination of hydrochlorofluorocarbons
    265.
    发明公开
    Adiabatic hydrofluorination of hydrochlorofluorocarbons 失效
    Adiabatische Hydrofluorierung von Chlorfluorkohlenwasserstoffen

    公开(公告)号：EP0714873A1

    公开(公告)日：1996-06-05

    申请号：EP95114299.1

    申请日：1995-09-12

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Bolmer, Michael Sheppard ,  Elsheikh, Maher Yousef ,  Wismer, John Aloysius ,  Schirmann, Jean Pierre

    IPC: C07C17/20

    CPC classification number: C07C17/206 ,  B01J27/125 ,  B01J27/128 ,  C07C19/08

    Abstract: Process for adiabatically hydrofluorinating hydrochlorocarbons and hydrochlorofluorocarbons in the gaseous phase in the presence of a catalyst that is active at the initial reaction temperature and remains highly selective at the maximum reaction temperature, e.g., a Cr catalyst. The molar ratio of HF to starting compound is at least about 2.5:1. The initial reaction temperature is selected such that the HF in the feed is partially associated but not completely (HF)₆. The catalyst may be unsupported or supported.

    Abstract translation: 在催化剂存在下，在气相中绝热氢氟化氢氯碳氢化合物和氢氯氟烃的方法，其在初始反应温度下是有活性的，并且在最大反应温度例如Cr催化剂下保持高选择性。 HF与起始化合物的摩尔比为至少约2.5:1。 选择初始反应温度使得进料中的HF部分相关但不完全（HF）6。 催化剂可以是未负载的或支持的。

    Process for the manufacture of high purity linear c4+ alkyl mercaptans
    266.
    发明公开
    Process for the manufacture of high purity linear c4+ alkyl mercaptans 失效
    Verfahren zur Herstellung von sehr reinen C4 + -Alkylmercaptanen

    公开(公告)号：EP0706998A1

    公开(公告)日：1996-04-17

    申请号：EP95110418.1

    申请日：1995-07-04

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Gernon, Michael David ,  Sandler, Stanley Robert

    IPC: C07C319/06 ,  C07C321/04

    CPC classification number: C07C319/06 ,  C07C321/04

    Abstract: Linear C₄+ alkyl mercaptans of high purity are prepared by the reaction of a di-linear(C₄+) alkyl sulfide with hydrogen sulfide at elevated temperature in the presence of an alumina material selected from gamma/eta alumina or gamma/eta alumina impregnated with up to 20% w/w of titania or rhenium oxide.

    Abstract translation: 直链烷基二硫化物通过与H 2 S反应的催化剂转化成相应的硫醇，所述催化剂包含任选地浸渍有至多20重量％的二氧化钛和/或氧化铼的eta /γ氧化铝。

    A process for the preparation of alkane sulfonic acid and alkane sulfonyl chloride
    267.
    发明公开
    A process for the preparation of alkane sulfonic acid and alkane sulfonyl chloride 无效
    Verfahren zur Herstellung vonAlkansulfonsäurenund Alkansulfonylchloriden。

    公开(公告)号：EP0675106A1

    公开(公告)日：1995-10-04

    申请号：EP95104522.8

    申请日：1995-03-28

    Applicant: ELF ATOCHEM NORTH AMERICA, INC.

    Inventor： Schon, Steven Gabriel, Chem. Eng.

    IPC: C07C303/16 ,  C07C309/04 ,  C07C309/80

    CPC classification number: C07C303/16 ,  C07C309/04 ,  C07C309/80

    Abstract: A process is disclosed for the efficient production of high purity alkane sulfonic acid and/or alkane sulfonyl chloride product wherein a compound of the formula RSX, where X is hydrogen or -SR¹ and R and R¹ are alkyl radicals is continuously reacted with chlorine in aqueous hydrochloric acid to produce a turbulent evolution of hydrochloride gas, passing the reactants through stationary mixing elements to promote plug-flow, and separately withdrawing a product. Apparatus for this process is also disclosed.

    Abstract translation: 公开了用于有效生产高纯度烷烃磺酸和/或烷烃磺酰氯产物的方法，其中式为RSX的化合物，其中X为氢或-SR 1且R和R 1为烷基， 在盐酸水溶液中与氯气连续反应，产生湍流的盐酸气体，使反应物通过固定的混合元件，促进活塞流，并单独取出产品。 还公开了该方法的装置。

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