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279 条记录 (耗时 0.016 秒)

    Process for preparing lower alkyl-halides
    42.
    发明公开
    Process for preparing lower alkyl-halides 失效
    烯丙基卤化物（Verfahren zur Herstellung von niedrigen）烷基卤化物。

    公开(公告)号：EP0446537A1

    公开(公告)日：1991-09-18

    申请号：EP90400667.3

    申请日：1990-03-13

    申请人： Bromine Compounds Ltd.

    发明人： Segall, Jeane ,  Shorr, Leonard M.

    IPC分类号： C07C19/02 ,  C07C17/16

    CPC分类号： C07C17/16 ,  C07C19/03

    摘要： A process for preparing lower alkyl-halides from the reaction of HX and the corresponding lower alcohol, wherein X represents a halogen atom, comprises continuously feeding HX and a lower alcohol to a reactor maintaining the instantaneous molar ratio of HX to the alcohol greater than 3, and continuously distilling off lower alkyl-halide and water from the reactor, continuously separating the lower alkyl-halide and water and recycling part of the said water to the distillation column to abate HX distillation from the reactor. High acid concentrations and temperatures are maintained to obtain high yields and rapid conversion of alkanols.

    摘要翻译： 从HX和相应的低级醇（其中X表示卤素原子）的反应制备低级烷基卤化物的方法包括将HX和低级醇连续地供入反应器，保持HX与醇的瞬时摩尔比大于3 并连续地从反应器中蒸馏除去低级烷基卤化物和水，连续分离低级烷基卤化物和水，并将部分所述水再循环到蒸馏塔中以从反应器中减少HX蒸馏。 保持高酸浓度和温度以获得高产率和链烷醇的快速转化。

    Process for the preparation of bromosubstituted aromatic esters of alfa,beta unsaturated acids
    43.
    发明公开
    Process for the preparation of bromosubstituted aromatic esters of alfa,beta unsaturated acids 失效
    一种用于α-β不饱和酸溴取代的芳族的酯的制备方法。

    公开(公告)号：EP0390042A1

    公开(公告)日：1990-10-03

    申请号：EP90105729.9

    申请日：1990-03-26

    申请人： Bromine Compounds Ltd.

    发明人： Fishler, Theodor-Morel ,  Peled, Michael, ,  Shorr, Leonard M.

    IPC分类号： C07C69/653 ,  C07C67/00

    CPC分类号： C07C69/653

    摘要： A process for the preparation of bromo-substituted aromatic esters of α,β-unsaturated acids of the formula
    wherein:
    n is 1 or 2,
    x = 6-n, and
    R and R′ are hydrogen or alkyl;
    comprises reacting a salt of an α,β-unsaturated acid and an alkali with a bromo-substituted benzyl halide in an inert substantially water-immiscible solvent and in the presence of a phase-transfer catalyst.

    摘要翻译： 一种用于阿尔法溴substituiertem芳族酯的制备方法，β-不饱和的式酸 worin：n是1或2，X = 6-n，以及R和R“是氢或烷基; 包括使一个alpha的盐，β-不饱和酸，并用在惰性基本上与水不混溶的溶剂中，在相转移催化剂的存在下，溴substituiertem苄基卤与碱。

    Halo-derivative addition compounds
    44.
    发明公开
    Halo-derivative addition compounds 失效
    Halogenierte Additionsverbindungen。

    公开(公告)号：EP0374819A1

    公开(公告)日：1990-06-27

    申请号：EP89123432.0

    申请日：1989-12-19

    申请人： Bromine Compounds Ltd.

    发明人： Shorr, Leonard M. ,  Ravey, Many

    IPC分类号： C07C211/27 ,  C09K21/10 ,  C08K5/00

    CPC分类号： C07C211/29 ,  C08K5/17

    摘要： A new class of compounds, is disclosed, defined by the formula:
    R′₂N(CH₂CH₂NR˝) y R
    where R, R′ and R˝ are equal or different and are
    wherein x is bromine or chlorine, n is an integer from 3 to 5 inclusive and y is an integer equal to or greater than 1.
    The compounds of the invention are useful fire retardant agents.

    摘要翻译： 公开了一类新的化合物，由下式定义：R min 2N（CH2CH2NR sec）yR其中R，Rmin和Rsec相同或不同，为，其中x为溴或氯，n为整数 从3到5，并且y是等于或大于1的整数。本发明的化合物是有用的阻燃剂。

    Flame retardant polymer compositions
    45.
    发明公开
    Flame retardant polymer compositions 失效
    阻燃聚合物组合物

    公开(公告)号：EP0247861A3

    公开(公告)日：1990-01-31

    申请号：EP87304706.2

    申请日：1987-05-27

    申请人： Bromine Compounds Ltd.

    发明人： Teuerstein, Avraham ,  Rumack, Michael ,  Bronfman, Gregory

    IPC分类号： C08F255/00 ,  C08F257/02

    CPC分类号： C08F255/00 ,  C08F257/02 ,  C08F220/22

    摘要： The present invention relates to flame retardant polymer compositions possessing non-linear structural configurations. According to the invention, a preformed backbone polymer, selected from polyolefins or styrenic polymers or copolymer thereof, is reacted with a flame retardant reagent selected from tribromophenoxy- or pentabromophenoxy ethyl ester or acrylic or methacrylic acid. The non-linear structural configuration is a result from the grafting or crosslinking of the ester with the polymer. The preferred amounts of the flame retardant reagent in the polymer compositions are between 10% to 50% by weight of the compositions. The flame retardant reagents are characterized by their thermostability at high temperatures. Optionally synergistic fire retardant additives such as antimony oxide are incorporated in the compositions. The flame retardant ethylene-­propylene rubber compositions were found to possess improved properties with a V-O rating, being completely absent of any blooming effect.

    Novel trisubstituted symmetrical triazines, their preparation and their use
    47.
    发明公开
    Novel trisubstituted symmetrical triazines, their preparation and their use 失效
    Trisubstituierte s-Triazine，ihre Herstellung und ihre Verwendung。

    公开(公告)号：EP0305196A2

    公开(公告)日：1989-03-01

    申请号：EP88307921.2

    申请日：1988-08-26

    申请人： Bromine Compounds Ltd.

    发明人： Herzlinger, Andrei ,  Shorr, Leonard M. ,  Antebi, Salomone ,  Fisher, Theodor-Morel ,  Utevsky, Lev ,  Scheinert, Yaakov

    IPC分类号： C07D251/34 ,  C08K5/34

    CPC分类号： C08K5/3492 ,  C07D251/34

    摘要： Triazine derivatives of the formula:

    [(NCO)₃R₁R₂R₃] n       (I)

    are described, wherein:
    R₁, R₂ and R₃ are the same or different and represent a ring perhalogenated benzyl and/or xylilydene, and which are bonded to the triazine ring on the N atoms when the ring is saturated, or on the O atoms when the ring is unsaturated, and n is an integer between 1 and 5. The invention is further directed to flame-retardant compositions and to plastic compositions which comprise a compound of formula I.

    摘要翻译： 其中：R1，R2和R3相同或不同，代表环状卤代苄基和/ 当环为饱和时，在N原子上，或当环为不饱和时在O原子上，n为1至5之间的整数。本发明还涉及阻燃组合物和塑料组合物，其包含 公式一