Method for allylating aromatic hydroxyl-containing compounds
    11.
    发明授权
    Method for allylating aromatic hydroxyl-containing compounds 失效
    烯丙基芳族含羟基化合物的方法

    公开(公告)号:US4740330A

    公开(公告)日:1988-04-26

    申请号:US903164

    申请日:1986-09-03

    CPC分类号: C08G59/02 C07C41/16

    摘要: The aromatic hydroxyl groups of aromatic hydroxyl-containing compounds can be allylated to greater than 95% conversion by reacting the alkali metal salt of said aromatic hydroxyl-containing compounds with an allyl halide such as allyl chloride in the presence of a polar aprotic solvent such as dimethylformamide. These compounds are useful in preparing epoxy resins containing a low halogen content.

    摘要翻译: 芳香族含羟基化合物的芳香族羟基可以通过使所述含芳族羟基化合物的碱金属盐与烯丙基卤化物如烯丙基氯在极性非质子溶剂如 二甲基甲酰胺。 这些化合物可用于制备含有低卤素含量的环氧树脂。

    Halogenated epoxy resins
    12.
    发明授权
    Halogenated epoxy resins 失效
    卤化环氧树脂

    公开(公告)号:US4727119A

    公开(公告)日:1988-02-23

    申请号:US907706

    申请日:1986-09-15

    摘要: Halogenated aromatic epoxy resins are disclosed wherein the halogen atoms are in the meta position with respect to a glycidyl ether group attached to an aromatic ring.Advanced epoxy resins are disclosed which result from the reaction of a relatively low molecular weight epoxy resin and a polyhydric phenol wherein at least one of the reactants contains at least one halogen atom which is meta with respect to a glycidyl ether group or a hydroxyl group attached to an aromatic ring. These advanced epoxy resins, when cured with a suitable curing agent, possess an improvement as compared to an advanced epoxy resin containing halogen atoms which are ortho with respect to a glycidyl ether group in at least one of thermal stability, glass transition temperature, relationship of viscosity to molecular weight and resistance to forming hydrolyzed halides in the presence of a refluxing solution of an alkali metal hydroxide.

    摘要翻译: 公开了卤化芳族环氧树脂,其中卤素原子相对于连接到芳族环上的缩水甘油醚基团处于间位。 公开了先进的环氧树脂,其由相对低分子量的环氧树脂和多元酚的反应产生,其中至少一种反应物含有至少一个相对于缩水甘油醚基团或羟基的元素的卤素原子 到一个芳香环。 这些先进的环氧树脂在用适当的固化剂固化时具有改进,与在热稳定性,玻璃化转变温度,玻璃化转变温度的关系中,相对于缩水甘油基醚基相邻的卤素原子的先进环氧树脂相比, 在碱金属氢氧化物的回流溶液存在下,粘度对分子量和耐水解卤化物的抗性。

    Dehydrohalogenation of (polyhaloalkyl) benzenes with support Lewis acid
catalysts
    15.
    发明授权
    Dehydrohalogenation of (polyhaloalkyl) benzenes with support Lewis acid catalysts 失效
    (多卤烷基)苯与支持路易斯酸催化剂的脱卤化氢

    公开(公告)号:US4205015A

    公开(公告)日:1980-05-27

    申请号:US906893

    申请日:1978-05-18

    IPC分类号: C07C17/25 C07C25/00

    摘要: A process for the dehydrohalogenation of a (polyhaloalkyl)benzene containing a benzylic halogen such as 1,3-dichloro-5-(2,4,4,4-tetrachlorobutyl)-benzene by contacting the (polyhaloalkyl)benzene with a Lewis acid such as AlCl.sub.3 deposited on an inert support such as silica gel or alumina under conditions sufficient to catalyze said dehydrohalogenation to form a (polyhaloalkenyl)benzene such as 3,5-dichloro-.alpha.-(2,2,2-trichloroethyl)styrene.

    摘要翻译: 通过使(多卤代烷基)苯与路易斯酸接触而使含有苄基卤如1,3-二氯-5-(2,4,4,4-四氯丁基) - 苯的(多卤烷基)苯脱卤化氢的方法, 作为AlCl 3在足以催化所述脱卤化氢以形成(多卤代烯)苯如3,5-二氯-α-(2,2,2-三氯乙基)苯乙烯的条件下沉积在惰性载体如硅胶或氧化铝上的条件下。

    Preparation of epoxy resins
    18.
    发明授权
    Preparation of epoxy resins 失效
    环氧树脂的制备

    公开(公告)号:US4499255A

    公开(公告)日:1985-02-12

    申请号:US523910

    申请日:1983-08-16

    IPC分类号: C08G59/06 C08G59/10

    CPC分类号: C08G59/10 C08G59/063

    摘要: Epoxy resins are prepared by reacting an excess of an epihalohydrin with a phenolic hydroxyl-containing compound in the presence of the incremental addition of a basic catalyst while removing water by codistilling with a solvent and epihalohydrin.

    摘要翻译: 环氧树脂通过使过量的表卤代醇与含酚羟基的化合物在增量添加碱性催化剂的存在下反应制备,同时通过用溶剂和表卤代醇进行分馏除去水。

    Halogenated advanced epoxy resins
    19.
    发明授权
    Halogenated advanced epoxy resins 失效
    卤化高级环氧树脂

    公开(公告)号:US4895755A

    公开(公告)日:1990-01-23

    申请号:US259449

    申请日:1988-10-14

    摘要: Advanced epoxy resins are disclosed which result from the reaction of a relatively low molecular weight epoxy resin and a polyhydric phenol wherein at least one of the reactants contains at least one halogen atom which is meta with respect to a glycidyl ether group or a hydroxyl group attached to an aromatic ring. These advanced epoxy resins, when cured with a suitable curing agent, possess an improvement as compared to an advanced epoxy resin containing halogen atoms which are ortho with respect to a glycidyl ether group in at least one of thermal stability, glass transition temperature, relationship of viscosity to molecular weight and resistance to forming hydrolyzed halides in the presence of a refluxing solution of an alkali metal hydroxide.

    摘要翻译: 公开了先进的环氧树脂,其由相对低分子量的环氧树脂和多元酚的反应产生,其中至少一种反应物含有至少一个相对于缩水甘油醚基团或羟基的元素的卤素原子 到一个芳香环。 这些先进的环氧树脂在用适当的固化剂固化时具有改进,与在热稳定性,玻璃化转变温度,玻璃化转变温度的关系中,相对于缩水甘油基醚基相邻的卤素原子的先进环氧树脂相比, 在碱金属氢氧化物的回流溶液存在下,粘度对分子量和耐水解卤化物的抗性。