Diazotype materials which can be developed by heat and contain an
activator precursor having 2-carboxy carboxamide group releasing a
strong base during heating
    1.
    发明授权
    Diazotype materials which can be developed by heat and contain an activator precursor having 2-carboxy carboxamide group releasing a strong base during heating 失效
    可以通过加热显影并含有具有2-羧基羧酰胺基团的活化剂前体在加热过程中释放强碱的二嗪型材料

    公开(公告)号:US4584256A

    公开(公告)日:1986-04-22

    申请号:US674347

    申请日:1984-11-21

    CPC分类号: G03C1/615 G03C1/61

    摘要: The invention relates to new diazotype materials of which the sensitive layer contains, as a base generator, a compound comprising a basic part and an acid part, the acid part being a 2-carboxycarboxamide group and the basic part consisting of an alkali metal cation or alkaline earth metal cation or a tetraalkylammonium cation.These diazotype materials develop rapidly and possess an excellent resistance to ageing.

    摘要翻译: PCT No.PCT / FR81 / 00151 Sec。 371日期1982年7月30日 102(e)1982年7月30日PCT PCT 1991年11月19日PCT公布。 出版物WO82 / 01944 日本1982年6月10日。本发明涉及新的二氮类材料,其敏感层含有作为碱产生剂的包含碱性部分和酸性部分的化合物,酸部分为2-羧基羧酰胺基团和碱性部分 由碱金属阳离子或碱土金属阳离子或四烷基铵阳离子组成。 这些二嗪类材料发展迅速,具有优异的耐老化性。

    Preparation of trialkoxybenzaldehydes
    4.
    发明授权
    Preparation of trialkoxybenzaldehydes 失效
    三烷氧基苯甲醛的制备

    公开(公告)号:US4933498A

    公开(公告)日:1990-06-12

    申请号:US391410

    申请日:1989-08-07

    申请人: Michel Crochemore

    发明人: Michel Crochemore

    摘要: 3,4,5-Trialkoxybenzaldehydes, notably 3,4,5-triamethoxybenzaldehyde, are prepared by hydrolyzing 5-bromo-4-hydroxy-3-methoxybenzaldehyde with an alkali metal hydroxide, in water and in the presence of a copper catalyst, and then directly sequentially (i.e., without separating any reaction intermediates) etherifying the 4,5-dihydroxy-3-methoxybenzaldehyde thus produced with a lower alkyl halide, in an aqueous medium and at a pH maintained at a value of from 6 to 12, optionally in the presence of a catalyst.

    摘要翻译: 通过在水中和在铜催化剂存在下,用碱金属氢氧化物水解5-溴-4-羟基-3-甲氧基苯甲醛,制备3,4,5-三烷氧基苯甲醛,特别是3,4,5-三甲氧基苯甲醛,以及 然后直接顺序地(即,不分离任何反应中间体)将由此产生的4,5-二羟基-3-甲氧基苯甲醛用低级烷基卤化物在水性介质中并保持在6至12的pH下,任选地 在催化剂存在下。

    Novel n[meth)allyloxy(meth)allylphenyl]maleimides and thermosetting
imido copolymers prepared therefrom
    5.
    发明授权
    Novel n[meth)allyloxy(meth)allylphenyl]maleimides and thermosetting imido copolymers prepared therefrom 失效
    新型n [甲基]烯丙氧基(甲基)烯丙基苯基]马来酰亚胺和由其制备的热固性酰亚胺共聚物

    公开(公告)号:US4883883A

    公开(公告)日:1989-11-28

    申请号:US134088

    申请日:1987-12-17

    CPC分类号: C07D207/452

    摘要: Novel N-[(meth)allyloxy-mono-/di(meth)allylphenyl]maleimides, in admixture with at least one N-[(meth)allyloxyphenyl]maleimide, are reacted with at least one bismaleimide, and optionally a hydroxylated organosilicon compound, in the presence of an imidazole compound, to obtain mechanically improved thermosetting imido copolymerizates well adapted for the production of, e.g., coatings, adhesive bondings, laminates and composites.

    摘要翻译: 与至少一种N - [(甲基)丙烯酰氧基苯基]马来酰亚胺混合的新型N - [(甲基)烯丙氧基 - 单 - /(甲基)烯丙基苯基]马来酰亚胺与至少一种双马来酰亚胺和任选的羟基化有机硅化合物 在咪唑化合物的存在下,得到机械改进的热稳定性亚氨基共聚物,其很好地适用于生产例如涂料,粘合剂,层压材料和复合材料。

    Preparation of cyclic ketones
    7.
    发明授权
    Preparation of cyclic ketones 失效
    环酮的制备

    公开(公告)号:US5856581A

    公开(公告)日:1999-01-05

    申请号:US251112

    申请日:1994-05-31

    CPC分类号: C07C45/48

    摘要: Cyclic ketones, notably cyclopentanone and 2,2-dimethylcyclopentanone, are simply, economically and efficiently prepared, even on an industrial scale, by decarboxylating/cyclizing a dicarboxylic acid, in liquid phase, in the presence of a catalytically effective amount of a metal or compound thereof selected from among boron, aluminum, gallium, indium, thallium, tin, antimony, bismuth, molybdenum, rubidium, cesium and vanadium.

    摘要翻译: 环状酮,特别是环戊酮和2,2-二甲基环戊酮,在催化有效量的金属存在下,甚至在工业规模下,通过在液相中脱羧/环化二羧酸来简单,经济和有效地制备,或 选自硼,铝,镓,铟,铊,锡,锑,铋,钼,铷,铯和钒的化合物。

    Esterification of carboxylic acid salts
    8.
    发明授权
    Esterification of carboxylic acid salts 失效
    羧酸盐酯化

    公开(公告)号:US5777151A

    公开(公告)日:1998-07-07

    申请号:US950233

    申请日:1992-09-24

    申请人: Michel Crochemore

    发明人: Michel Crochemore

    CPC分类号: C07C67/11 C07D213/803

    摘要: Mono- or polycarboxylic acid esters are prepared by reacting a salt of such carboxylic acid with an organic halocompound, e.g., a (cyclo)alkyl, (cyclo)alkenyl, aryl or aralkyl halide, in an aqueous reaction medium, in the presence of a catalytically effective amount of a phase transfer catalyst, for example an onium salt.

    摘要翻译: 通过使这种羧酸的盐与有机卤代化合物例如(环)烷基,(环)烯基,芳基或芳烷基卤化物)在水性反应介质中,在存在下进行反应来制备单或多元羧酸酯 催化有效量的相转移催化剂,例如鎓盐。

    Vanillic acid ester perfuming agents
    9.
    发明授权
    Vanillic acid ester perfuming agents 失效
    香草酸香精剂

    公开(公告)号:US5686406A

    公开(公告)日:1997-11-11

    申请号:US494733

    申请日:1995-06-26

    IPC分类号: C07C69/92 C11B9/00 A61K7/46

    CPC分类号: C11B9/0061 C07C69/92

    摘要: The vanillic acid esters, for example, methyl or ethyl vanillate, are effective perfuming or olfactory agents for a wide variety of compositions, substrates and articles, whether perfumes, skin- and haircare products, cosmetics, shaving preparations, toiletries, deodorants and antiperspirants, room deodorizers, etc.

    摘要翻译: 香草酸酯,例如甲基或乙基香草酸酯,是用于各种组合物,底物和制品(无论是香料,皮肤和护发产品,化妆品,剃须制品,化妆品,除臭剂和止汗剂)的有效的加香或嗅觉剂, 室内除臭剂等

    Preparation of cyclic ketones
    10.
    发明授权
    Preparation of cyclic ketones 失效
    环酮的制备

    公开(公告)号:US5600013A

    公开(公告)日:1997-02-04

    申请号:US539041

    申请日:1995-10-04

    IPC分类号: C07C45/48 C07C45/45

    CPC分类号: C07C45/48

    摘要: Cyclic ketones, notably cyclopentanone and 2,2-dimethylcyclopentanone, are simply, economically and efficiently prepared, even on an industrial scale, by decarboxylating/cyclizing a dicarboxylic acid, in liquid phase, in the presence of a catalytically effective amount of a condensed or uncondensed neutral phosphate.

    摘要翻译: 环状酮,特别是环戊酮和2,2-二甲基环戊酮,即使在工业规模上也是简单,经济,有效地制备,通过在液相中,在催化有效量的缩合或缩合的存在下,使二羧酸脱羧/环化 无中性磷酸盐。