Diacylated dipercarboxylic acid as bleaching agent
    81.
    发明授权
    Diacylated dipercarboxylic acid as bleaching agent 失效
    二酰基二过羧酸作为漂白剂

    公开(公告)号:US5415668A

    公开(公告)日:1995-05-16

    申请号:US946343

    申请日:1992-11-06

    摘要: ##STR1## The invention concerns diacylated dipercarboxylic acids according to general formula (I), in which R
    1 and R
    2 are hydrocarbon groups having from 1 to 15 carbon atoms, and X is electron attracting by being an optionally substituted phenyl group, an optionally substituted heterocycle in which the hetero atom is positioned so that from 2 to 4 carbon atoms are present between the hetero atom and each one of the carbonyl carbons of the diperacid, or by comprising at least one electron attracting functional group positioned so that a carbon chain having from 2 to 4 carbon atoms is present between said electron attracting group and each one of the carbonyl carbons of the diperacid, wherein the electron attracting group contains oxygen, sulfur, nitrogen, phosphorus, halogen, optionally substituted phenyl, or at least two conjugated double bonds, R
    1 and R
    2 are hydrocarbon groups having from 1 to 15 carbon atoms, except compounds in which X consists of a phenyl group having the carbonyl carbons in 1,4 position and both of R
    1 and R
    2 are acetyl or both of R
    1 and R
    2 are nonyl. The invention also concerns a method of their preparation, a composition useful for bleaching and a method of bleaching.

    摘要翻译: PCT No.PCT / SE91 / 00291 Sec。 371日期:1992年11月6日 102(e)日期1992年11月6日PCT 1991年4月24日PCT PCT。 第WO91 / 17143号公报 (I)本发明涉及根据通式(I)的二酰化二元羧酸,其中R 1和R 2是具有1至15个碳原子的烃基,X是通过 任选取代的苯基,任选取代的杂环,其中所述杂原子被定位使得2至4个碳原子存在于所述杂原子和所述二酸的每个羰基碳之间,或通过包含至少一个吸电子 官能团定位使得具有2至4个碳原子的碳链存在于所述吸电子基团和二酸的每个羰基碳之间,其中电子吸引基团含有氧,硫,氮,磷,卤素,任选地 取代的苯基或至少两个共轭双键,R 1和R 2是具有1至15个碳原子的烃基,除了其中X由苯基 具有1,4位的羰基碳原子,R1和R2两者都是乙酰基,R1和R2都是壬基。 本发明还涉及它们的制备方法,可用于漂白的组合物和漂白方法。

    Amine oxide process and composition
    85.
    发明授权
    Amine oxide process and composition 失效
    氧化胺工艺及组成

    公开(公告)号:US4970340A

    公开(公告)日:1990-11-13

    申请号:US821793

    申请日:1986-01-23

    申请人: Kim R. Smith

    发明人: Kim R. Smith

    摘要: A highly concentrated aqueous solution of a di-C.sub.6-20 alkyl methylamine oxide containing at least 50 weight percent of the amine oxide can be made without gel formation by reacting at least 40 weight percent aqueous hydrogen peroxide with a di-C.sub.6-20 alkyl methyl or ethylamine. These concentrated solutions offer large freight savings in shipping the amine oxides to remote locations.

    摘要翻译: 含有至少50重量%氧化胺的二-C6-20烷基甲基胺氧化物的高度浓缩水溶液可以通过使至少40重量%的过氧化氢水溶液与二-C 6〜20烷基甲基 或乙胺。 这些集中的解决方案可以节省大量的运输氧化胺到偏远地区。

    Storage stable aryl nitrone compositions
    87.
    发明授权
    Storage stable aryl nitrone compositions 失效
    储存稳定的芳基硝酮组合物

    公开(公告)号:US4661433A

    公开(公告)日:1987-04-28

    申请号:US687681

    申请日:1984-12-31

    申请人: Gary C. Davis

    发明人: Gary C. Davis

    CPC分类号: C07C291/02 G03F7/091

    摘要: Aryl nitrones, of the type used in contrast enhancement photolithography techniques, are stabilized by adding thereto a drying agent such as molecular sieve, silica gel or an alkylalkoxysilane. The resulting compositions are substantially storage stable.

    摘要翻译: 用于对比度增强光刻技术的类型的芳基硝酮通过向其中加入干燥剂如分子筛,硅胶或烷基烷氧基硅烷来稳定化。 所得组合物基本上储存稳定。

    Process for producing mixed tertiary amine oxide
    88.
    发明授权
    Process for producing mixed tertiary amine oxide 失效
    混合叔胺氧化物的制备方法

    公开(公告)号:US4650904A

    公开(公告)日:1987-03-17

    申请号:US676807

    申请日:1984-11-30

    申请人: Koichi Fujita

    发明人: Koichi Fujita

    CPC分类号: C07C291/04

    摘要: A process for producing an aqueous solution of a straight-chain alkyl tertiary amine oxide and a branched-chain alkyl tertiary amine oxide by reacting aliphatic tertiary amines with an aqueous solution of hydrogen peroxide is disclosed. In this process, a tertiary amine which mainly consists of a branched-chain tertiary amine is first reacted with excess hydrogen peroxide, and then, a straight-chain alkyl tertiary amine which is substantially free of a branched-chain alkyl group is added to the reaction mixture for permitting further reaction with hydrogen peroxide. The process achieves a high overall conversion of the starting amines, and the final product has an extremely low level of residual hydrogen peroxide.

    摘要翻译: 公开了通过使脂族叔胺与过氧化氢水溶液反应制备直链烷基叔胺氧化物和支链烷基叔胺氧化物的水溶液的方法。 在该方法中,主要由支链叔胺组成的叔胺首先与过量的过氧化氢反应,然后将基本上不含支链烷基的直链烷基叔胺加入到 反应混合物,以进一步与过氧化氢反应。 该方法实现了起始胺的高总转化率,并且最终产物具有极低水平的残余过氧化氢。

    Process for producing amineoxide
    90.
    发明授权
    Process for producing amineoxide 失效
    生产氧化胺的方法

    公开(公告)号:US4247480A

    公开(公告)日:1981-01-27

    申请号:US65338

    申请日:1979-08-09

    CPC分类号: C07C291/04

    摘要: An amine oxide is produced by oxidizing a tertiary amine having the formula ##STR1## wherein R.sub.1 and R.sub.2 respectively represent methyl or ethyl group; and R.sub.3 represent a C.sub.8 -C.sub.14 alkyl or alkenyl group in the presence of carbon dioxide and in the presence or absence of an improver selected from the group consisting of ethylenediaminetetraacetic acid, its salts, stanates, polyphosphates, salts of hydroxycaboxylic acid and salts of polycarboxylic acid.

    摘要翻译: 通过氧化具有式“IMAGE”的叔胺制备氧化胺,其中R1和R2分别表示甲基或乙基; 并且R 3在二氧化碳的存在下和在存在或不存在选自乙二胺四乙酸,其盐,甾烷酸酯,多磷酸盐,羟基羧酸的盐和多元羧酸盐的存在或不存在的情况下代表C 8 -C 14烷基或烯基 酸。