Method for detecting hydrogen peroxide employing triaryl- and
trihetarylmethane derivatives as redox indicators
    3.
    发明授权
    Method for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicators 失效
    使用三芳基和三芳基甲烷衍生物作为氧化还原指示剂检测过氧化氢的方法

    公开(公告)号:US4988616A

    公开(公告)日:1991-01-29

    申请号:US302072

    申请日:1989-01-24

    摘要: A method for detecting hydrogen peroxide wherein a sample is contacted with a peroxidase or a peroxidatively-active substance and a redox indicator of the following ##STR1## in which A and D independently of one another represent phenyl, pyridyl or imidazolyl,G represents O, CH.sub.2 or S,m represents the number zero or one, andX represents O, ##STR2## or --NR.sup.1 --NR.sup.2 -- R.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, cycloalkyl, aryl or aralkyl, or --NR.sup.1 R.sup.2 together represent a pyrrolidine, pyrazoline, piperidine, piperazine or morpholine radical andT denotes hydrogen, hydroxyl, alkyl, aryl, alkoxy, phenoxy, SO.sub.3 H, --COOH or ##STR3## whereby a color change is brought out if hydrogen peroxide is present.

    摘要翻译: 一种检测过氧化氢的方法,其中样品与过氧化物酶或过氧化物活性物质和下列“IMAGE”的氧化还原指示剂接触,其中A和D彼此独立地表示苯基,吡啶基或咪唑基,G表示O, CH2或S,m表示数个零或一个,X表示O,或者-NR1-NR2-R1和R2彼此独立地表示氢,烷基,环烷基,芳基或芳烷基,或-NR1R2一起 代表吡咯烷,吡唑啉,哌啶,哌嗪或吗啉基,T表示氢,羟基,烷基,芳基,烷氧基,苯氧基,SO 3 H,-COOH或,从而如果存在过氧化氢,则出现颜色变化。

    2-hydrazono-4,6-dinitrobenzthiazolones useful to form dyestuffs and as
color formers for detecting peroxide
    4.
    发明授权
    2-hydrazono-4,6-dinitrobenzthiazolones useful to form dyestuffs and as color formers for detecting peroxide 失效
    用于形成染料的2-亚肼基-4,6-二硝基苯并噻唑酮和用作检测过氧化物的成色剂

    公开(公告)号:US4962040A

    公开(公告)日:1990-10-09

    申请号:US392520

    申请日:1989-08-10

    摘要: 2-Hydrazono-4,6-dinitrobenzthiazolones of the formula ##STR1## in which X.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -hydroxyalkyl, C.sub.1 -C.sub.4 -sulphoalkyl or C.sub.1 -C.sub.4 -sulphatoalkyl, andX.sub.2 represents hydrogen or --SO.sub.2 X.sub.3, whereX.sub.3 may represent hydrogen, C.sub.1 -C.sub.8 -alkyl or optionally substituted aryl andX.sub.1 also represents a double bond between the cyclic nitrogen atom and the carbon atom 2 according to the formula II below: ##STR2## where X.sub.2 has the meaning specified under the above formula. These hydrazones may be employed in the preparation of azo dyestuffs and as color formers for detecting of biological substances, and in the determination of H.sub.2 O.sub.2.

    摘要翻译: 其中X1表示氢,C1-C4-烷基,C1-C4-羟基烷基,C1-C4-磺基烷基或C1-C4-硫酸烷基的式“IMAGE”的2-肼基-4,6-二硝基苯并噻唑酮,X 2表示氢或 -SO 2 X 3,其中X 3可以表示氢,C 1 -C 8 - 烷基或任选取代的芳基,X 1也表示环状氮原子和根据下式II的碳原子之间的双键:其中X 2具有含义 根据上述公式规定。 这些腙可用于制备偶氮染料和用作检测生物物质的成色剂,并用于测定H 2 O 2。

    Pure, in particular catalyst-free polyurethanes
    5.
    发明授权
    Pure, in particular catalyst-free polyurethanes 失效
    纯的,特别是无催化剂的聚氨酯

    公开(公告)号:US5374704A

    公开(公告)日:1994-12-20

    申请号:US166760

    申请日:1993-12-14

    摘要: The present invention is directed to pure polyurethanes which are biocompatible. These pure polyurethanes comprise the reaction product of:a) a pre-adduct containing NCO groups and comprising the reaction product ofi) a diisocyanate selected from the group consisting of aliphatic diisocyanates, cycloaliphatic diisocyanates, and mixtures thereof, withii) a macrodiol having a molecular weight of from 500 to 10,000 wherein said components i) and ii) reacted at temperatures of from 90.degree.-150.degree. C.; withb) a chain extender having a molecular weight of from 62 to 400 and being selected from the group consisting of aliphatic diols, cycloaliphatic diols, and mixtures thereof, and optionally,c) additional diisocyanate selected from the group consisting of aliphatic diisocyanates, cycloaliphatic diisocyanates, and mixtures thereof,wherein said component c), when added, is added either simultaneously with component b) or separately from component b), the quantities of components a)i), a)ii), and c) being such that the molar ratio of diisocyanate to macrodiol is from 1.5:1 to 22:1, and the reaction of components a) and b) and optionally component c) is conducted at temperatures of from 90.degree. to 230.degree. C., with the proviso that the reaction conditions are maintained until said polyurethane has a melt viscosity of at least 2500 mPa.s at 120.degree. C.

    摘要翻译: 本发明涉及生物相容的纯聚氨酯。 这些纯聚氨酯包括以下物质的反应产物:a)含有NCO基团的预加合物,其包含i)选自脂族二异氰酸酯,脂环族二异氰酸酯及其混合物的二异氰酸酯的反应产物,ii)具有 分子量为500至10,000,其中所述组分i)和ii)在90-150℃的温度下反应; 其中b)分子量为62至400的扩链剂,并且选自脂族二醇,脂环族二醇及其混合物,以及任选地,c)另外的二异氰酸酯,其选自脂族二异氰酸酯,脂环族脂族 二异氰酸酯及其混合物,其中所述组分c)在加入时与组分b)同时加入或与组分b)分开加入,组分a)i),a)ii)和c)的数量使得 二异氰酸酯与大分子二醇的摩尔比为1.5:1至22:1,组分a)和b)和任选组分c)的反应在90℃至230℃的温度下进行,条件是 维持反应条件,直到所述聚氨酯在120℃下的熔体粘度为至少2500mPa.s。

    Dye acceptor element for thermosublimation printing
    7.
    发明授权
    Dye acceptor element for thermosublimation printing 失效
    用于热敏印刷的染料受体元件

    公开(公告)号:US5273952A

    公开(公告)日:1993-12-28

    申请号:US825385

    申请日:1992-01-24

    摘要: A dye acceptor element for thermosublimation printing comprising a support and a dye acceptor layer consisting essentially of polycarbonate arranged on the support, the polycarbonate containing 30 to 95% by weight aromatic carbonate structural units corresponding to formula I[--O--diphen--O--CO--] (I)in which diphen is the residue of a diphenol containing 6 to 30 and preferably 12 to 24 carbon atoms, and 70 to 5% by weight aliphatic polyether carbonate structural units corresponding to formula II[--O--polyether--O--CO--] (II)in which polyether is the residue of an aliphatic polyether diol having a molecular weight Mn of 600 to 20,000, is distinguished by high color density and a minimal tendency towards adhesion.

    摘要翻译: 用于热收缩印刷的染料受体元件,其包含基本上由布置在载体上的聚碳酸酯组成的载体和染料受体层,所述聚碳酸酯包含对应于式I [-O-diphen-O-CO - ](I)其中二苯是含有6至30,优选12至24个碳原子的二酚的残基,和70至5重量%的对应于式II的脂族聚醚碳酸酯结构单元[-O-聚醚-O- 其中聚醚是分子量Mn为600至20,000的脂肪族聚醚二醇的残基的CO - ](II)的特征在于高的颜色密度和最小的粘附趋势。

    Disazo dyestuff sulphuric acid ester
    10.
    发明授权
    Disazo dyestuff sulphuric acid ester 失效
    双偶氮染料硫酸酯

    公开(公告)号:US4247460A

    公开(公告)日:1981-01-27

    申请号:US941978

    申请日:1978-09-13

    摘要: A dyestuff particularly for synthetic fibers of the formula ##STR1## wherein R.sub.1 ' denotes hydrogen, methyl, ethyl or cyclohexyl,R.sub.2 ' denotes chlorine, methoxy, methyl, ethoxy, ethyl, trifluoromethyl or acetylamino,R.sub.3 ' denotes hydrogen, methyl, methoxy, ethyl and ethoxy,R.sub.4 ' denotes hydrogen, methyl, methoxy, ethyl and ethoxy,R.sub.5 ' denotes hydrogen, methyl, methoxy, chlorine or phenyl,R.sub.6 ' denotes hydrogen or methyl,R.sub.7 ' denotes hydrogen, methyl, ethyl, 2-hydroxyethyl, 2-hydroxypropyl and 2-hydroxybutyl,m' denotes 0 or 1 andX denotes optionally branched C.sub.2 to C.sub.4 alkylene.

    摘要翻译: 特别是用于式(II)的合成纤维的染料,其中R1'表示氢,甲基,乙基或环己基,R2'表示氯,甲氧基,甲基,乙氧基,乙基,三氟甲基或乙酰氨基,R3'表示氢,甲基 ,甲氧基,乙基和乙氧基,R 5'表示氢,甲基,甲氧基,乙基和乙氧基,R5'表示氢,甲基,甲氧基,氯或苯基,R6'表示氢或甲基,R7'表示氢,甲基,乙基, 羟基乙基,2-羟丙基和2-羟基丁基,m'表示0或1,X表示任意支链的C 2至C 4亚烷基。