Method for the production of glyceric acid
    23.
    发明授权
    Method for the production of glyceric acid 失效
    生产甘油酸的方法

    公开(公告)号:US06844467B2

    公开(公告)日:2005-01-18

    申请号:US10469929

    申请日:2002-03-05

    摘要: Glyceric acid compounds of the formula (I) R1R2C(OH)—CR3(OH)—COOX  (I) where R1, R2 and R3 are independently hydrogen, C1-12-alkyl, C6-12-aryl, C7-13-alkaryl or C7-13-aralkyl and X is hydrogen, an alkali metal, an alkaline earth metal/2 or NH4, are prepared by saponification of glycidic acid compounds of the formula (II) where Y is NH2 or OR4 in which R4 is C1-12-alkyl or C7-13-aralkyl, with ring-opening addition of water onto the epoxide ring. Preferably, Y is NH2 and the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III) R1R2C═CR3CN  (III) with hydrogen peroxide.

    摘要翻译: 式(I)的甘油酸化合物,其中R 1,R 2和R 3独立地是氢,C 1-12 - 烷基,C 6-12 - 芳基,C 7-13 - 烷芳基或C 7-13 - 芳烷基和X是氢,碱金属,碱土金属/ 2或NH 4是通过皂化式(II)的缩水甘油酸化合物制备的,其中Y是NH 2或OR 4,其中R 4是C1- 12位烷基或C 7-13芳烷基,在环氧化物环上开环加水。优选地,Y是NH 2,所用式(II)的缩水甘油酰胺是通过使式(III)的丙烯腈与式 与过氧化氢。

    Shadow mask with porous insulating layer and heavy metal layer
    24.
    发明授权
    Shadow mask with porous insulating layer and heavy metal layer 失效
    阴影面具多孔绝缘层和重金属层

    公开(公告)号:US06320306B1

    公开(公告)日:2001-11-20

    申请号:US09230361

    申请日:1999-05-12

    IPC分类号: H01J2980

    CPC分类号: H01J29/07 H01J2229/0777

    摘要: A shadow mask for color picture tubes has a cathode-side surface covered with a heat-insulating layer, an electron reflecting and absorbing layer, and a heat-emitting cover layer. Some of the electrons are reflected while others are absorbed in the cover layer and transformed to heat, but the heat does not act directly on the mask and is emitted into the interior of the tube. Local temperature differences which particularly occur with high contrast pictures and cause partial doming of the perforated mask are reduced.

    摘要翻译: 彩色显象管的荫罩具有被绝热层,电子反射和吸收层以及发热覆盖层覆盖的阴极侧表面。 一些电子被反射,而其他电子被吸收在覆盖层中并转变成热,但是热不直接作用在掩模上并被发射到管的内部。 在高对比度图像中特别发生的局部温度差异导致穿孔掩模的部分隆起减小。

    Benzimidazole-2-carboxanilides
    29.
    发明授权
    Benzimidazole-2-carboxanilides 失效
    苯并咪唑-2-甲酰苯胺

    公开(公告)号:US4981975A

    公开(公告)日:1991-01-01

    申请号:US392300

    申请日:1989-08-11

    摘要: Benzimidazolecarboxanilides of the formula (I) ##STR1## where R.sup.1 and R.sup.2 are each H, Cl, alkyl, alkoxy, unsubstitued or alkyl- or alkoxy-substituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 are each H, uninterrupted or --O-- interrupted alkyl or alkoxy, unsubstituted or alkyl- or alkoxy-substituted phenyl, phenylalkyl, phenoxy, phenylalkoxy hydroxyalkyl, hydroxyalkoxy, alkylcarbonylamino, alkanoyloxy, benzoylamino or benzoyloxy, X is alkylene, n is 1 or 2 and where--if n is 1--R.sup.5 is Cl, --OR.sup.6 or --NR.sup.7 R.sup.8 or--if n is 2--R.sup.5 is --O--R.sup.12 --O-- or --N(R.sup.9)--R.sup.13 --N(R.sup.9)-- where R.sup.6 is H, unsubstituted, OH-- or alkanoyloxy-substituted alkyl whose carbon chain may be interrupted by --O-- or --N(R.sup.9)--, cycloalkyl, alkenyl, phenylalkyl, phenoxyethyl, hydroxy alkyl, phenylhydroxyalkyl or glycidyl, R.sup.7 and R.sup.8 are H, alkyl, cycloalkyl, phenyl, naphthyl, alkenyl, phenylalkyl, hydroxyalkyl or --NR.sup.7 R.sup.8, a saturated 5- or 6- membered heterocycle, R.sup.9 is alkyl, cycloalkyl, alkenyl, phenyl, naphthyl or phenylalkyl, R.sup.12 is alkylene, alkenylene, cyclohexylene, oxaalkylene and R.sup.13 is alkylene, oxaalkylene, diphenylenemethane or dicyclohexylenemethane or --N(R.sup.9)--R.sup.13 --N(R.sup.9)-- is piperazinylene, are excellent light stabilizers for organic materials such as polymers and coating binders.

    摘要翻译: 式(I)的苯并咪唑化合物酰胺(I)其中R 1和R 2各自为H,Cl,烷基,烷氧基,未取代或烷基或烷氧基取代的苯基或苯基烷基,R 3和R 4各自为H,不间断或-O - 中间的烷基或烷氧基,未取代的或烷基 - 或烷氧基取代的苯基,苯基烷基,苯氧基,苯基烷氧基羟烷基,羟基烷氧基,烷基羰基氨基,烷酰氧基,苯甲酰氨基或苯甲酰氧基,X是亚烷基,n是1或2,其中如果n是1- R5是Cl,-OR6或-NR7R8,或 - 如果n是2-R5是-O-R12-O-或-N(R9)-R13-N(R9) - ,其中R6是H,未取代的OH-或烷酰氧基 其中碳链可以被-O-或-N(R 9) - ,环烷基,烯基,苯基烷基,苯氧基乙基,羟基烷基,苯基羟基烷基或缩水甘油基间隔的取代烷基,R7和R8是H,烷基,环烷基,苯基,萘基, 烯基,苯基烷基,羟基烷基或-NR 7 R 8,饱和的5-或6-元杂环,R 9为烷基,环烷基,烯基,苯基,萘基或苯基烷基,R 12为亚烷基, 烯,亚环己基,氧杂亚烷基和R 13是亚烷基,氧杂亚烷基,二苯基甲烷或二环己基甲烷或-N(R 9)-R 13 -N(R 9) - 是亚哌啶基,是有机材料如聚合物和涂料粘合剂的优异的光稳定剂。