Acylation of pyrazole containing polymers
    21.
    发明授权
    Acylation of pyrazole containing polymers 失效
    含吡咯类聚合物的研究

    公开(公告)号:US3736297A

    公开(公告)日:1973-05-29

    申请号:US3736297D

    申请日:1972-01-05

    Applicant: LABOFINA SA

    Inventor: BRACKE W

    CPC classification number: C08G18/6415 C08G73/0616

    Abstract: POLYMER COMPOSITIONS HAVING A MOLECULAR WEIGHT ABOVE 1000 AND CONTAINING THE REPEATING UNITS, DISTRIBUTED AT RANDOM:

    -AR-CH2-(1-X-PYRAZOL-5-3-YLENE)-, -AR-CH2-(2-X-PYRAZOL-

    5,3-YLENE)-, -AR-(1-X-PYRAZOL-5,3-YLENE)-CH2-, AND -AR-

    (2-X-PYRAZOL-5-3-YLENE)-CH2-

    WHEREIN AR IS A DOVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC RADICALS, ALICYCLIC RADICALS, ALIPHATICALICYCLIC RADICALS, CARBOCYCLIC AND HETEROCYCLIC ARYL RADICALS AND X IS THE RADICAL OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ORGANIC AND INORGANIC ACIDS AND SUBSTITUTED SUCH AACIDS.

    Process for producing anhydrides of aromatic polycarboxylic acids
    26.
    发明授权
    Process for producing anhydrides of aromatic polycarboxylic acids 失效
    制备芳族多元羧酸酐的方法

    公开(公告)号:US3925425A

    公开(公告)日:1975-12-09

    申请号:US41027573

    申请日:1973-10-26

    Applicant: LABOFINA SA

    Abstract: A process for producing anhydrides of benzenepolycarboxylic acids by the vapor-phase oxidation of aromatic hydrocarbons selected from the group consisting of naphthalene, octahydroanthracene and polyalkylbenzenes containing at least two alkyl substituents in ortho position to one another and having the general formula

    WHEREIN R1 and R2 are alkyl radicals having a straight or branched chain and containing 1 to 6 carbon atoms and R3 and R4 are radicals selected from the group consisting of hydrogen and alkyl radicals containing 1 to 4 carbon atoms, the total number of carbon atoms of said polyalkylbenzenes being no higher than 18, said process comprising oxidizing said aromatic hydrocarbons at a temperature of between about 300* and 550*C and in the presence of a catalyst consisting of a refractory carrier and vanadium oxide, said catalyst prepared by impregnating said refractory carrier with an oxytrihalide of vanadium in which the halide is selected from the group consisting of chlorine and bromine, hydrolyzing said oxytrihalide and vanadium and then calcining said catalyst.

    Abstract translation: 通过气相氧化选自萘,八氢蒽和含有至少两个彼此邻位的烷基取代基并具有通式为WHEREIN R1和R2的萘,八氢蒽和多烷基苯的芳族烃的酸酐的制备方法 具有直链或支链并且含有1至6个碳原子的烷基,R 3和R 4是选自氢和含有1至4个碳原子的烷基的基团,所述聚烷基苯的总碳原子数不高 所述方法包括在约300-550℃的温度下和在由耐火材料载体和氧化钒组成的催化剂存在下氧化所述芳族烃,所述催化剂通过用氧化三氮鎓浸渍所述耐火载体而制备 其中卤化物选自由以下组成的组的钒 氯和溴,然后水解所述三氧化二铁和钒,然后煅烧所述催化剂。

    Oxidation of diethylbenzenes
    27.
    发明授权
    Oxidation of diethylbenzenes 失效
    二乙基苯的氧化

    公开(公告)号:US3923909A

    公开(公告)日:1975-12-02

    申请号:US33408473

    申请日:1973-02-20

    Applicant: LABOFINA SA

    Abstract: A process for producing ethylphenols which comprises (1) the oxidation of diethylbenzene by passing a molecular oxygen containing gas into contact with said diethylbenzene at a temperature between 100* and 180*C to convert 5 to 30 percent of said diethylbenzene into diethylbenzene hydroperoxide, (2) withdrawing the reaction mixture, separating the unconverted diethylbenzene therefrom to obtain a hydroperoxide concentrate containing at least 40 percent of diethylbenzene hydroperoxide, (3) mixing the diethylbenzene hydroperoxide concentrate with a solvent selected from the group consisting of low molecular weight aliphatic alcohols, ketones and mixtures thereof, (4) decomposing said hydroperoxide by intimate contact with a strong acid which is used in an amount of between 0.05 and 5 percent of the weight of total reaction mixture, and neutralizing the resulting mixture, and (5) distilling the neutralized mixture to recover a bottom fraction containing ethylphenol and a top fraction containing acetaldehyde.

    Abstract translation: 一种生产乙基苯的方法,其包括(1)通过使含分子氧的气体与所述二乙基苯在100至180℃之间的温度下进行氧化来将二乙基苯氧化以将5至30%的所述二乙基苯转化为二乙基苯氢过氧化物( 2)取出反应混合物,从其中分离未转化的二乙基苯,得到含有至少40%二乙基苯氢过氧化物的氢过氧化物浓缩物,(3)将二乙基苯氢过氧化物浓缩物与选自低分子量脂族醇,酮 (4)通过与强酸反应来分解所述氢过氧化物,所述强酸的用量为总反应混合物重量的0.05-5%,中和所得混合物,和(5)蒸馏中和的 混合物以回收含有乙基苯酚和顶部馏分的底部馏分 含乙醛。

    Production of abs resins
    28.
    发明授权
    Production of abs resins 失效
    ABS树脂的生产

    公开(公告)号:US3912794A

    公开(公告)日:1975-10-14

    申请号:US41524073

    申请日:1973-11-12

    Applicant: LABOFINA SA

    CPC classification number: C08F279/04

    Abstract: A process for the production of ABS type resins consisting of styrenic compound acrylonitrile compound copolymer and polybutadiene rubber on which said styrenic compound and acrylonitrile compound are grafted, said process comprising carrying out a mass-copolymerization of a styrenic compound and an acrylonitrile compound in the presence of polybutadiene rubber, at a temperature of between 75* and 125*C, up to formation of a mass copolymer having a viscosity of between about 5,000 and 100,000 centipoises when measured at 65*C and in which the continuous phase is a styrenic compound acrylonitrile compound copolymer which contains styrenic and acrylonitrile compounds, adding to said mass copolymer an aqueous dispersion of a suspending agent and then a surfactive agent, and thereafter carrying out a suspension polymerization at a temperature of between 75* and 150*C.

    A process for the production of benzene carboxylic acids from ethyl substituted benzens
    30.
    发明授权
    A process for the production of benzene carboxylic acids from ethyl substituted benzens 失效
    从乙基取代苄酸生产苯甲酸羧酸的方法

    公开(公告)号:US3852343A

    公开(公告)日:1974-12-03

    申请号:US37479273

    申请日:1973-06-26

    Applicant: LABOFINA SA

    CPC classification number: C07C51/265

    Abstract: A process for oxidizing ethyl-substituted benzenes to benzene carboxylic acids in a solvent mixture consisting of acetic acid and water using a cobalt carboxylate and manganese carboxylate catalyst and maintaining the concentration of unreacted ethylsubstituted benzene in reaction mixture at a value of at least 5 percent by volume on a solvent-free basis.

    Abstract translation: 使用羧酸钴和羧酸羧酸钴催化剂将乙基取代的苯氧化成由乙酸和水组成的溶剂混合物中的苯羧酸的方法,并将反应混合物中未反应的乙基取代的苯的浓度保持在至少5 以无溶剂为基础的体积百分数。

Patent Agency Ranking