Process and catalyst for the preparation of ketones and/or aldehydes from olefines
    41.
    发明授权
    Process and catalyst for the preparation of ketones and/or aldehydes from olefines 失效
    用于从烯烃制备酮和/或醛的方法和催化剂

    公开(公告)号:US3925481A

    公开(公告)日:1975-12-09

    申请号:US27342872

    申请日:1972-07-20

    Applicant: STAMICARBON

    Inventor: GEUS JOHN W

    Abstract: There is provided a process for the production of ketones and a catalyst for increasing the proportion of ketone produced by the process, wherein an olefine, molecular oxygen and steam are passed over a catalyst containing discrete particles of tin oxide, a majority of such particles being of a size of at most 50 A, homogeneously distributed over a particulate supporting material, the tin oxide particles being covered by a substantially monomolecular layer of molybdenum oxide.

    Abstract translation: 提供了一种制备酮的方法和一种用于增加由该方法生产的酮的比例的催化剂,其中烯烃,分子氧和蒸汽通过含有离散的氧化锡颗粒的催化剂,大部分这样的颗粒是 尺寸为至多50的均匀分布在颗粒状支撑材料上的氧化锡颗粒被氧化钼的基本单分子层覆盖。

    Insoluble carrier-bound enzymes
    42.
    发明授权
    Insoluble carrier-bound enzymes 失效
    不溶性载体结合酶

    公开(公告)号:US3919048A

    公开(公告)日:1975-11-11

    申请号:US45923674

    申请日:1974-04-08

    Applicant: STAMICARBON

    CPC classification number: C12N11/02

    Abstract: Insoluble enzyme complexes are prepared by chemically bonding enzymes to natural sponge. The enzyme can be either directly bonded to the sponge, or the sponge can be first modified with an appropriate chemical reagent, such as a cyclic dicarboxylic acid anhydride, prior to chemical bonding with the enzyme.

    Abstract translation: 通过将酶化学键合到天然海绵中制备不溶性酶复合物。 酶可以直接结合到海绵上,或者在与酶化学键合之前,可以用适当的化学试剂如环状二羧酸酐修饰海绵。

    Process for lowering the viscosity of a solution of a living polymer
    43.
    发明授权
    Process for lowering the viscosity of a solution of a living polymer 失效
    降低活性聚合物溶液粘度的方法

    公开(公告)号:US3911054A

    公开(公告)日:1975-10-07

    申请号:US29305572

    申请日:1972-09-28

    Applicant: STAMICARBON

    CPC classification number: C08F297/042 C08F4/12 C08F36/04 C08F4/488

    Abstract: Polyfunctional Lewis bases such as N,N,N'',N''-tetramethyl-1,2diaminoethane are used to lower the viscosity of a solution of a living polymer, especially during the preparation of a living polymer using a polyfunctional anionic initiator according to the process disclosed. Homopolymers and copolymers may be produced; the process is particularly suited for the preparation of A-B-A block copolymers the Lewis base being added after at least 50 percent of the first-formed polymer block is completed.

    Abstract translation: 多官能路易斯碱如N,N,N',N'-四甲基-1,2-二氨基乙烷用于降低活性聚合物溶液的粘度,特别是在使用多官能阴离子引发剂制备活性聚合物时 涉及到公开的过程。 可以生产均聚物和共聚物; 该方法特别适用于制备A-B-A嵌段共聚物,其中在初始形成的聚合物嵌段的至少50%完成后加入路易斯碱。

    Process for the preparation of lysine involving 1-ureido-4-cyanovaleramide and 1-ureido-5-aminocapronamide intermediaries
    44.
    发明授权
    Process for the preparation of lysine involving 1-ureido-4-cyanovaleramide and 1-ureido-5-aminocapronamide intermediaries 失效
    涉及1-脲基-4-氰基戊酰胺和1-脲基-5-氨基己酰胺中间体的赖氨酸制备方法

    公开(公告)号:US3911001A

    公开(公告)日:1975-10-07

    申请号:US34851973

    申请日:1973-04-06

    Applicant: STAMICARBON

    CPC classification number: C07C275/16 C07D233/76

    Abstract: A process is disclosed for the preparation of lysine and lysine compounds wherein a mixture of 5-(3-cyanopropyl)-hydantoin and 1ureido-4-cyanovaleramide is obtained and hydrogenated in the presence of a catalyst to a mixture of 5-(4-aminobutyl)-hydantoin and 1-ureido-5-aminocapronamide, which in turn is hydrolyzed to lysine or a lysine compound.

    Abstract translation: 公开了制备赖氨酸和赖氨酸化合物的方法,其中得到5-(3-氰基丙基) - 乙内酰脲和1-脲基-4-氰基戊酰胺的混合物,并在催化剂存在下氢化为5-( 4-氨基丁基) - 乙内酰脲和1-脲基-5-氨基己酰胺,其又被水解成赖氨酸或赖氨酸化合物。

    Process for preparing granular powdered polyamide
    45.
    发明授权
    Process for preparing granular powdered polyamide 失效
    颗粒粉末聚酰胺的制备方法

    公开(公告)号:US3909498A

    公开(公告)日:1975-09-30

    申请号:US37893873

    申请日:1973-07-13

    Applicant: STAMICARBON

    CPC classification number: C08G69/18

    Abstract: A process for the preparation of polyamides in granular or powdered form is described, said process comprising heating a lactam or mixture of lactams in a suitable inert solvent at a temperature below the melting point of the polyamide to be formed, in the presence of a conventional anionic catalyst and a conventional promotor. The disclosure points out that the presence during polymerisation of one or more compounds from the group of alcohols, carboxylic esters and inert salts, dissolved or dispersed in the solvent, prevents the formation of lumps and the adhesion of the polyamide to the reactor walls.

    Abstract translation: 描述了制备颗粒状或粉末状聚酰胺的方法,所述方法包括在常规的聚酰胺的存在下,在低于待形成的聚酰胺的熔点的温度下,在合适的惰性溶剂中加热内酰胺或内酰胺的混合物 阴离子催化剂和常规的促进剂。 本公开指出,溶解或分散在溶剂中的一种或多种来自醇,羧酸酯和惰性盐的化合物聚合期间的存在防止了团块的形成和聚酰胺粘附到反应器壁上。

    Preparation of transparent and thermostable copolymers
    46.
    发明授权
    Preparation of transparent and thermostable copolymers 失效
    透明和热稳定共聚物的制备

    公开(公告)号:US3884890A

    公开(公告)日:1975-05-20

    申请号:US18090171

    申请日:1971-09-15

    Applicant: STAMICARBON

    CPC classification number: C08F214/06 C08F10/00 C08F4/28

    Abstract: Low pressure polymerization of a vinyl halide with 4-methyl pentene-1 is disclosed. The reaction is conducted in an oxygenfree atmosphere at a pressure not in excess of 150 atmospheres absolute at a temperature of from -5* to +80* C., optionally in the presence of a polymerization initiator. The resulting product is transparent, colorless, thermostable and has a melt index of not more than 100.

    Abstract translation: 公开了乙烯基卤化物与4-甲基戊烯-1的低压聚合。 反应在-5℃至+ 80℃的温度下,在无氧气氛下,绝对压力不超过150个大气压,任选在聚合引发剂存在下进行。 所得产物是透明的,无色的,热稳定的,熔体指数不超过100。

    Process for stabilizing polymers
    47.
    发明授权
    Process for stabilizing polymers 失效
    稳定聚合物的方法

    公开(公告)号:US3880803A

    公开(公告)日:1975-04-29

    申请号:US31363672

    申请日:1972-12-11

    Applicant: STAMICARBON

    Inventor: KEIZER SIETSKE

    CPC classification number: C08J3/203

    Abstract: A process for stabilizing conventional particulate thermoplastic organic polymers by admixing conventional stabilizers for the polymers is disclosed, wherein the resulting polymer-stabilizing mixture is homogeneous and exhibits good polymer stability. The stabilizer has a melting point at least 1* C less than the temperature at which the polymer agglomerates and/or sinters and/or decomposes. The stabilizer is in the non-liquid state and preferably has a viscosity of at least 50 poise, measured under the conditions at which the stabilizer is added to the polymer. The polymer is heated to a temperature above the melting point of the stabilizer, and lower than the agglomeration and/or decomposition and/or sintering temperature of the polymer. The stabilizer is admixed with the polymer while the polymer is maintained at about the aforesaid temperature, and while the stabilizer is at a temperature at least about 1* C lower than the stabilizer melting point temperature. The mixing is preferably at a shear rate no greater than 1000 sec 1. The resulting polymers may be used in conventional applications for such polymers, and will exhibit improved stability against heat, light and/or oxygen.

    Abstract translation: 公开了通过混合聚合物的常规稳定剂来稳定常规颗粒状热塑性有机聚合物的方法,其中所得聚合物稳定混合物是均匀的并且表现出良好的聚合物稳定性。 稳定剂的熔点比聚合物凝聚和/或烧结和/或分解的温度低至少1℃。 稳定剂处于非液体状态,优选在稳定剂加入聚合物的条件下测定的至少50泊的粘度。 将聚合物加热至高于稳定剂熔点的温度,并低于聚合物的聚集和/或分解和/或烧结温度。 稳定剂与聚合物混合,同时聚合物保持在约上述温度,而稳定剂的温度比稳定剂熔点温度低至少约1℃。 混合优选为不大于1000sec -1的剪切速率。

    Process for the preparation of cyclopentadienes
    48.
    发明授权
    Process for the preparation of cyclopentadienes 失效
    制备环戊二烯的方法

    公开(公告)号:US3862253A

    公开(公告)日:1975-01-21

    申请号:US44554774

    申请日:1974-02-25

    Applicant: STAMICARBON

    CPC classification number: C07C4/22 C07C2601/10 C07C13/15

    Abstract: An improved process for the thermal decomposition of dicyclopentadiene and methyl-substituted dicyclopentadienes into cyclopentadienes and methyl-cyclopentadienes is described, wherein the conversion is carried out at particularly high yields and in the substantial absence of reactor-fouling problems by maintaining the molecular oxygen content in the gaseous reaction mixture below about 10 parts per million and also maintaining reactor conditions at a partial dicyclopentadiene pressure below the vapor pressure of the dicyclopentadiene under conversion at the prevailing temperature employed in the process.

    Abstract translation: 描述了将二环戊二烯和甲基取代的二环戊二烯的热分解成环戊二烯和甲基 - 环戊二烯的改进方法,其中转化以特别高的产率进行,并且基本上没有反应器结垢问题,通过保持分子氧含量 气态反应混合物低于约10ppm,并且在本方法中采用的主要温度下,在二环戊二烯的蒸气压下,将部分二环戊二烯压力保持在反应器条件下。

    Process of making a milk coagulating enzyme preparation
    49.
    发明授权
    Process of making a milk coagulating enzyme preparation 失效
    制备奶粉凝固酶的制备方法

    公开(公告)号:US3857969A

    公开(公告)日:1974-12-31

    申请号:US43863074

    申请日:1974-02-01

    Applicant: STAMICARBON

    Inventor: WIKEN T BAKKER G

    CPC classification number: A23C19/0326 C12N9/58 Y10S435/931

    Abstract: A process for producing an enzyme preparation capable of coagulating milk by cultivating a fungi of the group Mucor lamprosporus or a natural or synthetic variant or mutant thereof in a culture medium containing a sufficiency of available carbon, nitrogen and trace nutrients at a temperature of between 15* and 45*C, with the incubation under aerobic conditions for a period of between 2 and 12 days. The enzyme preparation is then recovered from the medium, for example, by extraction with water or in the dissolved state by filtration and dialysis. The enzyme preparations obtained have a high milk-coagulation activity with low proteolytic and lipolytic activity.

    Abstract translation: 一种制备能够通过在含有足够的可用碳,氮和微量营养物的培养基中培养白色假丝酵母菌或其天然或合成的变体或突变体的霉菌来凝结牛奶的方法,该温度为15 DEG和45℃,在有氧条件下孵育2至12天。 然后从培养基中回收酶制剂,例如通过用水萃取或通过过滤和透析处于溶解状态。 所得酶制剂具有较高的乳凝固活性,蛋白水解和脂肪分解活性低。

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