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    Process for the preparation of fluoroformates
    4.
    发明授权
    Process for the preparation of fluoroformates 失效
    氟甲酸酯的制备方法

    公开(公告)号：US4612143A

    公开(公告)日：1986-09-16

    申请号：US651661

    申请日：1984-09-17

    申请人： Marc Piteau ,  Jean-Pierre Senet ,  Patrick Wolf ,  Roy A. Olofson ,  Vu A. Dang

    发明人： Marc Piteau ,  Jean-Pierre Senet ,  Patrick Wolf ,  Roy A. Olofson ,  Vu A. Dang

    IPC分类号： C07C68/06 ,  C07C69/04 ,  C07C69/96

    CPC分类号： C07C68/06 ,  C07C69/96

    摘要： A process for the preparation of fluoroformates of formula: ##STR1## in which R.sup.1 is a substituted or unsubstituted, saturated or unsaturated aliphatic, cycloaliphatic or polycyclic radical, or substituted or unsubstituted araliphatic radical or an aromatic radical, which consists of reacting a carbonate of formula: ##STR2## in which R.sup.1 has the same meaning as hereinabove and R.sup.2 is hydrogen, alkyl of 1-12 carbon atoms, cycloalkyl of 5-12 carbon atoms, saturated or unsaturated, unsubstituted or substituted by one or more halogen atoms or R.sup.2 is aryl, unsubstituted or substituted by one or more halogen atoms, with an alkali or alkaline earth fluoride, ammonium fluoride or a quaternary ammonium fluoride, of formula FNR.sup.3 R.sup.4 R.sup.5 R.sup.6, wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6 are the same or different and are hydrogen, alkyl or aralkyl of 1-12 carbon atoms or a fluoride which is KHF.sub.2, NH.sub.4 HF.sub.2 or KSO.sub.2 F. The fluoride is activated by a complexing agent for the cation which is a cryptate, a cyclic or linear polyether or by means of a polar aprotic compound. The carbonate is split to give a reaction mixture containing an aldehyde and the fluoroformate which is removed from the reaction mixture.

    摘要翻译： 制备下式的氟甲酸酯的方法：其中R 1是取代或未取代的饱和或不饱和的脂族，脂环族或多环基团，或取代或未取代的芳脂族基团或芳族基团，其由 式：其中R 1具有与上述相同的含义，R 2是氢，1-12个碳原子的烷基，5-12个碳原子的环烷基，未被取代或被一个或多个卤素原子或R 2取代的5-12个碳原子的环烷基 是未取代或被一个或多个卤素原子取代的芳基与式FNR 3 R 4 R 5 R 6的碱金属或碱土金属氟化物，氟化铵或季铵氟化物，其中R 3，R 4，R 5，R 6相同或不同，为氢， 1-12个碳原子的烷基或芳烷基或作为KHF2，NH4HF2或KSO2F的氟化物。 氟化物由用于阳离子的络合剂活化，所述络合剂是密封剂，环状或线性聚醚或通过极性非质子化合物。 分离碳酸酯，得到含有从反应混合物中除去的醛和氟甲酸酯的反应混合物。

    DIRECT EPOXIDATION CATALYST
    5.
    发明申请
    DIRECT EPOXIDATION CATALYST 有权
    直接环氧化催化剂

    公开(公告)号：US20120083612A1

    公开(公告)日：2012-04-05

    申请号：US12894626

    申请日：2010-09-30

    申请人： Vu A. Dang ,  Roger A. Grey ,  Jay F. Miller ,  Beavern S. Mandimutsira

    发明人： Vu A. Dang ,  Roger A. Grey ,  Jay F. Miller ,  Beavern S. Mandimutsira

    IPC分类号： C07D301/04

    CPC分类号： C07D301/06

    摘要： The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal. The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone.

    摘要翻译： 本发明是在包含乙酸的溶剂中，在醌 - 酸盐和包含钛沸石和贵金属的催化剂存在下，用氢和氧环氧化烯烃的方法。 与仅使用醌的方法相比，该方法导致更高的生产率和来自氢气和氧气的环氧丙烷的改进选择性。

    Making polyolefin graft copolymers with low molecular weight side chains using a polymeric peroxide as an initiator
    7.
    发明授权
    Making polyolefin graft copolymers with low molecular weight side chains using a polymeric peroxide as an initiator 失效
    使用聚合过氧化物作为引发剂制备具有低分子量侧链的聚烯烃接枝共聚物

    公开(公告)号：US06444722B1

    公开(公告)日：2002-09-03

    申请号：US09703488

    申请日：2000-11-02

    申请人： Vu A. Dang ,  Cheng Q. Song

    发明人： Vu A. Dang ,  Cheng Q. Song

    IPC分类号： C08J328

    CPC分类号： C08F255/02

    摘要： Graft copolymers with low molecular weight side chains are prepared by (1) irradiating a propylene polymer material in the absence of oxygen, (2) adding a controlled amount of oxygen to the irradiated polymer material so that the polymer is exposed to an amount of oxygen greater than 0.004% but less than 15% by volume at a temperature of 40° C. to 140° C., to produce an oxidized propylene polymer material containing greater than 1 mmol total peroxide per kilogram of propylene polymer material, (3) optionally, heating the oxidized propylene polymer material in a non-oxidizing atmosphere to a temperature of at least 80° C. but below the softening point of the polymer, and (4) treating the oxidized propylene polymer material in a non-oxidizing atmosphere with at least one grafting monomer that is capable of being polymerized by free radicals, in the presence of at least one additive to control the molecular weight of the side chains of the polymerized grafting monomer selected from (a) at least one hydroxylamine derivative polymerization inhibitor, and (b) at least one thio-, nitro-, or halogen-substituted aliphatic or aromatic compound, or an aliphatic or aromatic phosphine derivative, and (5) deactivating the residual free radicals in the resulting grafted propylene polymer material and removing any unreacted vinyl monomer from the material.

    摘要翻译： 具有低分子量侧链的接枝共聚物通过（1）在不存在氧的情况下照射丙烯聚合物材料来制备，（2）向被照射的聚合物材料中加入受控量的氧，使得聚合物暴露于一定量的氧 在40℃至140℃的温度下大于0.004％但小于15体积％，以产生含有大于1mmol总过氧化物/千克丙烯聚合物材料的氧化丙烯聚合物材料，（3）任选地 将氧化丙烯聚合物材料在非氧化性气氛中加热到至少80℃但低于聚合物软化点的温度，和（4）在非氧化性气氛中处理氧化丙烯聚合物材料， 在至少一种添加剂的存在下能够由自由基聚合的至少一种接枝单体，以控制聚合接枝单体的侧链的分子量，所述聚合接枝单体选自（a） 至少一种羟胺衍生物聚合抑制剂，和（b）至少一种硫代 - ，硝基 - 或卤素取代的脂族或芳族化合物或脂族或芳族膦衍生物，和（5）使得到的残余自由基失活 接枝丙烯聚合物材料并从材料中除去任何未反应的乙烯基单体。

    Direct epoxidation process
    8.
    发明授权
    Direct epoxidation process 有权
    直接环氧化工艺

    公开(公告)号：US08440846B2

    公开(公告)日：2013-05-14

    申请号：US12894626

    申请日：2010-09-30

    申请人： Vu A. Dang ,  Roger A. Grey ,  Jay F. Miller ,  Beaven S. Mandimutsira

    发明人： Vu A. Dang ,  Roger A. Grey ,  Jay F. Miller ,  Beaven S. Mandimutsira

    IPC分类号： C07D301/06 ,  C07D301/12

    CPC分类号： C07D301/06

    摘要： The invention is a process for epoxidizing an olefin with hydrogen and oxygen in a solvent comprising acetonitrile in the presence of an quinone-acid salt and a catalyst comprising a titanium zeolite and a noble metal. The process results in higher productivity and improved selectivity to propylene oxide from hydrogen and oxygen, as compared to processes that use only a quinone.

    摘要翻译： 本发明是在包含乙酸的溶剂中，在醌 - 酸盐和包含钛沸石和贵金属的催化剂存在下，用氢和氧环氧化烯烃的方法。 与仅使用醌的方法相比，该方法导致更高的生产率和来自氢气和氧气的环氧丙烷的改进选择性。

    Irradiation process for making olefin graft copolymers with low weight side chains
    9.
    发明授权
    Irradiation process for making olefin graft copolymers with low weight side chains 失效
    制造具有低重量侧链的烯烃接枝共聚物的照射方法

    公开(公告)号：US06518327B1

    公开(公告)日：2003-02-11

    申请号：US09704325

    申请日：2000-11-02

    申请人： Vu A. Dang ,  Tam T. M. Phan ,  Jeanine A. Smith ,  Cheng Q. Song

    发明人： Vu A. Dang ,  Tam T. M. Phan ,  Jeanine A. Smith ,  Cheng Q. Song

    IPC分类号： C08F245

    CPC分类号： C08F255/02

    摘要： Graft copolymers are prepared, in a non-oxidizing atmosphere, by (1) irradiating a particulate olefin polymer material with high energy ionizing radiation, (2) treating the irradiated olefin polymer material with at least one grafting monomer that is capable of forming side chains on the olefin polymer material, in the presence of at least one additive to control the molecular weight of the side chains of the polymerized grafting monomer selected from (a) at least one hydroxylamine derivative polymerization inhibitor, and (b) at least one thio-, nitro-, or halogen-substituted aliphatic or aromatic compound or an aliphatic or aromatic phosphine derivative, and (3) deactivating the residual free radicals in the resulting grafted olefin polymer material and removing any unreacted vinyl monomer from the material. Graft copolymers with low molecular weight side chains are produced that are easier to process and have improved internal and surface morphology.

    摘要翻译： 接枝共聚物在非氧化性气氛中通过（1）用高能电离辐射照射颗粒状烯烃聚合物材料来制备，（2）用能够形成侧链的至少一种接枝单体处理被照射的烯烃聚合物材料 在所述烯烃聚合物材料上，在至少一种添加剂的存在下，以控制选自（a）至少一种羟胺衍生物聚合抑制剂的聚合接枝单体的侧链的分子量，和（b）至少一种硫代 - ，硝基或卤素取代的脂族或芳族化合物或脂族或芳族膦衍生物，和（3）使得到的接枝烯烃聚合物材料中残留的自由基失活并从材料中除去任何未反应的乙烯基单体。 产生具有低分子量侧链的接枝共聚物，其更易于加工并具有改善的内部和表面形态。

    Method of forming and processing conductive polymer composites
    10.
    发明授权
    Method of forming and processing conductive polymer composites 失效
    导电聚合物复合材料的形成和处理方法

    公开(公告)号：US5221579A

    公开(公告)日：1993-06-22

    申请号：US592353

    申请日：1990-10-03

    申请人： Jack Kwiatek ,  Vu A. Dang

    发明人： Jack Kwiatek ,  Vu A. Dang

    IPC分类号： C08G61/12 ,  C08J3/00 ,  C08L23/02 ,  C08L23/06 ,  C08L65/00 ,  C08L77/00 ,  H01B1/12

    CPC分类号： H01B1/127 ,  C08G61/124 ,  C08J3/005 ,  C08L23/06 ,  C08L65/00 ,  C08L23/02 ,  C08L77/00 ,  Y10T428/2991

    摘要： A processable thermoplastic conductive composite resin is formed by coating polypyrrole onto the surface of microbeads by in situ oxidative polymerization. The microbeads, generally having an average diameter from about 0.5 to about 500 microns, are coated with polypyrrole by combining pyrrole, oxidizing agent and the beads in a protic solvent such as water, methanol, ethanol, ethylene glycol and the like. The pyrrole polymerizes on the surface of the microbeads. The microbeads, which are thermoplastic, can then be processed and the conductivity of the processed polymer remains high, generally about 0.1 to about 10 S/cm. This is suitable for use as a conductive film. By incorporating a sulfonate counterion, the conductivity of the composite is significantly improved. Further, by incorporating a heat activated cross-linking agent such as a peroxide, the tensile strength of the processed polymer is significantly improved.

    摘要翻译： 通过原位氧化聚合将聚吡咯涂布在微珠的表面上形成可加工的热塑性导电复合树脂。 一般平均直径为约0.5至约500微米的微珠通过在质子溶剂如水，甲醇，乙醇，乙二醇等中组合吡咯，氧化剂和珠粒，涂覆聚吡咯。 吡咯在微珠的表面聚合。 然后可以加工热塑性的微珠，并且加工的聚合物的导电性保持高，通常为约0.1至约10S / cm。 这适合用作导电膜。 通过掺入磺酸盐抗衡离子，复合材料的导电性明显提高。 此外，通过加入热活化交联剂如过氧化物，显着提高了加工聚合物的拉伸强度。