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5 条记录 (耗时 0.016 秒)

    Mutual solvents comprising 2,2,4-trimethyl-1,3-pentanediol mono-or di-isobutyrate and stable emulsions thereof
    1.
    发明授权
    Mutual solvents comprising 2,2,4-trimethyl-1,3-pentanediol mono-or di-isobutyrate and stable emulsions thereof 失效
    包含2,2,4-三甲基-1,3-戊二醇单或二异丁酸酯的相互溶剂及其稳定的乳液

    公开(公告)号：US06242388B1

    公开(公告)日：2001-06-05

    申请号：US09197494

    申请日：1998-11-23

    申请人： Mahendra Kumar Sharma ,  Ronald Allen Smith ,  Melissa Darlene Goodwin

    发明人： Mahendra Kumar Sharma ,  Ronald Allen Smith ,  Melissa Darlene Goodwin

    IPC分类号： C09K300

    CPC分类号： B01F17/0064 ,  C09K8/524

    摘要： A mutual solvent for use in oil and gas well operations comprising 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and/or 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, a coupling solvent, and an acid stable surfactant. The coupling solvent is selected from ethylene glycol monobutyl ether; diethylene glycol monobutyl ether; propylene glycol monomethyl ether acetate; propylene glycol monomethyl ether; C1-C5 alkyl alcohol; and mixtures thereof. The invention also relates to an emulsion for use in oil and gas well operations comprising an aqueous acid or acid-salt brine solution and the mutual solvent as described above. An emulsion according to the invention is stable, non-toxic, and effectively removes asphaltenic and paraffinic hydrocarbons from drilling equipment and oil and gas wells.

    摘要翻译： 用于油气井操作的相互溶剂，包括2,2,4-三甲基-1,3-戊二醇单异丁酸酯和/或2,2,4-三甲基-1,3-戊二醇二异丁酸酯，偶联溶剂和 酸稳定的表面活性剂。 偶联溶剂选自乙二醇单丁醚; 二甘醇单丁醚; 丙二醇单甲醚乙酸酯; 丙二醇单甲醚; C1-C5烷基醇; 及其混合物。 本发明还涉及用于油气井操作的乳液，其包含如上所述的酸或盐酸盐水溶液和互溶剂。 根据本发明的乳液是稳定的，无毒的，并有效地从钻井设备和油气井中除去沥青和石蜡烃。

    Surfactantless latex compositions and methods of making polymer blends using these compositions
    2.
    发明授权
    Surfactantless latex compositions and methods of making polymer blends using these compositions 失效
    不含表面活性剂的胶乳组合物和使用这些组合物制备聚合物共混物的方法

    公开(公告)号：US06462109B1

    公开(公告)日：2002-10-08

    申请号：US09668449

    申请日：2000-09-22

    申请人： Mahendra Kumar Sharma ,  Linda Jane Adams

    发明人： Mahendra Kumar Sharma ,  Linda Jane Adams

    IPC分类号： C08L6700

    CPC分类号： C08J3/095 ,  C08F273/00 ,  C08F283/00 ,  C08F283/04 ,  C08J3/02 ,  C08L51/08 ,  C08L2666/02

    摘要： The present invention relates to surfactantless latex compositions. More particularly, the present invention pertains to surfactantless latex compositions comprising sulfo-polyester polymers wherein the compositions have a continuous phase comprising water, diol, polyol or a mixture thereof. Still further, the present invention provides methods of making polymer blends comprising a condensation polymer and a latex polymer whereby the latex polymer is derived from a surfactantless latex composition comprising sulfo-polyester polymers. Polymer blends made by such methods are also provided.

    摘要翻译： 本发明涉及无表面活性剂胶乳组合物。 更具体地说，本发明涉及包含磺基聚酯聚合物的无表面活性剂胶乳组合物，其中组合物具有包含水，二醇，多元醇或其混合物的连续相。 此外，本发明提供了制备包含缩聚物和胶乳聚合物的聚合物共混物的方法，由此胶乳聚合物衍生自包含磺基聚酯聚合物的无表面活性剂胶乳组合物。 还提供了通过这些方法制备的聚合物共混物。

    Process for the preparation of methyl p-vinylbenzoate and p-vinyl benzoic acid, and their use in latex compositions
    5.
    发明授权
    Process for the preparation of methyl p-vinylbenzoate and p-vinyl benzoic acid, and their use in latex compositions 失效
    制备对乙烯基苯甲酸甲酯和对乙烯基苯甲酸的方法及其在胶乳组合物中的应用

    公开(公告)号：US06313340B1

    公开(公告)日：2001-11-06

    申请号：US09358776

    申请日：1999-07-22

    申请人： Philip Conrad Heidt ,  Matthew Lynn Elliott ,  Mahendra Kumar Sharma

    发明人： Philip Conrad Heidt ,  Matthew Lynn Elliott ,  Mahendra Kumar Sharma

    IPC分类号： C07C6976

    CPC分类号： C07C51/09 ,  C07C67/46 ,  C08F212/14 ,  C07C63/64 ,  C07C69/76 ,  C08F212/08 ,  C08F2220/281 ,  C08F220/14 ,  C08F2220/1825

    摘要： The present invention describes a process for the direct preparation of methyl p-vinylbenzoate from methyl p-formylbenzoate using ketene in the presence of potassium acetate. The chief products obtained from the process are about a five to two ratio of methyl p-vinylbenzoate to p-carbomethoxycinnamic acid. The latter may be thermally decarboxylated, especially in the presence of copper powder, to produce additional quantities of methyl p-vinylbenzoate. Methyl p-vinylbenzoate may further undergo hydrolysis to form p-vinyl benzoic acid. Both methyl p-vinyl benzoate and p-vinyl benzoic acid may be polymerized with ethylenically unsaturated monomers to form useful latex compositions of the present invention.

    摘要翻译： 本发明描述了一种使用乙烯酮在乙酸钾存在下从对甲酰基苯甲酸甲酯直接制备对乙烯基苯甲酸甲酯的方法。 从该方法获得的主要产物是对乙烯基苯甲酸甲酯与对甲氧基肉桂酸的比例约为五至二。 后者可以热脱羧，特别是在铜粉的存在下，以产生额外量的对乙烯基苯甲酸甲酯。 对乙烯基苯甲酸甲酯可进一步水解形成对乙烯基苯甲酸。 对甲基对乙烯基苯甲酸酯和对乙烯基苯甲酸均可与烯属不饱和单体聚合，形成本发明的有用胶乳组合物。