Process for enhancing oil recovery using scleroglucan powders
    2.
    发明授权
    Process for enhancing oil recovery using scleroglucan powders 失效
    使用硬皮葡聚糖粉增强油回收的方法

    公开(公告)号:US5323857A

    公开(公告)日:1994-06-28

    申请号:US8307

    申请日:1993-01-25

    摘要: The present invention is directed to a process for improving the dispersibility and the filterability of scleroglucan powders, in which a surfactant is incorporated in the coagulated polymer. The powder obtained according to the process has a dispersibility and a filterability after drying of the coagulum which are greatly superior to those of a powder treated after drying with the same quantity of surfactant or of a powder in solution treated with this same quantity of surfactant. The present invention is also directed to methods for preventing the sudden rush of well water into the strata of petroleum fields, to methods for modifying the injection profile, and to methods for improved hydrocarbon recovery from petroleum fields.

    摘要翻译: 本发明涉及提高硬化葡聚糖粉末的分散性和过滤性的方法,其中表面活性剂掺入凝结聚合物中。 根据该方法获得的粉末具有在用相同量的表面活性剂处理的溶液中用相同量的表面活性剂或粉末在干燥后干燥后的分散性和过滤性大大优于用干燥后的粉末处理的粉末。 本发明还涉及用于防止井水突然涌入石油地层的方法,改进喷射曲线的方法,以及用于改善从石油田中回收烃的方法。

    Core-shell impact modifiers for transparent polymer matrices
    5.
    发明授权
    Core-shell impact modifiers for transparent polymer matrices 有权
    用于透明聚合物基质的核壳抗冲击改性剂

    公开(公告)号:US08466214B2

    公开(公告)日:2013-06-18

    申请号:US13057555

    申请日:2009-08-04

    IPC分类号: C08L51/04 C08L9/00 C08L45/00

    摘要: Processes for making a core and core-shell copolymers are provided herein. Processes for making crosslinked elastomeric core particles includes emulsion polymerizing, in the presence of a radical polymerization initiator, a polymerization mixture containing at least one ethylenic elastomeric monomer, at least one crosslinking agent, and at least one sulfur-containing additive of the formula I below, where R and Z are defined herein. The core-shell copolymers formed are useful for example as additives in polymer matrices such as for modifying impact strength and improving optical properties.

    摘要翻译: 本文提供了制备核心和核 - 壳共聚物的方法。 用于制备交联的弹性体芯颗粒的方法包括在自由基聚合引发剂存在下,将含有至少一种烯属弹性体单体,至少一种交联剂和至少一种下式I的含硫添加剂的聚合混合物乳液聚合 其中R和Z在本文中定义。 形成的核 - 壳共聚物可用作例如聚合物基质中的添加剂,例如用于改善冲击强度和改善光学性能。

    Process for the preparation of (dialkylphosphono)alkyl (meth)acrylate
    7.
    发明授权
    Process for the preparation of (dialkylphosphono)alkyl (meth)acrylate 失效
    制备(甲基)丙烯酸(二烷基膦酰基)烷基酯的方法

    公开(公告)号:US06632957B2

    公开(公告)日:2003-10-14

    申请号:US10038234

    申请日:2001-10-23

    IPC分类号: C07F902

    CPC分类号: C07F9/4006

    摘要: The invention relates to a process allowing the preparation of a (dialkylphosphono)alkyl (meth)acrylate, corresponding to the formula: by reaction of an alkyl (meth)acrylate A of formula: with a dialkylphosphonated alcohol B of formula: in the presence of a catalyst comprising zirconium acetylacetonate.

    摘要翻译: 本发明涉及一种制备(式(甲基)丙烯酸二烷基膦酰基)(甲基)丙烯酸烷基酯的方法,其通式为:式(甲基)丙烯酸烷基酯与下式的二烷基膦酸化醇B反应: 包含乙酰丙酮锆的催化剂

    IMPACT ADDITIVES
    9.
    发明申请
    IMPACT ADDITIVES 审中-公开
    影响添加剂

    公开(公告)号:US20120046416A1

    公开(公告)日:2012-02-23

    申请号:US13257030

    申请日:2010-03-12

    摘要: The invention relates to a polymer of core-shell structure containing a core having at least one elastomeric polymer, with a glass transition temperature of less than 25° C., and a shell having at least one polymer, with a glass transition temperature of greater than 25° C., where at least one of the polymers includes (meth)acrylic acid ester monomers containing organic carbon derived from biomass. The present invention also relates to a process for preparing the core-shell polymers and to their use as impact additives, and to a composition containing them.

    摘要翻译: 本发明涉及一种核 - 壳结构的聚合物,其包含具有至少一种弹性体聚合物的芯,玻璃化转变温度低于25℃,壳体具有至少一种聚合物,玻璃化转变温度较高 其中至少一种聚合物包含含有源自生物质的有机碳的(甲基)丙烯酸酯单体。 本发明还涉及制备核 - 壳聚合物的方法及其作为冲击添加剂的用途,以及含有它们的组合物。