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    • 3. 发明申请
    • COMPOSITION AND METHOD FOR RECOVERING HYDROCARBON FLUIDS FROM A SUBTERRANEAN RESERVOIR
    • 从地下储层回收烃类液体的组合物和方法
    • US20090264324A1
    • 2009-10-22
    • US12426485
    • 2009-04-20
    • Pious KurianKin-Tai Chang
    • Pious KurianKin-Tai Chang
    • C09K8/70
    • C09K8/512C09K8/516C09K8/588
    • This invention is directed to a composition comprising crosslinked expandable polymeric microparticles comprising structured polymers having labile crosslinks or having a labile core and non-labile crosslinks. The starting configuration of the structured polymers constrains the microparticle to an unexpanded volume average particle size diameter of from about 0.05 to about 5,000 microns. Labile crosslinks or the labile core of the structured polymers are subject to degradation which results expansion of the microparticle. The invention is further directed to the use of the composition for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.
    • 本发明涉及包含交联的可膨胀聚合物微粒的组合物,其包含具有不稳定交联或具有不稳定核心和非不稳定交联的结构聚合物。 结构化聚合物的起始构型将微粒约束至未发展的体积平均粒度直径为约0.05至约5,000微米。 不规则交联或结构化聚合物的不稳定核心经历降解,这导致微粒的膨胀。 本发明进一步涉及组合物用于改变地层的渗透性并增加存在于地层中的烃类流体的动员和/或回收率的用途。
    • 8. 发明授权
    • Method for producing bis-[4-(diphenylsulfonio)pheny] sulfide
bis-M.X.sub.6 photoinitiator
    • 双[4-(二苯基锍基)苯基]硫醚双-MX6光引发剂的制备方法
    • US4247473A
    • 1981-01-27
    • US59189
    • 1979-07-19
    • Kin-Tai Chang
    • Kin-Tai Chang
    • C08G59/68C08G85/00G03F7/029G03F7/031C07F9/66
    • C07C381/12C08G59/68C08G85/00G03F7/029
    • A highly effective photoinitiator for cationic polymerization of monomer formulations is prepared by reacting diphenyl sulfide with chlorine gas in a Friedel-Crafts reaction in an organic solvent to form bis-[4-(diphenylsulfonio)phenyl] sulfide dichloride. This product is recovered and then reacted in an aqueous solution with a compound having the formula T.MF.sub.6 wherein M is one of phosphorus, antimony or arsenic and T is hydrogen or a metal whose halide salt is water soluble. The two compounds react in the aqueous medium to produce a precipitate which includes at least about 50 percent by weight bis-[4-(diphenylsulfonio) phenyl] sulfide bis-MF.sub.6, and this precipitate may be recovered and dried for utilization without further purification if so desired. Purification may be effected by dissolving the dried product in an organic solvent, cooling the solvent to precipitate the impurities, and thereafter recovering relatively pure bis-[4-(diphenylsulfonio) phenyl] sulfide bis-MF.sub.6 by chilling the solvent solution to form a precipitate, and then separating and drying the precipitate. The preferred compounds are those wherein the substituent M is phosphorus so that the product comprises bis-[4-(diphenylsulfonio)phenyl] sulfide bis-hexafluorophosphate. The cationic polymerization processes utilize the photoinitiator in an amount equal to about 0.5-6.0 percent by weight of the monomer therein.
    • 通过二苯硫醚与氯气在Friedel-Crafts反应中在有机溶剂中反应形成双 - [4-(二苯基锍基)苯基]硫醚二氯化物,制备用于单体制剂阳离子聚合的高效光引发剂。 将该产物回收,然后在水溶液中与具有式T.MF6的化合物反应,其中M为磷,锑或砷之一,T为氢或卤化物盐为水溶性金属。 这两种化合物在水性介质中反应产生沉淀,其包括至少约50重量%的双 - [4-(二苯基锍基)苯基]硫醚双-FF6,并且该沉淀物可被回收并干燥以进一步纯化,如果 所以希望。 通过将干燥的产物溶解在有机溶剂中,冷却溶剂以沉淀杂质,然后通过冷却溶剂溶液以形成沉淀物,回收相对纯的双 - [4-(二苯基锍基)苯基]硫醚双-FF6,可以进行纯化 ,然后分离和干燥沉淀物。 优选的化合物是其中取代基M是磷的化合物,使得产物包含双 - [4-(二苯基锍基)苯基]硫醚双 - 六氟磷酸盐。 阳离子聚合方法利用等于其中单体重量的约0.5-6.0%的量的光引发剂。