会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Polyamidoamine-epihalohydrin resins, method of manufacture, and uses thereof
    • 聚酰胺胺 - 表卤代醇树脂,其制造方法及其用途
    • US08785593B2
    • 2014-07-22
    • US13448982
    • 2012-04-17
    • Karla D. FavorsClay E. RingoldYuping LuoCornel Hagiopol
    • Karla D. FavorsClay E. RingoldYuping LuoCornel Hagiopol
    • C08F6/00C08G73/02
    • C08G73/0286
    • A novel process for producing a polyamidoamine-epihalohydrin resin composition comprises (a) reacting a polyamidoamine with epihalohydrin to obtain a reaction mixture comprising a polyamidoamine-epihalohydrin resin; (b) adding a first acid to the reaction mixture obtained in step (a) to obtain an acid treatment composition; (c) adding a base to the acid treatment composition in step (b) to obtain a base treatment composition; and (d) adding a second acid to the base treatment composition in step (c) to obtain a polyamidoamine-epihalohydrin resin composition; wherein the polyamidoamine-epihalohydrin resin composition obtained in step (d) has less than about 700 ppm of dihalopropanol (DHP) and 3-halopropanediol (HPD).
    • 制备聚酰胺胺 - 表卤代醇树脂组合物的新方法包括(a)使聚酰胺胺与表卤代醇反应,得到包含聚酰胺胺 - 表卤醇树脂的反应混合物; (b)向步骤(a)获得的反应混合物中加入第一种酸,得到酸处理组合物; (c)在步骤(b)中向酸处理组合物中加入碱以得到碱处理组合物; 和(d)在步骤(c)中向基础处理组合物中加入第二种酸以获得聚酰胺胺 - 表卤代醇树脂组合物; 其中在步骤(d)中获得的聚酰胺胺 - 表卤代醇树脂组合物具有小于约700ppm的二卤丙醇(DHP)和3-卤代丙二醇(HPD)。
    • 8. 发明授权
    • Membrane separation process for removing residuals from polyamine-epihalohydrin resins
    • 用于除去多胺 - 表卤醇树脂残留物的膜分离方法
    • US08101710B2
    • 2012-01-24
    • US13093527
    • 2011-04-25
    • Richard J. RiehleStephen Vinciguerra
    • Richard J. RiehleStephen Vinciguerra
    • C08F6/00C08J3/00
    • D21H17/56C08G73/022C08G73/0286C09J179/02D21H21/146D21H21/18D21H21/20
    • This invention relates to a process for preparing polyamine-epihalohydrin resins having reduced levels of residuals. The process comprises (a) charging a membrane separation apparatus with an aqueous composition comprising at least one polyamine-epihalohydrin resin, and (b) separating the aqueous composition into a permeate and a retentate by passing the aqueous composition through the membrane of the membrane separation apparatus. The retentate comprises at least one polyamine-epihalohydrin resin having lower levels of residuals on an equal active component basis than the aqueous composition of (a). The permeate comprises residuals removed from the aqueous composition of (a) and less than 5% by weight of the active component of said at least one polyamine-epihalohydrin resin. The polyamine-epihalohydrin resins having reduced levels of residuals can be used to make wet strength agents, dry strength agents, creping adhesives for paper products, curing agents for wood product adhesives, and other products.
    • 本发明涉及一种制备具有降低残留水平的多胺 - 表卤代醇树脂的方法。 该方法包括:(a)用包含至少一种多胺 - 表卤醇树脂的水性组合物对膜分离装置进行充填,和(b)通过使含水组合物通过膜分离膜将水性组合物分离成渗透物和渗余物 仪器。 所述保留物包含至少一种与(a)的水性组合物相同的活性成分基础上具有较低残留水平的多胺 - 表卤醇树脂。 渗透物包含从(a)的水性组合物中除去的残余物和小于所述至少一种多胺 - 表卤代醇树脂的活性组分的5重量%。 具有降低残留水平的多胺 - 表卤醇树脂可用于制备湿强度剂,干强度剂,纸产品起皱粘合剂,木制品粘合剂用固化剂和其它产品。