Reduced by product polyamine-epihalohydrin resins
    2.
    发明授权
    Reduced by product polyamine-epihalohydrin resins 有权
    由产品多胺 - 表卤代醇树脂减少

    公开(公告)号:US07175740B2

    公开(公告)日:2007-02-13

    申请号:US10396155

    申请日:2003-03-25

    IPC分类号: D21H17/55 D21H21/20 C08G69/46

    摘要: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD. A paper product containing the storage stable polyaminopolyamide-epihalohydrin resin, when corrected for adding at about a 1 wt % addition level of the polyaminopolyamide-epihalohydrin resin, contains less than about 250 ppb of CPD. Moreover, a resin can be prepared starting from a prepolymer having a low acid number or low concentration of acid end groups. The invention is also directed to papers containing the resins.

    摘要翻译: 使多胺 - 表卤代醇树脂保存稳定的方法,包括制备储存稳定树脂的方法和/或处理树脂的方法。 包含CPD形成物质的含有多胺 - 表卤醇树脂的组合物可以在至少一种抑制,减少和除去CPD形成物质的条件下用至少一种试剂处理,以获得减少的CPD形成树脂,使得 含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存2周时,pH约2.5-3.5含有低于约250ppm干基的CPD。 本发明还涉及一种凝胶储存稳定的减少CPD形成树脂,使得含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存24小时并在24小时时测量时产生 小于约1000ppm的干燥基础的CPD。 含有储存稳定的聚氨基多酰胺 - 表卤代醇树脂的纸产品在校正后加入多氨基聚酰胺 - 表卤代醇树脂的约1重量%时含有小于约250ppb的CPD。 此外,可以从具有低酸值或低浓度酸端基的预聚物开始制备树脂。 本发明还涉及含有树脂的纸张。

    Reduced byproduct high solids polyamine-epihalohydrin compositions
    3.
    发明授权
    Reduced byproduct high solids polyamine-epihalohydrin compositions 有权
    副产物高固含量多胺 - 表卤代醇组合物

    公开(公告)号:US07303652B2

    公开(公告)日:2007-12-04

    申请号:US10013049

    申请日:2001-12-10

    摘要: A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of less than about 0.5 and where the composition has a solids content of at least 15 wt % and includes CPD-forming species, with at least one enzymatic agent under conditions to inhibit, reduce or remove the CPD-forming species to obtain a gelation storage stable reduced CPD-forming resin so that the composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 24 hours at 50° C. and a pH of about 1.0 releases less than about 100 ppm dry basis of CPD.

    摘要翻译: 描述了使多胺 - 表卤代醇树脂储存稳定的方法。 该方法需要处理多胺 - 表卤醇树脂组合物,其中树脂在表卤代醇与仲胺基团的摩尔比小于约0.5的反应中形成,并且组合物的固体含量至少为15重量%,并且包括 CPD形成物质与至少一种酶剂在抑制,减少或除去形成CPD的物质以获得凝胶储存稳定的减少的CPD形成树脂的条件下,使得含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物当 在50℃下保存24小时,并且约1.0的pH释放小于约100ppm的干燥基础的CPD。

    Reduced by product polyamine-epihalohydrin resins
    4.
    发明申请
    Reduced by product polyamine-epihalohydrin resins 审中-公开
    由产品多胺 - 表卤代醇树脂减少

    公开(公告)号:US20050006042A1

    公开(公告)日:2005-01-13

    申请号:US10438117

    申请日:2003-05-14

    摘要: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD. A paper product containing the storage stable polyaminopolyamide-epihalohydrin resin, when corrected for adding at about a 1 wt % addition level of the polyaminopolyamide-epihalohydrin resin, contains less than about 250 ppb of CPD. Moreover, a resin can be prepared starting from a prepolymer having a low acid number or low concentration of acid end groups. The invention is also directed to papers containing the resins.

    摘要翻译: 使多胺 - 表卤代醇树脂保存稳定的方法,包括制备储存稳定树脂的方法和/或处理树脂的方法。 包含CPD形成物质的含有多胺 - 表卤醇树脂的组合物可以在至少一种抑制,减少和除去CPD形成物质的条件下用至少一种试剂处理,以获得减少的CPD形成树脂,使得 含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存2周时,pH约2.5-3.5含有低于约250ppm干基的CPD。 本发明还涉及一种凝胶储存稳定的减少CPD形成树脂,使得含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存24小时并在24小时时测量时产生 小于约1000ppm的干燥基础的CPD。 含有储存稳定的聚氨基多酰胺 - 表卤代醇树脂的纸产品在校正后加入多氨基聚酰胺 - 表卤代醇树脂的约1重量%时含有小于约250ppb的CPD。 此外,可以从具有低酸值或低浓度酸端基的预聚物开始制备树脂。 本发明还涉及含有树脂的纸张。

    Reduced byproduct polyamine-epihalohydrin resins
    5.
    发明申请
    Reduced byproduct polyamine-epihalohydrin resins 审中-公开
    副产物多胺 - 表卤代醇树脂

    公开(公告)号:US20070137821A1

    公开(公告)日:2007-06-21

    申请号:US11645968

    申请日:2006-12-27

    IPC分类号: D21H19/30 C08G69/48

    摘要: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD. A paper product containing the storage stable polyaminopolyamide-epihalohydrin resin, when corrected for adding at about a 1 wt % addition level of the polyaminopolyamide-epihalohydrin resin, contains less than about 250 ppb of CPD. Moreover, a resin can be prepared starting from a prepolymer having a low acid number or low concentration of acid end groups. The invention is also directed to papers containing the resins.

    摘要翻译: 使多胺 - 表卤代醇树脂保存稳定的方法,包括制备储存稳定树脂的方法和/或处理树脂的方法。 包含CPD形成物质的含有多胺 - 表卤醇树脂的组合物可以在至少一种抑制,减少和除去CPD形成物质的条件下用至少一种试剂处理,以获得减少的CPD形成树脂,使得 含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存2周时,pH约2.5-3.5含有低于约250ppm干基的CPD。 本发明还涉及一种凝胶储存稳定的减少CPD形成树脂,使得含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存24小时并在24小时时测量时产生 小于约1000ppm的干燥基础的CPD。 含有储存稳定的聚氨基多酰胺 - 表卤代醇树脂的纸产品在校正后加入多氨基聚酰胺 - 表卤代醇树脂的约1重量%时含有小于约250ppb的CPD。 此外,可以从具有低酸值或低浓度酸端基的预聚物开始制备树脂。 本发明还涉及含有树脂的纸张。

    Reduced byproduct polyamine-epihalohydrin resins
    6.
    发明授权
    Reduced byproduct polyamine-epihalohydrin resins 有权
    副产物多胺 - 表卤代醇树脂

    公开(公告)号:US06554961B1

    公开(公告)日:2003-04-29

    申请号:US09592681

    申请日:2000-06-12

    IPC分类号: D21H1755

    摘要: Processes for rendering a polyamine-epihalohydrin resin storage stable, including processes that prepare a storage stable resin and/or processes that treat resins. A composition containing a polyamine-epihalohydrin resin which includes CPD-forming species can be treated with at least one agent under conditions to at least one of inhibit, reduce and remove the CPD-forming species to obtain a reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin when stored for 2 weeks at 50° C., and a pH of about 2.5 to 3.5 contains less than about 250 ppm dry basis of CPD. The invention is also directed to a gelation storage stable reduced CPD-forming resin so that a composition containing the reduced CPD-forming polyamine-epihalohydrin resin, when stored at pH 1 for 24 hours at 50° C. and measured at 24 hours, produces less than about 1000 ppm dry basis of CPD. A paper product containing the storage stable polyaminopolyamide-epihalohydrin resin, when corrected for adding at about a 1 wt % addition level of the polyaminopolyamide-epihalohydrin resin, contains less than about 250 ppb of CPD. Moreover, a resin can be prepared starting from a prepolymer having a low acid number or low concentration of acid end groups. The invention is also directed to papers containing the resins.

    摘要翻译: 使多胺 - 表卤代醇树脂保存稳定的方法,包括制备储存稳定树脂的方法和/或处理树脂的方法。 包含CPD形成物质的含有多胺 - 表卤醇树脂的组合物可以在至少一种抑制,减少和除去CPD形成物质的条件下用至少一种试剂处理,以获得减少的CPD形成树脂,使得 含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存2周时,pH约2.5-3.5含有低于约250ppm干基的CPD。 本发明还涉及一种凝胶储存稳定的减少CPD形成树脂,使得含有减少的形成CPD的多胺 - 表卤代醇树脂的组合物在50℃下储存24小时并在24小时时测量时产生 小于约1000ppm的干燥基础的CPD。 含有储存稳定的聚氨基多酰胺 - 表卤代醇树脂的纸产品在校正后加入多氨基聚酰胺 - 表卤代醇树脂的约1重量%时含有小于约250ppb的CPD。 此外,可以从具有低酸值或低浓度酸端基的预聚物开始制备树脂。 本发明还涉及含有树脂的纸张。