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    Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents
    1.
    发明授权
    Polyamidoamine/epichlorohydrin resins bearing polyol sidechains as dry strength agents 有权
    具有多元醇侧链的聚酰胺胺/表氯醇树脂作为干强度剂

    公开(公告)号：US06346170B1

    公开(公告)日：2002-02-12

    申请号：US09665120

    申请日：2000-09-20

    Applicant: Barton K. Bower

    Inventor： Barton K. Bower

    IPC: D21H1757

    CPC classification number: D21H21/18 ,  C08G73/0286 ,  D21H17/54

    Abstract: Compositions suitable for use as dry strength additives comprising water soluble polyamidoamine/epchlorohydrin resin bearing polyol sidechains wherein the weight fraction of the polyol in the resin is less than 50 percent by weight and the polyol sidechain is attached to the polyamidoamine/epichlorohydrin resin by carbon-nitrogen bond, such as amide bond or secondary or tertiary amine bonds.

    Abstract translation: 适合用作干强度添加剂的组合物，其包含含有多元醇侧链的水溶性聚酰胺胺/表氯醇树脂，其中树脂中多元醇的重量分数小于50重量％，多元醇侧链通过碳 - 碳双键连接到聚酰胺胺/表氯醇树脂上， 氮键，例如酰胺键或仲胺或叔胺键。

    Tertiary amine polyamidoamine-epihalohydrin polymers
    2.
    发明授权
    Tertiary amine polyamidoamine-epihalohydrin polymers 失效
    叔胺聚酰胺胺 - 表卤代醇聚合物

    公开(公告)号：US6111032A

    公开(公告)日：2000-08-29

    申请号：US71902

    申请日：1998-05-04

    Applicant: Barton K. Bower

    Inventor： Barton K. Bower

    IPC: C08G69/48 ,  C08G73/02 ,  C08L77/00

    CPC classification number: C08G69/48 ,  C08G73/0286

    Abstract: A process for preparing a tertiary amine polyamidoamine-epihalohydrin polymer having a low level of epihalohydrin byproducts. In this process a tertiary amine polyamidoamine prepolymer is reacted with an epihalohydrin; the molar ratio, of epihalohydrin to tertiary amine groups in the polyamidoamine prepolymer, is less than 1.0 to 1.0. The reaction is further conducted at a pH of from about 7.5 to less than about 9.0, in the presence of a nonhalide acid, and at a temperature of not more than about 35.degree. C.

    Abstract translation: 一种制备具有低水平表卤代醇副产物的叔胺聚酰胺胺 - 表卤代醇聚合物的方法。 在该方法中，叔胺聚酰胺胺预聚物与表卤代醇反应; 聚酰胺胺预聚物中表卤代醇与叔胺基团的摩尔比小于1.0至1.0。 在非卤酸存在下，在不高于约35℃的温度下，反应进一步在约7.5至小于约9.0的pH下进行。

    Wet strength resins having reduced levels of organic halogen by-products
    4.
    发明授权
    Wet strength resins having reduced levels of organic halogen by-products 失效
    具有降低有机卤素副产物含量的湿强度树脂

    公开(公告)号：US5614597A

    公开(公告)日：1997-03-25

    申请号：US355925

    申请日：1994-12-14

    Applicant: Barton K. Bower

    Inventor： Barton K. Bower

    IPC: C08G69/48 ,  C08G73/02 ,  D21H17/46 ,  D21H17/55 ,  D21H21/20 ,  C08L71/00 ,  C08L77/00

    CPC classification number: D21H21/20 ,  C08G73/0286 ,  D21H17/55

    Abstract: Wet strength resins for paper are prepared by a process comprising the following steps in sequence: (1) reacting a polyamidoamine with an epihalohydrin until the amount of unreacted epihalohydrin present is less than about 10% by weight of the amount of epihalohydrin charged, (2) adding a water-soluble, nonpolymeric amine in an amount of about 0.1 to about 50 mole %, based on the amine in the polyamidoamine, and (3) heating to effect crosslinking. An optional amine additive reaction step can be included after step (2). A nonhalogen acid such as sulfuric acid can be added toward the end of the crosslinking step to decrease the total organic halogen content and increase the wet strengthening effectiveness.

    Abstract translation: 用于纸的湿强度树脂通过包括以下步骤的方法制备：（1）使聚酰胺胺与表卤代醇反应，直到存在的未反应的表卤代醇的量小于加入的表卤代醇的量的约10重量％，（2 ），基于聚酰胺胺中的胺加入约0.1至约50摩尔％的水溶性非聚合胺，和（3）加热以进行交联。 在步骤（2）之后可以包括任选的胺添加剂反应步骤。 可以在交联步骤的末端加入非卤酸如硫酸，以降低总的有机卤素含量并增加湿强化效果。

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