利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.015 秒)

    BLENDS OF GLYOXALATED POLYACRYLAMIDES AND PAPER STRENGTHENING AGENTS
    4.
    发明申请
    BLENDS OF GLYOXALATED POLYACRYLAMIDES AND PAPER STRENGTHENING AGENTS 有权
    GLYOXALATED聚丙烯酰胺和纸张增强剂的混合物

    公开(公告)号：US20090165978A1

    公开(公告)日：2009-07-02

    申请号：US12275619

    申请日：2008-11-21

    申请人： Cornel Hagiopol ,  Yuping Luo ,  David F. Townsend ,  James W. Johnston ,  Clay E. Ringold ,  Karla D. Favors

    发明人： Cornel Hagiopol ,  Yuping Luo ,  David F. Townsend ,  James W. Johnston ,  Clay E. Ringold ,  Karla D. Favors

    IPC分类号： D21H17/49 ,  C08L77/00 ,  C08L61/00 ,  C08F16/06

    CPC分类号： D21H21/20 ,  C08F8/28 ,  C08F220/56 ,  C08F226/02 ,  D21H17/07 ,  D21H17/375 ,  D21H17/56

    摘要： Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having pendant amide groups to form a first reaction mixture comprising polyacrylamide; (2) adding an acid to the first reaction mixture to form a second reaction mixture having a reduced pH and comprising the polyacrylamide; and (3) adding a second portion of glyoxal to the second reaction mixture to form the stabilized polyacrylamide. If desired, an aldehyde scavenger can be included in one or more of step (1), step (2), step (3), or the stabilized polyacrylamide. Such compositions can be used to enhance the strength of paper, particularly the wet strength of paper.

    摘要翻译： 包含两种或更多种纸张增强剂的混合物的组合物与先前已知的纸强化剂相比具有改善的稳定性。 一种组分是聚合物纸强化剂，优选湿增强剂。 另一组分是一种稳定的聚丙烯酰胺，其通过以下步骤制备：（1）将乙二醛的第一部分与具有侧酰胺基团的聚丙烯酰胺反应以形成包含聚丙烯酰胺的第一反应混合物; （2）向第一反应混合物中加入酸以形成具有降低的pH并包含聚丙烯酰胺的第二反应混合物; 和（3）向第二反应混合物中加入乙二醛的第二部分以形成稳定的聚丙烯酰胺。 如果需要，可以在步骤（1），步骤（2），步骤（3）或稳定的聚丙烯酰胺中的一种或多种中包含醛清除剂。 这种组合物可用于增强纸的强度，特别是纸的湿强度。

    Resins with reduced epichlorohydrin hydrolyzates
    5.
    发明授权
    Resins with reduced epichlorohydrin hydrolyzates 失效
    具有减少的表氯醇水解产物的树脂

    公开(公告)号：US5256727A

    公开(公告)日：1993-10-26

    申请号：US876621

    申请日：1992-04-30

    申请人： Margaret A. Dulany ,  Clay E. Ringold

    发明人： Margaret A. Dulany ,  Clay E. Ringold

    IPC分类号： C08G69/42 ,  C08G73/02 ,  C08J3/03 ,  D21H17/46 ,  C08L77/06

    CPC分类号： C08J3/03 ,  C08G73/0286 ,  C08J2379/02

    摘要： Polyamidoamine-epichlorohydrin resin solutions with less than 1500 ppm of epichlorohydrin hydrolyzates after acid stabilization are produced by contacting the resin solution with either (a) dibasic phosphate salts having the general formula M.sub.2 HPO.sub.4 where M represents Na, K, or NH.sub.4, or (b) a nucleophilic alkanolamine at a temperature of less than about 50.degree. C. for a time sufficient to produce a product solution having, after stabilization with acid, less than 1500 ppm of epichlorohydrin hydrolyzates.

    摘要翻译： 或（b）通过使树脂溶液与（a）具有通式M2HPO4的磷酸二氢盐（M代表Na，K或NH 4）的（a）二磷酸盐接触来制备酸稳定后的具有小于1500ppm表氯醇水解产物的聚酰胺胺 - 表氯醇树脂溶液， 亲核链烷醇胺，其温度低于约50℃，时间足以产生在用酸稳定后小于1500ppm的表氯醇水解产物的产物溶液。

    Polyamidoamine-epihalohydrin resins, method of manufacture, and uses thereof
    6.
    发明授权
    Polyamidoamine-epihalohydrin resins, method of manufacture, and uses thereof 有权
    聚酰胺胺 - 表卤代醇树脂，其制造方法及其用途

    公开(公告)号：US08785593B2

    公开(公告)日：2014-07-22

    申请号：US13448982

    申请日：2012-04-17

    申请人： Karla D. Favors ,  Clay E. Ringold ,  Yuping Luo ,  Cornel Hagiopol

    发明人： Karla D. Favors ,  Clay E. Ringold ,  Yuping Luo ,  Cornel Hagiopol

    IPC分类号： C08F6/00 ,  C08G73/02

    CPC分类号： C08G73/0286

    摘要： 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).

    摘要翻译： 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）。

    Phosphoric acid quenched creping adhesive
    8.
    发明授权
    Phosphoric acid quenched creping adhesive 有权
    磷酸淬火起皱粘合剂

    公开(公告)号：US07718035B2

    公开(公告)日：2010-05-18

    申请号：US11081387

    申请日：2005-03-15

    申请人： Jeffery J. Boettcher ,  Nancy S. Clungeon ,  Hung Liang Chou ,  Clay E. Ringold ,  Dexter C. Johnson

    发明人： Jeffery J. Boettcher ,  Nancy S. Clungeon ,  Hung Liang Chou ,  Clay E. Ringold ,  Dexter C. Johnson

    IPC分类号： B31F1/12

    CPC分类号： D21H21/146 ,  D21H17/10 ,  D21H17/52 ,  D21H17/55 ,  D21H25/005

    摘要： An improved creping adhesive is prepared by first reacting a dibasic carboxylic acid, or its ester, half-ester, or anhydride derivative, with a polyalkylene polyamine, preferably in aqueous solution, under conditions suitable to produce a water soluble polyamide. The water-soluble polyamide is then reacted with an epihalohydrin until substantially fully cross-linked, and stabilized by acidification with phosphoric acid at the end of the polymerization reaction to form a water-soluble poly(aminoamide)-epihalohydrin creping adhesive that is re-wetable and facilitates water spray removal of buildup so as to lengthen the life of the creping blades, with attendant significant decrease in downtime and maintenance.

    摘要翻译： 通过首先使二元羧酸或其酯，半酯或酸酐衍生物与聚亚烷基多胺反应，优选在水溶液中，在适于生产水溶性聚酰胺的条件下进行改性来制备改进的起皱粘合剂。 然后将水溶性聚酰胺与表卤代醇反应直到基本完全交联，并在聚合反应结束时用磷酸酸化稳定，形成水溶性聚（氨基酰胺） - 表卤醇起皱粘合剂， 可润湿并促进水喷雾去除，从而延长起皱刀片的使用寿命，同时显着降低停机时间和维护时间。

    POLYAMIDOAMINE-EPIHALOHYDRIN RESINS, METHOD OF MANUFACTURE, AND USES THEREOF
    9.
    发明申请
    POLYAMIDOAMINE-EPIHALOHYDRIN RESINS, METHOD OF MANUFACTURE, AND USES THEREOF 有权
    聚氨基甲酸乙烯酯树脂，其制造方法及其用途

    公开(公告)号：US20120271008A1

    公开(公告)日：2012-10-25

    申请号：US13448982

    申请日：2012-04-17

    申请人： Karla D. Favors ,  Clay E. Ringold ,  Yuping Luo ,  Cornel Hagiopol

    发明人： Karla D. Favors ,  Clay E. Ringold ,  Yuping Luo ,  Cornel Hagiopol

    IPC分类号： C08L77/06

    CPC分类号： C08G73/0286

    摘要： 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).

    摘要翻译： 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）。

    Phosphoric Acid Quenched Creping Adhesive
    10.
    发明申请
    Phosphoric Acid Quenched Creping Adhesive 审中-公开
    磷酸淬火起皱粘合剂

    公开(公告)号：US20100184902A1

    公开(公告)日：2010-07-22

    申请号：US12749586

    申请日：2010-03-30

    申请人： Jeffery J. Boettcher ,  Nancy S. Clungeon ,  Hung Liang Chou ,  Clay E. Ringold ,  Dexter C. Johnson

    发明人： Jeffery J. Boettcher ,  Nancy S. Clungeon ,  Hung Liang Chou ,  Clay E. Ringold ,  Dexter C. Johnson

    IPC分类号： C08K3/32

    CPC分类号： D21H21/146 ,  D21H17/10 ,  D21H17/52 ,  D21H17/55 ,  D21H25/005

    摘要： An improved creping adhesive is prepared by first reacting a dibasic carboxylic acid, or its ester, half-ester, or anhydride derivative, with a polyalkylene polyamine, preferably in aqueous solution, under conditions suitable to produce a water soluble polyamide. The water-soluble polyamide is then reacted with an epihalohydrin until substantially fully cross-linked, and stabilized by acidification with phosphoric acid at the end of the polymerization reaction to form a water-soluble poly(aminoamide)-epihalohydrin creping adhesive that is re-wetable and facilitates water spray removal of buildup so as to lengthen the life of the creping blades, with attendant significant decrease in downtime and maintenance.

    摘要翻译： 通过首先使二元羧酸或其酯，半酯或酸酐衍生物与聚亚烷基多胺反应，优选在水溶液中，在适于生产水溶性聚酰胺的条件下进行改性来制备改进的起皱粘合剂。 然后将水溶性聚酰胺与表卤代醇反应直到基本完全交联，并在聚合反应结束时用磷酸酸化稳定，形成水溶性聚（氨基酰胺） - 表卤醇起皱粘合剂， 可润湿并促进水喷雾去除，从而延长起皱刀片的使用寿命，同时显着降低停机时间和维护时间。