Polyester for the paper industry
    1.
    发明授权

    公开(公告)号:US09809929B2

    公开(公告)日:2017-11-07

    申请号:US14421601

    申请日:2013-08-03

    摘要: The invention relates to the use of polyesters for increasing the surface tension and improving the hydrophilic behavior of hydrophobic surfaces, wherein said polyesters are obtainable by polymerization of a) one or more unsulfonated aromatic dicarboxylic acids and/or salts thereof and/or anhydrides thereof and/or esters thereof, and b) ethylene glycol, c) 1,2-propylene glycol, and d) one or more polyalkylene glycols, and e) one or more compounds of formula (1) R1O(CHR2CHR3O)nH  (1) where R1 is a linear or branched, saturated or unsaturated alkyl group of 1 to 22 carbon atoms, preferably methyl, R2 and R3 are each independently hydrogen or an alkyl group of 1 to 4 carbon atoms, preferably hydrogen and/or methyl, and n is from 1 to 50, f) in the presence or absence of one or more crosslinking compounds having 3 to 6 functions capable of polycondensation, especially acid, alcohol or ester functions, with the proviso that said components d) are used in weight quantities

    POLYESTER FOR THE PAPER INDUSTRY
    2.
    发明申请
    POLYESTER FOR THE PAPER INDUSTRY 有权
    纸业专业人士

    公开(公告)号:US20150204018A1

    公开(公告)日:2015-07-23

    申请号:US14421601

    申请日:2013-08-03

    IPC分类号: D21H17/53 D21H11/14

    摘要: The invention relates to the use of polyesters for increasing the surface tension and improving the hydrophilic behavior of hydrophobic surfaces, wherein said polyesters are obtainable by polymerization of a) one or more unsulfonated aromatic dicarboxylic acids and/or salts thereof and/or anhydrides thereof and/or esters thereof, and b) ethylene glycol, c) 1,2-propylene glycol, and d) one or more polyalkylene glycols, and e) one or more compounds of formula (1) R1O(CHR2CHR3O)nH  (1) where R1 is a linear or branched, saturated or unsaturated alkyl group of 1 to 22 carbon atoms, preferably methyl, R2 and R3 are each independently hydrogen or an alkyl group of 1 to 4 carbon atoms, preferably hydrogen and/or methyl, and n is from 1 to 50, f) in the presence or absence of one or more crosslinking compounds having 3 to 6 functions capable of polycondensation, especially acid, alcohol or ester functions, with the proviso that said components d) are used in weight quantities

    摘要翻译: 本发明涉及聚酯用于增加表面张力并提高疏水性表面的亲水性能,其中所述聚酯可通过以下方法获得:a)一种或多种未磺化的芳族二羧酸和/或其盐和/或其酸酐和 或其酯,和b)乙二醇,c)1,2-丙二醇,和d)一种或多种聚亚烷基二醇,和e)一种或多种式(1)化合物R 1 O(CHR 2 CHR 3 O)n H(1)其中 R1是1-22个碳原子的直链或支链饱和或不饱和的烷基,优选甲基,R2和R3各自独立地是氢或1-4个碳原子的烷基,优选氢和/或甲基,n是 1至50,f)在存在或不存在一种或多种具有3至6个能够缩聚,特别是酸,醇或酯官能团的功能的交联化合物的情况下,条件是所述组分d)的用量为<80 %, 基于 通过聚合获得的聚酯的重量。

    Method for Reducing Negative Effects of Natural Pitch Contaminants in Both Pulping and Papermaking Operations
    3.
    发明申请
    Method for Reducing Negative Effects of Natural Pitch Contaminants in Both Pulping and Papermaking Operations 审中-公开
    减少造纸和造纸操作中天然间距污染物负面影响的方法

    公开(公告)号:US20150027652A1

    公开(公告)日:2015-01-29

    申请号:US14384747

    申请日:2013-03-09

    IPC分类号: D21H17/37

    摘要: The instant invention relates to a method for inhibiting pitch deposition on pulping and papermaking equipment or machinery comprising adding to a pulp slurry containing pitch an effective amount of polymer dispersion comprising a component A and a component B, wherein component A being a homopolymer and/or copolymer of acrylic acid and/or its alkyl esters, or methacrylic acid and/or its alkyl esters, styrene and/or methylstyrene, vinyl acetate, itaconic acid, glycidyl methacrylate, 2-hydroxyalkyl (meth)acrylate, methacrylamide, N-hydroxyethyl(meth)acrylamide, dimethacrylate monomers, 1,3-butylene glycol dimethacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, propylene glycol dimethacrylate, dipropylene glycol dimethacrylate, 4-methyl-1,4-pentanediol dimethacrylate, divinylbenzene and/or trivinylbenzene, and component B being an aqueous solution of a styrene copolymer with acrylic acid, maleimide and/or maleic anhydride.

    摘要翻译: 本发明涉及一种用于抑制制浆和造纸设备或机械上的沥青沉积的方法,包括向含有沥青的纸浆中添加有效量的包含组分A和组分B的聚合物分散体,其中组分A是均聚物和/或 丙烯酸和/或其烷基酯或甲基丙烯酸和/或其烷基酯,苯乙烯和/或甲基苯乙烯,乙酸乙烯酯,衣康酸,甲基丙烯酸缩水甘油酯,2-羟烷基(甲基)丙烯酸酯,甲基丙烯酰胺,N-羟乙基( 甲基丙烯酸酯单体,二甲基丙烯酸酯单体,二甲基丙烯酸1,3-丁二醇酯,二甲基丙烯酸乙二醇酯,二甲基丙烯酸二甘醇酯,二甲基丙烯酸丙二醇酯,二甲基丙烯酸二丙二醇酯,二甲基丙烯酸4-甲基-1,4-戊二醇酯,二乙烯基苯和/或三乙烯基苯, B是苯乙烯共聚物与丙烯酸,马来酰亚胺和/或马来酸酐的水溶液。