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
    • 6. 发明公开
    • Use of hydrophilic dispersion polymers for coated broke treatment
    • Verwendung von亲水分散体聚合物zur Behandlung von wiedergewonnenem Papier mitÜberzug
    • EP0821099A1
    • 1998-01-28
    • EP97112515.8
    • 1997-07-22
    • NALCO CHEMICAL COMPANY
    • Wong Shing, Jane B.
    • D21C5/02D21C9/08C08F220/56
    • D21C9/086D21C5/022Y02W30/648
    • A process for treating recycled coated broke which has been re-pulped to a slurry for the purpose of recycling the coated broke as cellulose fiber to the paper machine by the addition of a water-soluble polymer dispersion is claimed. The water-soluble polymer is formed by polymerizing a water-soluble mixture which comprises: (a) a cationic monomer represented by the following general formula (I):
      wherein R 1 is H or CH 3 ; each of R 2 and R 3 is an alkyl group having 1 to 2 carbon atoms; R 4 is H or an alkyl group of 1 to 2 carbon atoms; A' is an oxygen atom or NH; B' is an alkylene group of 2 to 4 carbon atoms or a hydroxypropylene group; and X - is an anionic counterion; and (b) a second monomer represented by (meth)acrylamide (in an aqueous solution of a polyvalent anionic salt), wherein the polymerization is carried out in the presence of either an organic high-molecular weight multivalent cation comprising a water-soluble polymer containing at least one monomer of formula (I) and/or poly diallyl dimethyl ammonium chloride (DADMAC).
    • 一种用于处理再循环的涂覆断裂的方法,其已经重新制浆到浆料中,以通过添加水溶性聚合物分散体将纤维素纤维再循环到造纸机上。 水溶性聚合物通过聚合水溶性混合物而形成,该混合物包含:(a)由以下通式(I)表示的阳离子单体:其中R 1为H或CH 3; R2和R3各自为具有1至2个碳原子的烷基; R4是H或1〜2个碳原子的烷基; A'是氧原子或NH; B'是2至4个碳原子的亚烷基或羟基亚丙基; 而X - 为阴离子抗衡离子; 和(b)由(甲基)丙烯酰胺(在多价阴离子盐的水溶液中)表示的第二单体,其中聚合在有机高分子量多价阳离子的存在下进行,所述有机高分子量多价阳离子包含水溶性聚合物 含有至少一种式(I)的单体和/或聚二烯丙基二甲基氯化铵(DADMAC)。
    • 7. 发明公开
    • Improved papermaking process
    • 苦涩的Papierherstellungsverfahren
    • EP0805234A2
    • 1997-11-05
    • EP97107188.1
    • 1997-04-30
    • NALCO CHEMICAL COMPANY
    • Nagarajan, RamasubramanyamWong Shing, Jane B.
    • D21H23/14
    • D21H23/14D21H17/37D21H17/375D21H17/455D21H17/675D21H17/68
    • The claimed invention comprises a papermaking process comprising forming an aqueous cellulosic papermaking slurry, subjecting the slurry to one or more shear stages, adding to the slurry a mineral filler prior to at least one of the shear stages, adding to the slurry after the addition of the mineral filler and prior to at least one of the shear stages an effective amount of a dispersion polymer selected from the group consisting of copolymers of acrylamide and dimethylaminoethylacrylate methyl chloride quaternary salt (DMAEA.MCQ), dimethylaminoethylmethacrylate methyl chloride quaternary salt (DMAEM.MCQ), dimethylaminoethylacrylate benzyl chloride quaternary salt (DMAEA.BCQ) and dimethylaminoethylmethacrylate benzyl chloride quaternary salt (DMAEM.BCQ) and diallyldimethylammonium chloride (DADMAC), shearing the slurry, adding a microparticle selected from the group consisting of organics such as copolymers of polyacrylic acid, inorganics such as bentonite and silica sol, draining the slurry to form a sheet, and drying the sheet to form a paper sheet.
    • 要求保护的发明包括造纸方法,包括形成水性纤维素造纸浆料,使浆料经历一个或多个剪切阶段,在至少一个剪切阶段之前向矿浆中加入矿物填料,在加入 矿物填料,并且在至少一个剪切阶段之前有效量的选自丙烯酰胺和丙烯酸二甲基氨基乙基酯甲基氯季铵盐(DMAEA.MCQ)的共聚物,甲基丙烯酸二甲基氨基乙酯甲基氯化物季盐(DMAEM.MCQ ),二甲基氨基乙基丙烯酸酯苄基氯季铵盐(DMAEA.BCQ)和甲基丙烯酸二甲基氨基乙酯苄基氯季铵盐(DMAEM.BCQ)和二烯丙基二甲基氯化铵(DADMAC),剪切该浆料,加入选自有机物如聚丙烯酸共聚物 无机物如膨润土和硅溶胶,排出 浆料以形成片材,并干燥片材以形成纸张。