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319 条记录 (耗时 0.03 秒)

    Styrene copolymers in de-inking
    11.
    发明授权
    Styrene copolymers in de-inking 失效

    公开(公告)号：US06488808B2

    公开(公告)日：2002-12-03

    申请号：US09766480

    申请日：2001-01-19

    申请人： Duy T. Nguyen ,  Charles W. Hengst

    发明人： Duy T. Nguyen ,  Charles W. Hengst

    IPC分类号： D21C502

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： Provided herein are compositions of matter useful in de-inking secondary fibers. A composition according to the invention includes an aqueous solution of an anionic form of a styrene-methacrylic acid copolymer. When a surfactant is used in combination with the copolymers herein described in a de-inking operation, a synergy is observed in that the combination of copolymer and surfactant combination together yield a recycled fiber product having higher brightness level and a lower effective residual ink concentration than recycled fibers produced using either the copolymer or surfactant alone in the same operation.

    Flotation deinking process
    12.
    发明申请
    Flotation deinking process 失效
    浮选脱墨工艺

    公开(公告)号：US20020066880A1

    公开(公告)日：2002-06-06

    申请号：US09923595

    申请日：2001-08-07

    申请人： KAO Specialties Americas

    发明人： Peter Mitchell Robinson ,  Hugh Lavery

    IPC分类号： B03D001/00

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： The removal of inks from a pulp fiber slurry is accomplished by use of a combination of (1) a polyester obtained through reaction between di and/or tricarboxylic acids and/or anhydrides thereof and a polyalkylene glycol or one or more alkylene oxides, (2) a first deinking agent which is an alkoxylated hydrophobic base, e.g. an alcohol, amine, acid, dimer acid, salts thereof, or the like, and (3) a second deinking agent which is a second alkoxylated hydrophobic base having a cloud point about 2 to 20null lower than the cloud point of the first deinking agent. Use of the three component combination allows an improved foam profile allowing longer continuous operation or one or more of a reduction in total chemical demand, optical bleach demand, and stickies.

    摘要翻译： 从纸浆纤维浆料中除去油墨是通过使用（1）通过二 - 和/或三羧酸和/或其酸酐与聚亚烷基二醇或一种或多种烯化氧反应得到的聚酯（2） ）第一脱墨剂，其为烷氧基化疏水基，例如 醇，胺，酸，二聚酸，其盐等，和（3）第二脱墨剂，其是具有比第一脱墨的浊点低约2至20°的浊点的第二烷氧基化疏水基 代理商 三组分组合的使用允许改进的泡沫分布允许更长的连续操作或总化学需求，光学漂白剂需求和粘性的减少中的一种或多种。

    Wastepaper deinking method using amine or acid salt of amine in the flotation stage
    13.
    发明授权
    Wastepaper deinking method using amine or acid salt of amine in the flotation stage 失效
    在浮选阶段使用胺或胺的酸盐进行废纸脱墨方法

    公开(公告)号：US06251220B1

    公开(公告)日：2001-06-26

    申请号：US08894715

    申请日：1997-08-26

    申请人： Yuichi Irinatsu ,  Yoshitaka Miyauchi ,  Hiromichi Takahashi

    发明人： Yuichi Irinatsu ,  Yoshitaka Miyauchi ,  Hiromichi Takahashi

    IPC分类号： D21C502

    CPC分类号： D21C5/027 ,  D21C5/025 ,  Y02W30/648

    摘要： A deinking method comprising the steps of liberating ink from waste paper as a raw material and removing the liberated ink from a flotation system, wherein a nonionic surfactant, e.g., a reaction product obtained by adding an alkylene oxide to a mixture of an oil & fat and an alcohol, an alkylene oxide adduct of a fatty acid, or an alkylene oxide adduct of a higher alcohol, is used for the liberation of ink, and the flotation step is effected in the presence of a cationic compound, an amine, an acid salt of an amine or an amphoteric compound at a pH of from 4 to 9, provides a high quality deinked pulp having a high whiteness and a little residual ink spots.

    摘要翻译： 一种脱墨方法，包括以下步骤：从作为原料的废纸中释放墨水，并从浮选系统中除去所释放的油墨，其中非离子表面活性剂，例如通过将烯化氧加入到油和油的混合物中获得的反应产物 并且使用醇，脂肪酸的烯化氧加合物或高级醇的烯化氧加成物，用于释放油墨，并且浮选步骤在阳离子化合物，胺，酸的存在下进行 胺或两性化合物的盐在pH为4至9时提供高质量脱墨纸浆，其具有高白度和少量残留油墨斑点。

    Froth moderating agent for controlling froth and reducing stickies in the flotation process for deinking waste paper
    15.
    发明授权
    Froth moderating agent for controlling froth and reducing stickies in the flotation process for deinking waste paper 失效
    用于在废纸脱墨的浮选过程中控制泡沫和减少粘性的泡沫调节剂

    公开(公告)号：US6013157A

    公开(公告)日：2000-01-11

    申请号：US887028

    申请日：1997-07-02

    申请人： Chin Li ,  David A. Longhini ,  Bhima R. Vijayendrar

    发明人： Chin Li ,  David A. Longhini ,  Bhima R. Vijayendrar

    IPC分类号： B03D1/008 ,  D21B1/32 ,  D21C5/02

    CPC分类号： D21C5/027 ,  B03D1/008 ,  D21B1/325 ,  Y02W30/646 ,  Y02W30/648 ,  Y10S162/03

    摘要： Describes flotation deinking of secondary fiber using a froth moderating agent, a composition of the froth moderating agent with flotation deinking chemicals, and reducing the amount of stickies in separated seconday fiber. The froth moderating agent is selected from the group consisting of:(a) nonionic surfactant material represented by the formula:R--C.sub.6 H.sub.4 O--(C.sub.2 H.sub.4 O).sub.m --(C.sub.3 H.sub.6 O).sub.n --(C.sub.4 H.sub.8 O).sub.p --R.sup.1 wherein R is an aliphatic hydrocarbon group containing from about 5 to 20 carbon atoms, R.sup.1 is selected from the group consisting of chloro, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.5 alkoxy and phenoxy, m, n, and p are each a number of between 0 and about 50, and the sum of m, n, and p is between about 1 and 50;(b) fatty acid esters of sorbitan;(c) certain alkoxylated fatty acid esters of sorbitan;(d) polypropylene glycol being at least 50 weight percent soluble in water; and(e) a combination of at least two of the materials selected from the group consisting of (a), (b), (c) and (d).Also described is the use of a froth controlling amount of nonionic surfactant material (a) alone or in combination with flotation deinking chemicals or other froth moderating agents in reducing the amount of stickies and enhancing the removal of electrostatic inks in the flotation deinking process.

    摘要翻译： 描述了使用泡沫调节剂的二次纤维的浮选脱墨，浮选脱墨化学品的泡沫缓和剂的组成，以及减少分离的第二纤维中的粘合剂的量。 泡沫缓和剂选自：（a）由式：R-C6H4O-（C2H4O）m-（C3H6O）n-（C4H8O）p-R1表示的非离子表面活性剂物质，其中R是脂族烃基 含有约5至20个碳原子，R 1选自氯，C 1 -C 3烷基，C 1 -C 5烷氧基和苯氧基，m，n和p各自为0至约50，并且 m，n和p的和为约1至50; （b）脱水山梨糖醇的脂肪酸酯; （c）脱水山梨醇的某些烷氧基化脂肪酸酯; （d）可溶于水的至少50重量％的聚丙二醇; 和（e）选自（a），（b），（c）和（d）中的至少两种材料的组合。 还描述了在浮选脱墨工艺中单独或与浮选脱墨化学品或其它泡沫调节剂组合使用泡沫控制量的非离子表面活性剂材料（a）来减少粘性物质的量和增强静电油墨的去除。

    Process for removing toners from photocopy paper using hydroxamate collectors
    19.
    发明授权
    Process for removing toners from photocopy paper using hydroxamate collectors 失效
    使用异羟肟酸盐收集器从复印纸中除去调色剂的方法

    公开(公告)号：US5635023A

    公开(公告)日：1997-06-03

    申请号：US517256

    申请日：1995-08-21

    申请人： Jerry L. Curtis

    发明人： Jerry L. Curtis

    IPC分类号： D21C5/02

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： A flotation process for removing toner particles from photocopied paper which utilizes the following compound as a collector: ##STR1## wherein R is an alkyl, aryl, alkylaryl or allyl group having from 4-28 carbon atoms and, preferably from 6-10 carbon atoms, and M represents an alkali metal, or alkaline earth metal radical or a hydrogen atom.

    摘要翻译： 用于从利用以下化合物作为收集器的复印纸中除去调色剂颗粒的浮选方法：其中R是具有4-28个碳原子，优选6-10个碳原子的烷基，芳基，烷基芳基或烯丙基 ，M表示碱金属或碱土金属基或氢原子。

    Process for removing waterborne flexographic inks from substrates
    20.
    发明授权
    Process for removing waterborne flexographic inks from substrates 失效
    从基材中除去水性柔版油墨的方法

    公开(公告)号：US5632857A

    公开(公告)日：1997-05-27

    申请号：US416417

    申请日：1995-04-04

    申请人： Eric H. Larson

    发明人： Eric H. Larson

    IPC分类号： D21C5/02

    CPC分类号： D21C5/027 ,  Y02W30/648

    摘要： A process for removing water borne flexographic inks from paper stock comprising the steps of (a) forming a slurry by pulping paper containing water borne flexographic inks in an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; (3) one or more anionic polyelectrolytes; and (4) an amount of paper different from that being processed which contains inorganic fillers, coatings or mixtures thereof; and (b) subjecting the slurry produced in step (a) to a flotation cell having an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; and (3) one or more anionic polyelectrolytes is provided.

    摘要翻译： 一种用于从纸料中除去水性柔性油墨的方法，包括以下步骤：（a）通过在pH大于8的水性介质中制浆含有水性柔版油墨的纸形成浆料，所述水性介质包括：（1）一种或多种碱 代理人 （2）一种或多种非离子表面活性剂; （3）一种或多种阴离子聚电解质; 和（4）与包含无机填料，涂料或其混合物的处理量不同的纸张量; 和（b）使步骤（a）中产生的浆料经历具有pH大于8的水介质的浮选槽，该浮选槽包括：（1）一种或多种碱性试剂; （2）一种或多种非离子表面活性剂; 和（3）提供一种或多种阴离子聚电解质。