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    ANTIFOAMING AGENTS FOR THE PAPER INDUSTRY, BASED ON OIL IN WATER EMULSIONS
    2.
    发明申请
    ANTIFOAMING AGENTS FOR THE PAPER INDUSTRY, BASED ON OIL IN WATER EMULSIONS 有权
    纸浆工业用防水剂，以水乳液为基础

    公开(公告)号：US20160265162A1

    公开(公告)日：2016-09-15

    申请号：US15035959

    申请日：2014-11-17

    Applicant: BASF SE

    Inventor： Holger KERN ,  Christoph HAMERS ,  Klaus MÖLLER ,  Uwe ALBRECHT

    IPC: D21H21/12 ,  B01D19/04 ,  D21H17/04 ,  D21H17/06 ,  D21H17/14

    CPC classification number: D21H21/12 ,  B01D19/0404 ,  C11D3/0026 ,  D21C3/28 ,  D21H17/04 ,  D21H17/06 ,  D21H17/14

    Abstract: The present invention which provides antifoaming agents for the paper industry, based on oil-in-water emulsions, in which the oil phase accounts for from 5 to 50% by weight of the emulsion if the oil phase of the emulsions contains (a) an alcohol of not less than 12 carbon atoms, fatty esters of alcohols of not less than 22 carbon atoms and C1-C36-carboxylic acids, distillation residues which are obtainable in the preparation of alcohols having a relatively large number of carbon atoms by the oxo synthesis or by the Ziegler method and which may furthermore be alkoxylated, a mixture of the stated compounds and (b) optionally a fatty ester of a C12-C22-carboxylic acid with a monohydric to trihydric C1-C18-alcohol and, (c) optionally a hydrocarbon having a boiling point above 200° C. or a fatty acid of 12 to 22 carbon atoms, in combination with from 1 to 80% by weight of component (d) comprising (d1) polyglyceryl esters which are obtainable by not less than 20% esterification of a polyglycerol mixture of from 0 to 10% by weight of monoglycerol, from 15 to 40% by weight of diglycerol, from 30 to 55% by weight of triglycerol, from 10 to 25% by weight of tetraglycerol, from 0 to 15% by weight of pentaglycerol, from 0 to 10% by weight of hexaglycerol and from 0 to 5% by weight of polyglycerols having higher degrees of condensation with one or more fatty acids of 12 to 36 carbon atoms; and (d2) C18-C30 alkyl behenate. The antifoaming agents can be used for preventing foam in pulp cooking, in the beating of paper stock, in papermaking and in the dispersing of pigments for papermaking. Further, the anti-foaming agents can be used for preventing foam in paper stocks.

    Abstract translation: 提供造纸工业消泡剂的本发明是基于水包油乳液，其中油相占乳液的5至50重量％，如果乳液的油相含有（a） 不小于12个碳原子的醇，不少于22个碳原子的醇的脂肪酯和C 1 -C 36羧酸，可通过羰基合成制备具有相对较多碳原子的醇获得的蒸馏残余物 或者通过齐格勒方法进一步被烷氧基化，所述化合物和（b）任选的C 12 -C 22羧酸的脂肪酯与一价至三元C 1 -C 18醇的混合物，和（c）任选地 沸点高于200℃的碳氢化合物或12-22个碳原子的脂肪酸，以及1至80重量％的组分（d）的组合物，其包含（d1）聚甘油酯，其可通过不少于 20％聚乙二醇的酯化 0至10重量％的单甘油，15至40重量％的双甘油，30至55重量％的甘油三酯，10至25重量％的四甘油，0至15重量％的甘油混合物 的五甘油，0至10重量％的六甘油和0至5重量％的与一种或多种12至36个碳原子的脂肪酸具有较高缩合度的聚甘油; 和（d2）C 18 -C 30烷基山嵛酸酯。 消泡剂可用于防止纸浆蒸煮中的泡沫，纸浆的打浆，造纸中的分散和用于造纸的颜料的分散。 此外，消泡剂可用于防止纸料中的泡沫。

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