Antifoams based on oil-in-water emulsions for the paper industry
    7.
    发明授权
    Antifoams based on oil-in-water emulsions for the paper industry 失效
    基于造纸工业的水包油乳液的消泡剂

    公开(公告)号:US5700351A

    公开(公告)日:1997-12-23

    申请号:US379442

    申请日:1995-02-06

    摘要: Antifoams based on oil-in-water emulsions, in which the oil phase accounts for from 5 to 50% by weight of the emulsions and consists essentially of a mixture of (a) fatty esters of C.sub.12 -C.sub.22 -carboxylic acids with monohydric to trihydric C.sub.1 -C.sub.22 -alcohols, (b) polyglyceryl esters which are obtainable by at least 20% esterification of polyglycerols which contain at least 2 glyceryl units with at least one C.sub.12 -C.sub.36 -fatty acid and (c) fatty esters of C.sub.12 -C.sub.22 -carboxylic acids and polyalkylene glycols, the molecular weight of the polyalkylene glycols being up to 5,000 g/mol, and, if required, (d) long-chain alcohols, fatty esters of alcohols of at least 22 carbon atoms and C.sub.1 -C.sub.36 -carboxylic acids, distillation residues which are obtainable in the preparation of alcohols having a relatively large number of carbon atoms by oxo synthesis or by the Ziegler process and which may be alkoxylated, and/or (e) hydrocarbons having a boiling point above 200.degree. C. or fatty acids of 12 to 22 carbon atoms, are used for controlling foam in pulp digestion, in the beating of paper stock, in papermaking and in the dispersing of pigments for papermaking.

    摘要翻译: PCT No.PCT / EP93 / 02531 Sec。 371日期:1995年2月6日 102(e)日期1995年2月6日PCT 1993年9月18日PCT公布。 出版物WO94 / 08091 日期1994年04月14日基于水包油乳液的消泡剂,其中油相占乳液的5至50重量%,基本上由(a)C12-C22-羧酸的脂肪酯 具有一元至三元C 1 -C 22醇的酸,(b)聚甘油酯,其可通过至少20%含有至少2个甘油基单元与至少一种C 12 -C 36脂肪酸酯化的聚甘油酯化,和(c)脂肪酸酯 的C 12 -C 22羧酸和聚亚烷基二醇,聚亚烷基二醇的分子量高达5,000g / mol,如果需要,(d)长链醇,至少22个碳原子的醇的脂肪酸酯和 C1-C36-羧酸,可通过氧代合成或通过齐格勒方法制备具有相对大量碳原子的醇并可被烷氧基化得到的蒸馏残余物,和/或(e)具有沸点的烃 高于200℃或12至22的脂肪酸 碳原子,用于控制纸浆消化中的泡沫,纸浆的打浆,造纸和分散造纸用颜料。

    Preparation of ether sulfonates and polyglycol ether sulfonates, and
products prepared by this method
    10.
    发明授权
    Preparation of ether sulfonates and polyglycol ether sulfonates, and products prepared by this method 失效
    醚磺酸盐和聚乙二醇醚磺酸盐的制备,以及通过该方法制备的产物

    公开(公告)号:US4978780A

    公开(公告)日:1990-12-18

    申请号:US405582

    申请日:1989-09-11

    CPC分类号: C07C309/00

    摘要: A process for the preparation of ether sulfonates or polyglycol ether sulfonates by reacting an organic alcoholic or phenolic compound or the corresponding alkoxylate in aqueous solution with vinyl sulfonate in the presence of from 0.1 to 3.0% by weight of an alkaline catalyst and, if required, additionally in the presence of a phase-transfer catalyst, and ether sulfonates or polyglycol ether sulfonates prepared by this process and of the general formulaR--O(C.sub.n H.sub.2n O).sub.z --CH.sub.2 CH.sub.2 SO.sub.3 Xwhere R is H or an aliphatic or aromatic hydrocarbon radical (which may contain nitrogen as a heteroatom) of 1 to 30 carbon atoms, n is from 2 to 30, z is from 0 to 300 and X is an alkali metal.

    摘要翻译: 一种通过使有机醇或酚类化合物或相应的烷氧基化物在水溶液中与乙烯基磺酸酯在0.1至3.0重量%的碱性催化剂存在下反应制备醚磺酸盐或聚乙二醇醚磺酸盐的方法, 另外在相转移催化剂存在下,通过该方法和通式RO(CnH2nO)z-CH2CH2SO3X制备的醚磺酸盐或聚乙二醇醚磺酸盐,其中R为H或脂族或芳族烃基(可含有氮 作为杂原子)为1〜30个碳原子,n为2〜30,z为0〜300,X为碱金属。