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    • 18. 发明授权
    • Antifoams based on oil-in-water emulsions for the paper industry
    • 基于造纸工业的水包油乳液的消泡剂
    • US5700351A
    • 1997-12-23
    • US379442
    • 1995-02-06
    • Rudolf SchuhmacherGabriele Dralle-VossKnut OppenlaenderBrigitte WegnerAndreas Hohmann
    • Rudolf SchuhmacherGabriele Dralle-VossKnut OppenlaenderBrigitte WegnerAndreas Hohmann
    • D21H17/14D21H19/44D21H21/12B01D19/04
    • B01D19/0404D21H17/14D21H21/12
    • 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.
    • 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。
    • 20. 发明授权
    • Antifoams for the paper industry, based on oil-in-water emulsions
    • 用于造纸工业的消泡剂,基于水包油乳液
    • US5326499A
    • 1994-07-05
    • US933191
    • 1992-08-20
    • Brigitte WegnerKnut OppenlaenderRudolf SchuhmacherAndreas HohmannGabriele Dralle-Vos
    • Brigitte WegnerKnut OppenlaenderRudolf SchuhmacherAndreas HohmannGabriele Dralle-Vos
    • B01F17/00B01F17/42B01J13/00D21C3/28D21D1/20D21H17/00D21H17/14D21H21/12B01D19/04
    • D21H21/12B01D19/0404D21H17/00D21H17/14
    • Antifoams for the paper industry are based on oil-in-water emulsions in which the oil phase accounts for from 5 to 50% by weight of the emulsion and contains(a) an alcohol of not less than 12 carbon atoms, fatty esters of alcohols of not less than 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 the oxo synthesis or by the Ziegler method and which may be alkoxylated, a mixture of the stated compounds and/or(b) a fatty ester of a C.sub.12 -C.sub.22 -carboxylic acid with a monohydric to trihydric C.sub.1 -C.sub.18 -alcohol and, if required,(c) a hydrocarbon having a boiling point above 200.degree. C. or a fatty acid of 12 to 22 carbon atoms,in combination with(d) from 1 to 80% by weight of polyglyceryl esters which can be prepared by not less than 20% esterification of a polyglycerol mixture which contains, as essential components, di-, tri- and tetraglycerol and, if required, polyglycerols having higher degrees of condensation with saturated or unsaturated C.sub.12 -C.sub.36 -fatty acids.
    • 用于造纸工业的消泡剂基于水包油乳液,其中油相占乳液的5至50重量%,并且包含(a)不少于12个碳原子的醇,醇的脂肪醇 不少于22个碳原子和C 1 -C 36羧酸,可通过氧代合成或通过齐格勒方法制备具有相对较多碳原子的醇而可获得的可被烷氧基化的蒸馏残余物,混合物 的所述化合物和/或(b)C12-C22-羧酸与一元至三元C 1 -C 18醇的脂肪酯,如果需要,(c)沸点高于200℃的烃。 或12至22个碳原子的脂肪酸,与(d)1至80重量%的聚甘油酯组合,其可以通过不少于20%的聚甘油混合物的酯化制备,所述聚甘油混合物含有作为必需组分的二 - 三甘油和四甘油,如果需要,聚甘油 与饱和或不饱和的C 12 -C 36脂肪酸具有较高的缩合度。