Anti-foaming agents, the preparation thereof, and their use in aqueous
systems
    3.
    发明授权
    Anti-foaming agents, the preparation thereof, and their use in aqueous systems 失效
    消泡剂,其制备方法及其在含水体系中的用途

    公开(公告)号:US4339342A

    公开(公告)日:1982-07-13

    申请号:US250683

    申请日:1981-04-03

    IPC分类号: B01D19/04 C11D3/12 C11D3/20

    摘要: This invention is directed to a method for preparing foam inhibitors for aqueous systems, which comprises the steps of:(a) mixing a higher-molecular branched-chain primary alcohol or from about 18 to 30 carbon atoms with hydrophobic colloidal silica in an alcohol to silica ratio of from about 100:2 to 100:20;(b) heating the mixture from step (a) under stirring to temperatures of from about 100.degree. to 240.degree. C.; and(c) allowing the heated mixture from step (b) to cool to room temperature.This invention is also directed to the suds regulators prepared and their use in aqueous detergent systems.

    摘要翻译: 本发明涉及一种制备含水体系的泡沫抑制剂的方法,其包括以下步骤:(a)将高分子支链伯醇或约18至30个碳原子与醇中的疏水胶态二氧化硅混合, 二氧化硅比例为约100:2至100:20; (b)在搅拌下将来自步骤(a)的混合物加热至约100至240℃的温度; 和(c)使来自步骤(b)的加热混合物冷却至室温。 本发明还涉及制备的泡沫调节剂及其在含水洗涤剂体系中的用途。

    Organopolysiloxane anti-foaming agents
    4.
    发明授权
    Organopolysiloxane anti-foaming agents 失效
    有机聚硅氧烷消泡剂

    公开(公告)号:US4504410A

    公开(公告)日:1985-03-12

    申请号:US389261

    申请日:1982-06-17

    摘要: Organopolysiloxanes of the formula:(CH.sub.3).sub.3 Si--(OSiCH.sub.3 R.sup.1).sub.a --(OSiCH.sub.3 R.sup.2).sub.b --OSi(CH.sub.3).sub.3wherein R.sup.1 is a C.sub.6 -C.sub.10 alkyl group and R.sup.2 is the group--(CH.sub.2).sub.d COO (CH.sub.2 CHZ--O).sub.e --R.sup.3 ; and wherein R.sup.3 is a C.sub.1 -C.sub.6 alkyl group, Z is hydrogen or methyl, a is the whole number 28 to 36, b is the whole number 5 to 12, d is the whole number 8 to 12, and e is the whole number 1 to 24. These organopolysiloxanes are useful as antifoaming agents and are especially useful in aqueous paint compositions.

    摘要翻译: 式(CH3)3Si-(OSiCH3R1)a-(OSiCH3R2)b-OSi(CH3)3的有机聚硅氧烷,其中R1是C6-C10烷基,R2是基团 - (CH2)dCOO(CH2CHZ-O)e -R3; 其中R3为C1-C6烷基,Z为氢或甲基,a为整数28至36,b为整数5至12,d为整数8至12,e为整数 这些有机聚硅氧烷可用作消泡剂,特别适用于水性涂料组合物。

    Powdery antifoaming compositions for aqueous systems, their preparation
and use
    5.
    发明授权
    Powdery antifoaming compositions for aqueous systems, their preparation and use 失效
    用于水系统的粉末消泡组合物,其制备和用途

    公开(公告)号:US4421666A

    公开(公告)日:1983-12-20

    申请号:US357574

    申请日:1982-03-12

    IPC分类号: B01D19/04 C11D3/00 C11D3/12

    摘要: A free-flowing, substantially silicone-free, powdery antifoaming composition for use in aqueous systems comprised of:(a) a liquid homogeneous mixture of a branched-chain primary C.sub.16 -C.sub.30 alcohol and hydrophobic-reacting colloidal silicic acid with a ratio by weight of alcohol:silicic acid of 100:2 to 100:20, as obtained by heating to 100.degree. to 240.degree. C. with agitation for a time sufficient to obtain a homogeneous mixture,(b) a water-insoluble wax in a ratio by weight of (a):(b) of from 3:1 to 1:3, and(c) a water-soluble powdered carrier where the components (a) and (b) are present on the carrier in homogeneous distribution, the powdered carrier being present in such an amount that a free-flowing product results.The primary alcohol of component (a) is preferably a Guerbet alcohol of the formula: ##STR1## A natural or synthetic paraffin wax or mixture of waxes with a congealing point in the range of 40.degree. to 120.degree. C. is used preferably as the wax (b). The carrier (c) is a salt that is compatible with the aqueous system, especially an alkali metal salt from the group of the phosphates, the polymeric phosphates, the borates, carbonates, silicates, sulfates or their mixtures, preferably sodium tripolyphosphate. The product is prepared by mixing the liquid alcohol/silicic acid mixture (a) with the wax (b) and the carrier (c) at temperatures above the congealing point of the wax, cooling of the homogeneous mixture to room temperature with continued mixing and crushing into a free-flowing powder. The antifoaming agent is preferably used in washing and cleaning products in amounts from 0.15% to 15% by weight.

    摘要翻译: 一种用于水性体系的自由流动的,基本上无硅氧烷的粉末状消泡组合物,其包含:(a)支链原C16-C30醇和疏水反应胶体硅酸的液体均匀混合物,其重量比 的醇:100:1至100:20的硅酸,通过在搅拌下加热至100至240℃获得均匀混合物的时间获得,(b)水不溶性蜡的比例为 (a)(b)的重量为3:1至1:3,和(c)组分(a)和(b)以均匀分布存在于载体上的水溶性粉末载体,粉末状 载体以使得产生自由流动的产物的量存在。 组分(a)的伯醇优选是下式的格尔伯特醇:其中R = C 4 -C 16烷基。 优选使用天然或合成石蜡或蜡与硬化点在40至120℃范围内的混合物作为蜡(b)。 载体(c)是与水系统相容的盐,特别是来自磷酸盐,聚合磷酸盐,硼酸盐,碳酸盐,硅酸盐,硫酸盐或其混合物,优选三聚磷酸钠的碱金属盐。 通过在高于蜡凝结点的温度下将液体醇/硅酸混合物(a)与蜡(b)和载体(c)混合制备产物,将均匀混合物冷却至室温,继续混合, 粉碎成自由流动的粉末。 消泡剂优选以0.15重量%至15重量%的量洗涤和清洁产品。

    Foam inhibitor useful in synthetic resin, lacquer, and paint dispersions
    6.
    发明授权
    Foam inhibitor useful in synthetic resin, lacquer, and paint dispersions 失效
    用于合成树脂,漆和油漆分散体的泡沫抑制剂

    公开(公告)号:US4384976A

    公开(公告)日:1983-05-24

    申请号:US246109

    申请日:1981-03-20

    摘要: This invention relates to a foam inhibiting composition comprising:(a) from about 3 to 10 percent by weight of a polysiloxane-polyether block polymer of the formula ##STR1## wherein m is 0 or 1, n is a number of from 0 to 2, x is a number of from 20 to 100, and y is a number of from 5 to 30;(b) from about 65 to 85 percent by weight of a water-immisible oily substance selected from the group consisting of mineral oils, fatty oils, and fatty alcohols;(c) from about 5 to 30 percent by weight of at least one additional substance with a foam-inhibiting effect selected from the group consisting of polypropylene glycol-polyethylene glycol block polymers with a molecular weight of from about 1000 to 4000, their monoesters or diesters with fatty acids and hydroxy-fatty acids containing from 18 to 24 carbon atoms, and the monoesters and diesters of said fatty acids and hydroxy-fatty acids with hydroxystearyl alcohol;(d) from about 1 to 6 percent by weight of at least one emulsifying agent selected from the group consisting of polyglycol ether derivatives containing from 4 to 12 ethylene glycol ether groups adducted onto alkanols or alkenols with from 12 to 20 carbon atoms or alkylphenols with from 8 to 12 alkylcarbon atoms; and(e) from about 1 to 5 percent by weight of at least one alkaline earth metal soap or aluminum soap of fatty acid containing from 16 to 20 carbon atoms,based on the weight of the total composition, and the use of said composition in aqueous dispersions of synthetic resins, lacquers, and paints.

    摘要翻译: 本发明涉及泡沫抑制组合物,其包含:(a)约3-10重量%的下式的聚硅氧烷 - 聚醚嵌段聚合物:其中m为0或1,n为 0至2的数,x为20至100的数,y为5至30的数; (b)约65至85重量%的选自矿物油,脂肪油和脂肪醇的水不溶性油状物质; (c)约5至30重量%的至少一种具有泡沫抑制作用的另外的物质,其选自分子量为约1000至4000的聚丙二醇 - 聚乙二醇嵌段聚合物,它们的单酯或 含有18-24个碳原子的脂肪酸和羟基脂肪酸的二酯,所述脂肪酸和羟基脂肪酸与羟基硬脂醇的单酯和二酯; (d)约1至6重量%的至少一种乳化剂,其选自含有4至12个加成到具有12至20个碳原子的链烷醇或链烯醇上的乙二醇醚基团的聚乙二醇醚衍生物或烷基酚与 8至12个烷基碳原子; 和(e)约1至5重量%的至少一种碱土金属皂或含有16至20个碳原子的脂肪酸的铝皂,基于总组合物的重量,以及所述组合物在 合成树脂,漆和油漆的水性分散体。

    Process for the production of silanes from oleic acid esters
    8.
    发明授权
    Process for the production of silanes from oleic acid esters 失效
    从油酸酯生产硅烷的方法

    公开(公告)号:US4176127A

    公开(公告)日:1979-11-27

    申请号:US959944

    申请日:1978-11-13

    CPC分类号: C07F7/14

    摘要: In the process for the production of a long chain silane consisting essentially of reacting a hydrogen silane with a commercial oleic acid ester with a lower alkanol in the presence of a catalyst, at a temperature above 50.degree. C. and recovering said long chain silane, the improvement consisting essentially of utilizing a commercial oleic acid ester with a lower alkanol containing less than 4% by weight of poly-unsaturated compounds, as said oleic acid ester.

    摘要翻译: 在生产长链硅烷的方法中,主要由氢硅烷与市售油酸酯与低级烷醇在催化剂存在下,在高于50℃的温度下反应并回收所述长链硅烷, 所述改进主要由利用具有低于4重量%的多不饱和化合物的低级链烷醇的市售油酸酯作为所述油酸酯。