Cationic sizing agent for paper, and a process for its preparation
    32.
    发明授权
    Cationic sizing agent for paper, and a process for its preparation 失效
    用于纸张的阳离子上胶剂及其制备方法

    公开(公告)号:US4659431A

    公开(公告)日:1987-04-21

    申请号:US691991

    申请日:1985-01-16

    Abstract: New, highly effective cationic sizing agents for paper have been provided. They can be obtained by a method in which a water-soluble cationic chemically pure terpolymer compound consisting of(a) 7-40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate,(b) 40-80% by weight of styrene and(c) 4-40% by weight of acrylonitrileis dissolved in an aqueous medium, the sum of the components (a) to (c) always being 100% by weight and at least 10% of the N,N-dimethylamino groups of the terpolymer being quaternized and the remainder being protonated, and, in the presence of 10 to 70% by weight, relative to the monomer mixture below, of this emulsifier,(d) 0 to 90% by weight of acrylonitrile and/or methacrylonitrile,(e) 5 to 95% by weight of styrene and(f) 5 to 95% by weight of acrylates and/or methacrylates having 1 to 12 C atoms in the alcohol radical,the sum of the components (d) to (f) always being 100% by weight, are emulsified, and the emulsion thus obtained is subjected to free radical-initiated emulsion polymerization at temperatures from 20.degree. to 150.degree. C.

    Abstract translation: 已经提供了用于纸的新的高效阳离子上胶剂。 它们可以通过以下方法获得:其中由(a)7-40重量%的丙烯酸N,N-二甲基氨基乙酯和/或甲基丙烯酸酯组成的水溶性阳离子化学纯三元共聚物,(b)40-80重量% 的苯乙烯和(c)4-40重量%的丙烯腈溶解在水性介质中,组分(a)至(c)的总和总是为100重量%,并且至少10重量%的N, 三元共聚物的二甲基氨基被季铵化,其余部分被质子化,并且在该乳化剂相对于单体混合物的10至70重量%的存在下,(d)0至90重量%的丙烯腈和/ 或甲基丙烯腈,(e)5至95重量%的苯乙烯和(f)5至95重量%的醇基中具有1至12个碳原子的丙烯酸酯和/或甲基丙烯酸酯,组分(d)至 (f)总是为100重量%,乳化,得到的乳液在20D的温度下进行自由基引发的乳液聚合 EG至150℃

    Pneumatically operated hydraulic pump
    38.
    发明授权
    Pneumatically operated hydraulic pump 失效
    气动液压泵

    公开(公告)号:US06386841B1

    公开(公告)日:2002-05-14

    申请号:US09473487

    申请日:1999-12-28

    Applicant: Joachim Probst

    Inventor: Joachim Probst

    CPC classification number: F04B9/1276 F01L23/00 F04B9/1256 F04B9/133 F04B9/14

    Abstract: A pneumatically operated hydraulic pump includes a cylinder housing accommodating a main piston to subdivide the housing interior in two working chambers. The main piston is connected to a hydraulic piston for joint reciprocation so that the hydraulic piston can carry out a suction stroke when the main piston moves to one end position and a pressure stroke when the main piston moves to the other end position. Arranged laterally to the cylinder housing is a control mechanism for regulating a flow of working fluid alternately to the working chambers. The control mechanism includes a plastic valve casing for accommodating a control piston having opposite end faces of different size to define different effective areas and thereby realize reciprocation of the control piston by the working fluid. A slide shoe is guided in the valve casing for conjoint movement with the control piston. A displacement of the main piston into the two end positions actuates respective pilot valves which regulate the reciprocation of the control piston and the slide shoe to thereby move the main piston between the end positions which discharging working fluid via the deflection zone in the slide shoe to the atmosphere.

    Abstract translation: 气动液压泵包括容纳主活塞的气缸壳体,以将壳体内部细分成两个工作室。 主活塞连接到液压活塞用于联合往复运动,使得当主活塞移动到一个终端位置时,液压活塞可以执行吸入冲程,并且当主活塞移动到另一端位置时,液压活塞可以执行吸入冲程。 与气缸壳体侧向排列的是用于将工作流体的流动交替地调节到工作室的控制机构。 该控制机构包括:用于容纳具有不同尺寸的相对端面的控制活塞的塑料阀壳体,以限定不同的有效区域,从而实现控制活塞由工作流体往复运动。 滑阀在阀壳体中被引导以与控制活塞一起运动。 主活塞进入两个端部位置的位移致动相应的先导阀,其调节控制活塞和滑靴的往复运动,从而使主活塞在通过滑靴中的偏转区域将工作流体排出到工作流体的端部位置之间移动到 气氛。

    Coating compositions, a process for their production and their use for coating water-resistant substrates
    39.
    发明授权
    Coating compositions, a process for their production and their use for coating water-resistant substrates 失效
    涂料组合物,其制备方法及其用于涂覆耐水基材的用途

    公开(公告)号:US06376602B1

    公开(公告)日:2002-04-23

    申请号:US08432560

    申请日:1995-05-01

    Abstract: The present invention relates to water-borne coating compositions wherein the binder contains a mixture of a) a polyol component dispersed in water or a water/solvent mixture which contains at least one polymer prepared from olefinically unsaturated monomers and having a molecular weight (Mn) of at least 500, at least two alcoholic hydroxyl groups per molecule, a hydroxyl value of 15 to 250 mg KOH/g, an acid value of 0 to 7 mg KOH/g and a total content of sulfonate and carboxylate groups of 0 to 4.5 milliquivalents per 100 g of solid resin and b) a polyisocyanate component which is emulsified in the dispersion of polyol component a), has a viscosity at 23° C. of 50 to 10,000 mPa.s and an average NCO functionality of 1.8 to 4.2, and contains 12.0 to 21.5% by weight of (cyclo)aliphatically bound isocyanate groups and, optionally, 2 to 20% by weight of ethylene oxide units present within polyether chains, the polyether chains containing a statistical average of 5 to 70 ethylene oxide units, wherein the components are present in quantities corresponding to an equivalent ratio of isocyanate groups of component b) to alcoholic hydroxyl groups of component a) of 0.2:1 to 5:1. The present invention also relates to a process for the production of these coating compositions and to coated water-resistant substrates prepared from these coating compositions.

    Abstract translation: 本发明涉及水性涂料组合物,其中粘合剂含有分散在水中的多元醇组分或含有至少一种由烯属不饱和单体制备的聚合物的水/溶剂混合物的混合物,其分子量(Mn)为 每分子至少500个,至少两个醇羟基,羟基值为15-250mg KOH / g,酸值为0-7mg KOH / g,磺酸盐和羧酸酯基团的总含量为0-4.5毫克 每100g固体树脂和b)在多元醇组分a)的分散体中乳化的多异氰酸酯组分,其在23℃下的粘度为50至10,000mPa.s,平均NCO官能度为1.8至4.2,并且包含 12.0至21.5重量%的(环)脂族结合的异氰酸酯基团和任选地2至20重量%存在于聚醚链内的环氧乙烷单元,所述聚醚链含有5-70个环氧乙烷单元的统计平均值 其中组分以对应于组分b)的异氰酸酯基团与组分a)的醇羟基的当量比为0.2:1至5:1存在。 本发明还涉及制备这些涂料组合物的方法和由这些涂料组合物制备的涂覆的耐水基材。

    Coating compounds, a process for their production and their use for the production of coatings
    40.
    发明授权
    Coating compounds, a process for their production and their use for the production of coatings 失效
    涂料化合物,其生产工艺及其在涂料生产中的应用

    公开(公告)号:US06319981B1

    公开(公告)日:2001-11-20

    申请号:US08211698

    申请日:1994-04-13

    Abstract: The present invention relates to coating compounds of which the binder consists essentially of a combination of a) a polyol component dissolved and/or dispersed in water or a water/solvent mixture, and b) a polyisocyanate component emulsified in the solution and/or dispersion of the polyol component with a viscosity at 23° C. of 50 to 10,000 mPa.s, in quantities corresponding to an equivalent ratio of isocyanate groups of component a) to alcoholic hydroxyl groups of component b) of 0.5:1 to 5:1, characterized in that component consists essentially of a1) a water-dilutable, hydroxyfunctional polycondensate resin free from urethane and sulfonate groups and having a molecular weight Mn above 500 or a2) a mixture of such a polycondensation resin with up to 100% by weight, based on the weight of the polycondensation resin, of at least one water-dilutable, hydroxyfunctional polymerization resin having a molecular weight Mn above 500. The present invention also relates to a process for the preparation of these coating compounds and to their use for the production of coatings.

    Abstract translation: 本发明涉及涂料化合物,其粘合剂基本上由以下组合组成:a)溶解和/或分散在水中的多元醇组分或水/溶剂混合物,和b)在溶液和/或分散体中乳化的多异氰酸酯组分 多元醇组分,其在23℃下的粘度为50至10,000mPa.s,其量对应于组分a)的异氰酸酯基团与组分b)的醇羟基的当量比为0.5:1至5:1,其特征在于 该组分基本上由以下组分组成:a)不含氨基甲酸酯基和磺酸酯基团并具有分子量Mn在500以上的水可稀释的羟基官能团的缩聚物树脂2)这种缩聚树脂与至多100重量%的混合物,基于重量 的缩聚树脂,其至少一种分子量Mn高于500的水可稀释的羟基官能聚合树脂。本发明还涉及制备方法 这些涂料化合物及其用于生产涂料的用途。

Patent Agency Ranking