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    • 1. 发明申请
    • Electrosterically stabilized aqueous polyurethane resins, method for the production thereof, and use thereof
    • US20060205869A1
    • 2006-09-14
    • US10551526
    • 2004-04-01
    • Norbert SteidlAlois MaierFranz WolferstetterChristian HuberSascha Raspl
    • Norbert SteidlAlois MaierFranz WolferstetterChristian HuberSascha Raspl
    • C08G18/08
    • C08G18/12C08G18/0823C08G18/283C08G18/3275C08G18/4854C08G18/6692C09D175/04C08G18/50
    • A description is given of electrosterically stabilized polyurethane resins having an improved profile of properties, obtainable by a) preparing a hydrophilic and solvent-free macromonomer (A)(ii) with monomodal molecular mass distribution, by a1)reacting 50 to 100 parts by weight of a hydrophilic alkyl- or arylpolyalkylene glycol (A)(i) with 1 to 100 parts by weight of a polyisocyanate component (B)(i) optionally in the presence of a catalyst in the absence of solvents, and subsequently a2) reacting the uniform preadduct from stage a1) completely with 0.5 to 200 parts by weight of a compound (C) in the absence of solvents, and b) by preparing the polyurethane dispersion, by b1)reacting 2 to 50 parts by weight of the hydrophilic and solvent-free macromonomer (A)(ii) with 25 to 250 parts by weight of the polyisocyanate component (B)(i), optionally in the presence of 0 to 50 parts by weight of a solvent component (D) and also of a catalyst, b2) reacting the polyurethane preadduct from stage b1) with 50 to 100 parts by weight of a polymeric polyol (A)(iii) and optionally with 0.5 to 10 parts by weight of a low molecular mass polyol component (A)(iv), optionally in the presence of a catalyst, b3)reacting the homogeneous polyurethane preadduct from stage b2) with 2 to 20 parts by weight of a polyol component (A)(v), optionally in the presence of a catalyst, b4) admixing the homogeneous polyurethane prepolymer from stage b3), before or during dispersion in 50 to 1500 parts by weight of water, with 2 to 20 parts by weight of a neutralizing component (E), b5)dispersing the optionally (partially) neutralized polyurethane prepolymer from stage b4) in 50 to 1500 parts by weight of water, which optionally further contains 0 to 100 parts by weight of a formulating component (F), and finally b6)reacting the (partially) neutralized polyurethane prepolymer dispersion from stage b5) with 3 to 60 parts by weight of a chain extender component (G) and also, subsequently or simultaneously, with 0 to 30 parts by weight of a chain stopper component (H). The performance properties of the polyurethane dispersions of the invention in terms of absence of solvent, and also material properties, are excellent. Also deserving of emphasis are the simplicity and reproducibility of the process and the storage stability of the products.
    • 6. 发明申请
    • TORSIONAL VIBRATION DAMPER
    • 扭转振动阻尼器
    • US20100171247A1
    • 2010-07-08
    • US12652193
    • 2010-01-05
    • Matthias GeislingerCornelius GeislingerChristian Huber
    • Matthias GeislingerCornelius GeislingerChristian Huber
    • F16F13/00
    • F16F15/1215F16F15/161
    • A torsional vibration damper comprises an outer housing, an inner part that is concentric relative to the outer housing, a plurality of chambers formed between the outer housing and the inner part, which are filled with a damping medium and are connected to one another through overflow channels, and a plurality of leaf spring assemblies that are arranged in the chambers and join the outer housing and the inner part with one another in a torsionally flexible manner. The leaf spring assemblies have machining-induced deflections. Two leaf springs with substantially similar deflections are each arranged within a chamber. The leaf spring pairs may be arranged in a mirror-image array or in parallel to one another. Thus, the manufacturing cost of a torsional vibration damper can be reduced, while its compact outer dimensions can be maintained.
    • 扭转振动阻尼器包括外壳体,相对于外壳体同心的内部部件,形成在外壳体和内部部件之间的多个腔室,其被填充有阻尼介质并且通过溢流器彼此连接 通道和多个板簧组件,其布置在室中并且以扭转的方式彼此连接外壳和内部。 板簧组件具有加工引起的偏转。 具有基本上相似的偏转的两个板簧均布置在室内。 板簧对可以布置在镜像阵列中或彼此平行。 因此,可以减小扭转振动阻尼器的制造成本,同时可以保持紧凑的外形尺寸。