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    • 1. 发明授权
    • Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use
    • 泡沫形式的吸水交联聚合物,其制备方法及其应用
    • US06455600B1
    • 2002-09-24
    • US09623590
    • 2000-09-05
    • Hans-Joachim HähnleUlrich SchröderMartin BeckWolfgang HeiderGunnar SchornickThomas Anstock
    • Hans-Joachim HähnleUlrich SchröderMartin BeckWolfgang HeiderGunnar SchornickThomas Anstock
    • C08J928
    • C08J9/30A61L15/425A61L15/60C08J2300/14
    • A water-absorbing, expanded, crosslinked polymer obtainable by (I) foaming a polymerizable aqueous mixture which comprises (a) monoethylenically unsaturated monomers which contain acidic groups and are optionally neutralized, (b) optionally other monoethylenically unsaturated monomers, (c) crosslinkers, (d) initiators, (e) 0.1-20% by weight of at least one surfactant, (f) optionally at least one solubilizer and (g) optionally thickeners, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents,  where the foaming takes place by dispersing fine bubbles of a gas which is inert to free radicals in the polymerizable aqueous mixture, and (II) polymerizing the foamed mixture to form an expanded hydrogel, whereby at least 20 mol % of the monomers (a) which contain acidic groups have been neutralized with tertiary alkanolamines and/or the free acidic groups of the expanded hydrogel have been at least 20 mol % neutralized with at least one alkalolamine after the polymerization, and, where appropriate, adjusting the water content of the expanded polymer to 1-60% by weight, the production thereof and the use thereof in hygiene articles employed to absorb body fluids and in dressing material for covering wounds.
    • (I)发泡可聚合水性混合物的吸水膨胀交联聚合物,其包含(a)含有酸性基团并任选中和的单烯属不饱和单体,(b)任选的其它单烯属不饱和单体,(c)交联剂, (d)引发剂,(e)0.1-20重量%的至少一种表面活性剂,(f)任选的至少一种增溶剂和(g)任选的增稠剂泡沫稳定剂,聚合调节剂,填料和/或细胞成核剂,其中 通过将可自由基惰性的气体的细小气泡分散在可聚合的含水混合物中,并且(II)使发泡混合物聚合以形成膨胀的水凝胶,从而将至少20mol%的单体(a) 含有酸性基团已经被叔链烷醇胺中和,和/或膨胀的水凝胶的游离酸性基团在聚合后与至少一种烷醇胺中至少20摩尔% 并且在适当的情况下,将发泡聚合物的含水量调节至1-60重量%,其生产以及用于吸收体液的卫生制品和用于覆盖伤口的敷料中的用途。
    • 4. 发明授权
    • Foams made from water-absorbing, basic polymers, method for the production and utilization thereof
    • 由吸水性碱性聚合物制成的泡沫体,其生产和利用方法
    • US07838567B2
    • 2010-11-23
    • US10502212
    • 2003-01-30
    • Samantha ChampHans-Joachim HähnleMartin BeckRüdiger Funk
    • Samantha ChampHans-Joachim HähnleMartin BeckRüdiger Funk
    • C08J9/12
    • C08J9/30C08J9/286C08J2201/0504C08J2205/022C08J2300/14
    • Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) optionally at least one solubilizer, (e) optionally thickeners, foam stabilizers, fillers, fibers and/or cell nucleators, and (f) optionally particulate water-absorbing acidic polymers, by dissolving a gas which is inert toward free radicals in the crosslinkable aqueous mixture under a pressure from 2 to 400 bar and subsequently decompressing the crosslinkable aqueous mixture to atmospheric or by dispersing fine bubbles of a gas which is inert toward free radicals, and (II) crosslinking the foamed mixture to form a hydrogel foam and if applicable adjusting the water content of the polymer foam to 1-60% by weight. Preparation of the foams by application of the abovementioned measures (I) and (II) and use of the thus obtainable foams in hygiene articles to absorb body fluids, in dressing material to cover wounds, as a sealing material, as a packaging material, as a soil improver, as a soil substitute, to dewater sludges, to absorb aqueous acidic wastes, to thicken waterborne paints or coatings in the course of disposing of residual quantities thereof, to dewater water-containing oils or hydrocarbons or as a material for filters in ventilation systems.
    • 由吸水性碱性聚合物组成的泡沫体可通过(I)发泡可交联水性混合物得到,所述可交联水性混合物包括(a)至少一种碱性基团任选被中和的碱性聚合物,(b)至少一种交联剂,(c)至少一种 表面活性剂,(d)任选的至少一种增溶剂,(e)任选的增稠剂,泡沫稳定剂,填料,纤维和/或细胞成核剂,和(f)任选的颗粒状吸水性酸性聚合物, 在2至400巴的压力下在可交联水性混合物中的基团,随后将可交联的含水混合物减压至大气或通过分散对自由基呈惰性的气体的细小气泡,和(II)将发泡混合物交联以形成水凝胶 泡沫,如果适用,将聚合物泡沫的含水量调节至1-60重量%。 通过应用上述措施(I)和(II)制备泡沫体,并将如此获得的泡沫在卫生制品中的使用以吸收体液,在敷料中覆盖伤口作为密封材料作为包装材料,如 土壤改良剂,作为土壤替代物,去除污泥,吸收含水酸性废物,在处理剩余量的过程中加厚水性涂料或涂料,将含水油或碳氢化合物或用作过滤器的材料脱水 通风系统。
    • 9. 发明授权
    • Electronic circuit for processing the measured values from a vortex
sequence produced by a Karman vortex path
    • 用于处理由Karman涡流路径产生的涡流序列的测量值的电子电路
    • US4375768A
    • 1983-03-08
    • US274520
    • 1981-06-17
    • Martin BeckWolfgang HohtUdo Mushold
    • Martin BeckWolfgang HohtUdo Mushold
    • G01F1/32
    • G01F1/329
    • An electronic circuit for processing measured values obtained from a vortex sequence produced by a Karman vortex path, wherein the ultrasonically sensed signals are processed both digitally in a first circuit branch for a computer and analogously in a second circuit branch for the connection of a two-channel continuous recorder. An adjustable frequency transforming arrangement is serially connected in the computer branch for balancing the circuit, and an additional frequency-voltage converter and and integrator are serially connected in the recorder branch along with a control logic circuit inserted between the two branches for starting the recorder after activation of the computer only when signals which can be evaluated are present.
    • 一种用于处理由卡门涡流路径产生的涡流序列获得的测量值的电子电路,其中超声波感测信号在用于计算机的第一电路分支中以数字方式被处理,并且类似地在第二电路支路中进行处理, 通道连续录像机。 可调频率变换装置在计算机分支中串联连接以平衡电路,附加的频率 - 电压转换器和积分器与插入在两个分支之间的控制逻辑电路串联连接在记录器分支中,用于启动记录器 仅当存在可评估的信号时激活计算机。