Microporous and Mesoporous Carbon Xerogel Having a Characteristic Mesopore Size and Precursors Thereof and Also a Process for Producing These and Their Use
    92.
    发明申请
    Microporous and Mesoporous Carbon Xerogel Having a Characteristic Mesopore Size and Precursors Thereof and Also a Process for Producing These and Their Use 审中-公开
    具有特征中孔尺寸和前体的微孔和介孔碳凝胶,以及这些及其用途的制造方法

    公开(公告)号:US20120020869A1

    公开(公告)日:2012-01-26

    申请号:US13002230

    申请日:2009-03-11

    Abstract: The invention relates to a microporous and mesoporous carbon xerogel and organic precursors thereof based on a phenol-formaldehyde xerogel. A characteristic parameter common to carbon xerogels is a peak in the mesopore size distribution determined by the BJH method (Barrett-Joyner-Halenda) from nitrogen absorption measurements at 77 K in the range from 3.5 nm to 4 nm. The production process is characterized firstly by the low starting material costs (use of phenol instead of resorcinol) and secondly by very simple and cost-effective processing; convective drying without solvent exchange instead of supercritical drying or freeze drying. The carbon xerogels and their organic phenol-formaldehyde xerogel precursors have densities of corresponding to a porosity of up to 89%, and the xerogels can also have a relevant mesopore volume. The carbon xerogels obtained from the phenol-formaldehyde xerogels are also microporous.

    Abstract translation: 本发明涉及一种基于酚 - 甲醛干凝胶的微孔和介孔碳干凝胶及其有机前体。 碳干凝胶常见的特征参数是在77 K范围内从3.5 nm到4 nm范围内的氮吸收测量,由BJH方法(Barrett-Joyner-Halenda)确定的中孔尺寸分布中的峰。 生产工艺的特点首先是低原料成本(使用苯酚而不是间苯二酚),其次是非常简单和成本有效的加工; 对流干燥无需溶剂交换,而不是超临界干燥或冷冻干燥。 碳干凝胶及其有机酚 - 甲醛干凝胶前体具有对应于高达89%的孔隙率的密度,并且干凝胶也可以具有相关的中孔体积。 由酚 - 甲醛干凝胶得到的干凝胶也是微孔的。

    Foams made from water-absorbing, basic polymers, method for the production and utilization thereof
    95.
    发明授权
    Foams made from water-absorbing, basic polymers, method for the production and utilization thereof 有权
    由吸水性碱性聚合物制成的泡沫体,其生产和利用方法

    公开(公告)号:US07838567B2

    公开(公告)日:2010-11-23

    申请号:US10502212

    申请日:2003-01-30

    Abstract: 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.

    Abstract translation: 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。

    Foam and use thereof
    99.
    发明申请
    Foam and use thereof 审中-公开
    泡沫及其用途

    公开(公告)号:US20070248642A1

    公开(公告)日:2007-10-25

    申请号:US11712789

    申请日:2007-03-01

    Abstract: The invention provides a method of producing a gelled foam comprising the steps of:forming a dispersion by mixing i) a solution comprising a soluble polysaccharide and a plasticizer and adding a polysaccharide/gel-forming ion particles or ii) a soluble, preferably immediately soluble, polysaccharide, preferably an alginate, a polysaccharide/gel-forming ion particles, and adding a solvent, said dispersion (ii) further comprising a water soluble plasticizer to make the dispersion and then aerating the dispersion to form the foam. The foam may be inhomogeneous in structure which is useful in providing improved delivery of a component carried in the foam and in degradation.

    Abstract translation: 本发明提供一种生产凝胶泡沫的方法,包括以下步骤:通过混合形成分散体i)包含可溶性多糖和增塑剂的溶液并加入多糖/凝胶形成离子颗粒或ii)可溶性,优选立即溶解 ,多糖,优选藻酸盐,多糖/凝胶形成离子颗粒,并加入溶剂,所述分散体(ii)还包含水溶性增塑剂以制备分散体,然后使分散体充气以形成泡沫。 泡沫体的结构可能不均匀,其可用于提供在泡沫中携带的组分的改进递送和降解。

    Porous material and method of production thereof
    100.
    发明申请
    Porous material and method of production thereof 失效
    多孔材料及其生产方法

    公开(公告)号:US20070135528A1

    公开(公告)日:2007-06-14

    申请号:US10566873

    申请日:2004-07-29

    Abstract: The present invention relates to a method for producing a porous material comprising the steps of; (a) providing a C/W emulsion comprising an aqueous phase, a matrix building material, a surfactant and liquid CO2 phase; (b) at least partially freezing the aqueous phase; (c) gasifying CO2 from the liquid CO2 phase to form an intermediate porous material; (d) venting gasified CO2 from the intermediate porous material; and (e) freeze drying the intermediate porous material at least substantially to remove the aqueous phase and form the porous material. The present invention also relates to a porous material obtainable by the method.

    Abstract translation: 本发明涉及一种生产多孔材料的方法,包括以下步骤: (a)提供包含水相,基质建筑材料,表面活性剂和液体CO 2相的C / W乳液; (b)至少部分冷冻水相; (c)从液体CO 2 2相中气化CO 2以形成中间多孔材料; (d)从中间多孔材料排出气化的CO 2 2; 和(e)至少基本上将中间多孔材料冷冻干燥以除去水相并形成多孔材料。 本发明还涉及可通过该方法获得的多孔材料。

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