Abstract:
Nanoporous polymer foams, obtainable by curing microemulsions. The microemulsion comprises an aqueous reactive resin phase, a suitable amphiphile and an oil phase, and the reactive components may be subjected to a polycondensation. In a subsequent drying operation, the thus obtained gel particles are freed of the fluid components.
Abstract:
The present invention relates to a process for the production of workpieces, wherein (a) pieces of open-cell aminoplast foam having an average diameter in the range from 50 μm to 5 mm (weight average) (b) are mixed with at least one film-forming polymer, subjected to a shape-imparting step and then dried.
Abstract:
The invention relates to a method of storing, transporting and supplying electrochemical energy, with storage and supply being physically separated.
Abstract:
Modified open-cell foams having a density in the range from 5 to 1000 kg/m3, a mean pore diameter in the range from 1 μm to 1 mm, a BET surface area in the range from 0.1 to 50 m2/g and an acoustic absorption factor of more than 50% at a frequency of 2000 Hz at a layer thickness of 50 mm, comprising in the range from 1 to 4000 ppm, based on the weight of the unmodified open-cell foam, fixed particles (b) having a mean diameter (number average) in the range from 5 nm to 900 nm.
Abstract translation:密度在5至1000kg / m 3的范围内的改性开孔泡沫,平均孔径在1μm至1mm的范围内,BET表面积在0.1 至50m 2 / g,在2000Hz的频率下,在50mm的层厚度下的声吸收系数大于50%,包括在1至4000ppm的范围内,基于 未改性的开孔泡沫体的重量,平均直径(数均)在5nm〜900nm范围内的固定粒子(b)。
Abstract:
The present invention relates to membrane electrode units (MEU) for high temperature fuel cells having an improved stability and a process for their manufacture.
Abstract:
The invention relates to processes for the production of moldings via shaping of thermoplastic molding compositions F with reduced formation of deposit on the shaping mold, and it is essential to the invention that the thermoplastic molding compositions F comprise an amount of from 0 mg/kg to 100 mg/kg (calculated as the total of the mg of Mg and the mg of Ca per kg of thermoplastic molding composition F and determined by means of atomic emission spectrometry using inductively coupled plasma (ICPAES)) of magnesium compounds and/or calcium compounds; the invention further relates to the use of molding compositions F in the inventive processes, and also to moldings which can be produced by the inventive processes.
Abstract:
A method for cleaning surfaces using aminoplast foam pieces produced from (a) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 μm to 1 mm or (b) open-cell aminoplast foams having a density in the range from 5 to 500 kg/m3 and a mean pore diameter in the range from 1 μm to 1 mm, which have been treated (b1) with an aqueous formulation of at least one compound (b-1) having at least one hemiaminal or aminal group per molecule or at least one copolymer which comprises, incorporated in the form of polymerized units, at least one comonomer containing OH groups or β-dicarbonyl groups or epoxide groups, or (b2) with at least one polymer (c-1) which is solid at room temperature, contains carboxyl groups and/or carboxylic ester groups and has a molecular weight Mn in the range from 1000 to 1 000 000 g/mol, the aminoplast foam pieces used having an average diameter in the range from 0.1 mm to 50 mm.
Abstract translation:使用由(a)密度为5〜500kg / m 3的开孔细胞氨基塑料泡沫制成的氨基塑料泡沫片清洗表面的方法,平均孔径在1 (b)密度为5〜500kg / m 3的开孔氨基塑料泡沫,平均孔径为1〜1mm,其中, 已经用至少一种每分子具有至少一个半缩醛或缩醛基的化合物(b-1)的水性制剂处理(b1),或至少一种共聚物,其包含以聚合单元形式结合至少一种共聚单体 含有OH基或β-二羰基或环氧基,或(b2)与至少一种在室温下为固体的聚合物(c-1)包含羧基和/或羧酸酯基并且具有分子量M n <1000,在1000至1 000 000 g / mol范围内,使用的氨基塑料泡沫片的平均直径范围为0.1 mm至50 mm。
Abstract:
The present invention relates to membrane electrode units (MEU) for high temperature fuel cells having an improved stability and a process for their manufacture.
Abstract:
The invention relates to a method of storing, transporting and supplying electrochemical energy, with storage and supply being physically separated.
Abstract:
The invention relates to processes for the production of moldings via shaping of thermoplastic molding compositions F with reduced formation of deposit on the shaping mold, and it is essential to the invention that the thermoplastic molding compositions F comprise an amount of from 0 mg/kg to 100 mg/kg (calculated as the total of the mg of Mg and the mg of Ca per kg of thermoplastic molding composition F and determined by means of atomic emission spectrometry using inductively coupled plasma (ICPAES)) of magnesium compounds and/or calcium compounds; the invention further relates to the use of molding compositions F in the inventive processes, and also to moldings which can be produced by the inventive processes.