摘要:
Disclosed are a blood filter which exhibits excellent leukocyte elimination performance as well as significantly improved blood throughput per unit time and erythrocyte recovery rate and a method of manufacturing the same. The blood filter of the present invention includes a pre-treatment filter which is a laminate of first non-woven fabrics having a mean fiber diameter of 5 to 30 µm and a mean pore size of 10 to 30 µm, and a main filter which is a laminate of second non-woven fabrics having a mean fiber diameter of 1 to 5 µm, a mean pore size of 5 to 10 µm and a mean pore size distribution rate of 30% or more. A filling density of the pre-treatment filter and a filling density of the main filter, with respect to a target blood throughput of the blood filter, are 0.1 g/100 ml to 1 g/100 ml and 1 g/100 ml to 3 g/100 ml, respectively.
摘要:
Disclosed is an air-permeable filter with an adhesive layer. This air-permeable filter is imparted with oil repellency and includes: a porous membrane having a surface coated with an oil-repellent agent; and an adhesive layer disposed on the surface. The oil-repellent agent contains a linear fluorine-containing hydrocarbon group represented by (1) -R 1 C 5 F 10 CH 2 C 4 F 9 or (2) -R 2 C 6 F 13 , where R 1 and R 2 are each independently an alkylene group having 1 to 12 carbon atoms or a phenylene group. This air-permeable filter is imparted with oil repellency without significantly reducing its adhesive strength to the adhesive layer.
摘要:
An oil-water separation apparatus is provided which can easily separate and collect oil from a liquid mixture containing water and oil at low cost. The oil-water separation apparatus includes an oil-water-separating member configured to separate a liquid mixture containing water and oil into moisture and oil, and a liquid reservoir subdivided into an upper region and a lower region by the oil-water-separating member. The oil-water separation apparatus filters the liquid mixture by gravity. The oil-water-separating member includes a base which includes a channel for the liquid mixture. The oil-water-separating member is formed in the base, and the oil-water-separating member contains a fluorine compound which has an oil-repellency-imparting group and a hydrophilicity-imparting group. A drain port for discharging the moisture is formed in the lower region of the liquid reservoir.
摘要:
Fiber structures and methods are described that incorporate a body of a micron fiber modified by the attachment of discrete length nano-fibers. Numerous of these modified fiber structures can be assembled into air filter media. Further augmentations of the modified fibers and media can be implemented to improve filtration characteristics.
摘要:
The present invention relates to a coalescence filter for purifying a fluid which contains a carrier and at least one liquid contaminant, by coalescing of the at least one contaminant. The coalescence filter comprises an inlet for supplying the fluid to a filter element present in the coalescence filter. The filter element comprises a primary coalescence medium which is provided for coalescing of the at least one contaminant in the primary coalescence medium. The coalescence filter further comprises an outlet for discharging the coalesced contaminant from the filter element. The primary coalescence medium comprises at least one layer of a porous material, and has a total thickness of at least 3.5 mm, preferably at least 4 mm, preferably at least 5 mm, more preferably at least 6 mm, most preferably at least 7 mm, in particular at least 7.5 mm, measured at a pressure of 2N/cm2.
摘要翻译:本发明涉及一种用于净化含有载体和至少一种液体污染物的流体的聚结过滤器,其通过聚结至少一种污染物。 聚结过滤器包括用于将流体供应到存在于聚结过滤器中的过滤元件的入口。 过滤元件包括主聚结介质,其被提供用于聚结初级聚结介质中的至少一种污染物。 聚结过滤器还包括用于从过滤元件排出聚结的污染物的出口。 初级聚结介质包括至少一层多孔材料,并且具有至少3.5mm,优选至少4mm,优选至少5mm,更优选至少6mm,最优选至少7mm的总厚度 ,特别是至少7.5mm,在2N / cm 2的压力下测量。
摘要:
A filter material for separating liquids from fluid flows comprises a wet- or dry-laid nonwoven, woven fabric, or an open-cell foam. The two sides of the filter material are impregnated with two different binders in such a way that one side of the filter material has a higher amount of surface energy and thus a shorter drop sink-in time than the opposite side.
摘要:
A gas-permeable filter of the present invention has a surface coated with an oil-repellent agent. The oil-repellent agent contains a copolymer of a linear fluorine-containing hydrocarbon group-containing monomer and a crosslinkable monomer. The crosslinkable monomer contains at least one selected from an alkoxy group-containing monomer, a hydroxy group-containing monomer, and a carboxyl group-containing monomer.
摘要:
To provide an oil repellent waterproof air-permeable filter of which environmental burden is small and which has an excellent liquid repellency to ketone solvents and ester solvents, and its production process. An oil repellent waterproof air-permeable filter comprising a substrate having a continuous porous structure and a coating material covering the substrate and containing a fluoropolymer having a perfluoroalkyl group, wherein the fluoropolymer has constituent units based on an acrylate having a chlorine atom at an α position and a C 1-6 perfluoroalkyl group, and the proportion of said constituent units is from 40 to 100 mass% in the total constituent units. A process for producing an oil repellent waterproof air-permeable filter, treating the substrate with an oil repellent waterproof composition containing a medium and the coating material and removing the medium.
摘要:
The invention includes a filtration medium for the purification of a liquid or a gas material that includes a mat having a first surface and a second surface At least one of the first surface or the second surface is substantially non-planar The mat comprises a foamed resin having a density of about 1 Ibs/ft3 to about 3 Ibs/ft3 and/or an indentation load deflection of about 35 lbs to about 150 lbs Also included in the invention is a filtration medium for the purification of a liquid or a gas material comprising at least two mats, each mat having a first surface and a second surface, wherein at least one of the first surface or the second surface is substantially non- planar and has a substantially non- uniform convolution profile