Adsorption non-woven material in particular to adsorb petrochemicals from liquid substances and/or to adsorb odorants from gas phases with at least one spunbonded non-woven material and its manufacture method

FIELD: textile, paper.

SUBSTANCE: adsorption non-woven material, its manufacture method, in particular to adsorb petrochemicals from liquid phases and/or to adsorb odorous substances from gas phases, comprising at least one non-woven material (2). Where on at least one surface of the non-woven material (2) a polymer is applied which contains at least one adsorbing material as a filler, and this adsorption substance has micropores and/or mesopores and/or macropores, where the surface of the non-woven material (2) covered with the polymer of the nonwoven material (2) is covered with at least one non-woven cover material (7) which is connected to the non-woven material (2) and/or polymer.

EFFECT: improved material properties.

9 cl, 1 dwg

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: primary ground material for a carpet, comprising at least a first fibre layer and a second fibre layer, characterised by that both fibre layers are layers of nonwoven material consisting of randomly laid fibres and that both fibre layers have the same composition on the entire fibre layer, where linear density of fibres is in the range of 1 dtex to 25 dtex, wherein both fibre layers contain at least two different polymers and at least one polymer contained in the first layer, different from the polymers contained in the second layer.

EFFECT: obtaining carpet material.

13 cl, 2 tbl

FIELD: technological processes.

SUBSTANCE: invention relates to piling of fibrous materials and method of its arrangement. The piling comprises at least two layers of unidirectional carbon fibres going in different directions, in which each unidirectional layer is connected on at least one its surface with an adjacent layer of non-woven material from thermoplastic fibres, besides, between two serial layers of unidirectional carbon fibres there is at least one layer of non-woven material from thermoplastic fibres. Connection between each unidirectional layer and each layer of non-woven material adjacent to it is provided due to the specified layer of the non-woven material, by means of welding spots resulting in intermittent welding. Specified welding points also provide for cohesion of piling, at the same time at least one welding spot includes perforations, which form channels for diffusion of resin and going into thickness of piling from fibrous materials across the piling layers.

EFFECT: invention provides for increased mechanical properties and drapability, absence of microcracks.

23 cl, 9 dwg, 5 tbl

FIELD: chemistry.

SUBSTANCE: subject of the invention is represented by a felt material, which contains, at least, one felt layer and one absorbent-containing layer, a method of the felt material manufacturing and the application of the felt material in textile products, footwear, for technical and medical purposes. The felt material in accordance with the invention possesses advantages of traditional felt materials with respect to heat- and sound-insulating properties and is air-permeable in the dry condition. However, due to special implementation the said material is waterproof in the wet condition and, therefore is suitable for sealing many types of materials. The felt material in accordance with the invention binds air moisture to a larger extent or binds water in a way, different from the traditional felt materials.

EFFECT: creation of the absorbent-containing material with high mechanical strength and good air permeability in the dry condition, in addition, the material must be suitable for air conditioning as, for instance, ventilation, dehydration and/or humidification of respective products made by means of it.

33 cl, 10 dwg

FIELD: chemistry.

SUBSTANCE: described are alkali-resistant fibrous products, laminates and methods of their manufacturing. The said product includes fibres and/or one or more fibre strands, with the most mass of the fibres in a mat being glass fibres and/or one or more strands of the glass fibres, the fibres, fixed together in places, where the fibres and/or one or more strands of the fibres intersect with each other for approximately 10 to approximately 35 wt %, counted per dry weight of the product, in a dry state, a binding agent, containing from 1 to approximately 60 wt % of an ureaformaldehyde binding agent and from approximately 45 to 99 wt % of a melamineformaldehyde binding agent, with bringing the total percent content to 100 and basing on the weight of the binding agent in the said product, fixation of the fibres in the said product. Higher resistance to alkalis is provided.

EFFECT: fibrous mat, fabric or cloth product possesses high resistance to alkali substances, which have pH, at least, 7.5 and especially to a saturated water solution of calcium hydroxide.

17 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to sheet, its application and to polymer composition, used for obtaining film in form of sheet. Sheet is characterised by rate of water vapour passing (RWVP), equal to, at least, 100 g/m2day, with measurement being carried out in accordance with document ISO 12572(B) at 1 bar, 23C and 85% relative humidity. Sheet contains film, made of polymer composition, which contains polar thermoplastic elastomer, sterically hindered amine light stabiliser (SHLS), UV-absorber and aromatic amine radical scavenger. Film is less than 50 microns thick. Sheet is applied in clothes, as films in buildings and as packing material.

EFFECT: invention makes it possible to obtain polymer film with increased service term and sheet, characterised by high water vapour permeability.

8 cl, 1 tbl, 6 ex

FIELD: textiles, paper.

SUBSTANCE: nonwoven filtering material comprising a nonwoven web of an anion-exchange modified polyamide fibres and a system of fastening loops of stitching thread, additionally comprises a second fibrous layer of hydrophilic modified polyamide fibres, the stitching thread is used as the yarn from a mixture of hydrophilic modified polyamide fibres and the high-shrinkage viscose fibres with the content of the latter in the mixture of 30-40%, the stitching thread when fastening with the tricot laying forms the plush broaching located between the fibrous layers, at that the distance between the layers is 4-7 mm, and the ratio of the layer of the modified anion-exchange polyamide fibres, the stitching thread and the layer of hydrophilic modified polyamide fibres by weight is 1:0.2:0.5.

EFFECT: increased protective properties of the filtering elements of the respirators reduced suction coefficient due to increasing the stiffness of adjacency of the half-mask along the line of obturation.

1 dwg, 1 tbl

FIELD: textiles, paper.

SUBSTANCE: absorbing article according to the present invention comprises the following elements: a liquid-permeable upper sheet; a liquid-tight lower sheet; an absorbing element located between the upper sheet and the lower sheet for absorbing liquid, permeating through the upper sheet, and a receiving layer located between the upper sheet and the absorbing element for supplying liquid penetrating through the upper sheet to the absorbing element. The receiving layer comprises a nonwoven fabric perforated without physical or thermal deformation.

EFFECT: invention provides a method of production of nonwoven fabric, perforated without physical or thermal deformation, and an absorbing article comprising such nonwoven fabric.

24 cl, 8 dwg

FIELD: textiles, paper.

SUBSTANCE: invention relates to a method of manufacturing a velour carpet comprising the following steps: a) needle punching of the nonwoven material/nonwoven material "Mali" on the strip with the bristles using needle felting machine, in which course of implementation the shaggy nonwoven material/bearing nonwoven material is dragged through the strip with bristles and partially withdrawn back from the strip with bristles such that the fibers of the shaggy nonwoven material/bearing nonwoven material are located in the plane of the strip with bristles; b) separation of the nonwoven material from the strip with bristles using a shaft-brush; c) brushing the shaggy side prior to cutting loops. Additional nonwoven material/nonwoven material "Mali", especially shaggy nonwoven material/bearing nonwoven material is placed on the back side of the nonwoven material/nonwoven material "Mali", especially between first and second needle felting machines, between the steps a) and b).

EFFECT: increased density of fiber and increased stability of shag.

8 cl, 6 dwg

FIELD: textiles, paper.

SUBSTANCE: conductive material comprises a conductive nonwoven fabric containing conductive carbon fibers in an amount of 5-50 wt % in combination with cellulose fibers and/or synthetic fibers. The nonwoven fabric comprises conductive and non-conductive zones that contain sonicated sections. The conductive material is used in production of heating devices, electronic switches, electronic devices, RF modification devices. In the electronic switch the conductive nonwoven fabric is spaced from the opposite conductive layer and the electrical connection is formed between them when they are pressed to each other. The electronic switch is used in production of a garment, a glowing symbol. The electronic product comprises an outer surface intended for location of plurality of keys, a first conductive layer located under the keys, the second conductive layer, spaced from the first conductive layer, and in which when pressing one of the keys an electric connection is created between the conductive layers.

EFFECT: reduction of weight of the non-woven conductive fabric, increased strength of the multilayer flexible electronic device, reduction of the total resistance of heating devices.

19 cl, 21 dwg

FIELD: construction.

SUBSTANCE: panel comprises a leaf (3), arranged between two layers of coatings (2), made of fibrous structures (21), which are attached by means of a layer-forming or a connecting material, for instance, a polymer (22), a binder, a foamed polymer. The leaf usually contains foamed materials, thick felts, powder materials, semifluid materials, etc. Fibres (7) from fibrous structures (21) are pulled along one or more directions of inclination relative to layers of coatings (2) and usually by means of needle piercing, into the leaf (3), in particular, into foam plastic plates (4), which represent the leaf. The fastening material is also used to fix the pulled fibres (7) to do mutual fixation of leaf (3) components and coating layers (2).

EFFECT: invention may be used for economically efficient manufacturing of especially stable composite panels with a high number of leaf components, layers of coatings and alignment of pulled fibres of fibrous structures.

20 cl, 18 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to nickel complex of 5,10,15,20-tetrakis [3',5'-di(2"-methylbutyloxy)phenyl]-porphin of formula

EFFECT: invention makes it possible to obtain nickel complex, demonstrating property of stationary phase for gas chromatography.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to field of analytic chemistry. Carrier is modified with organosilicon compound, containing -SH or -NH2 group, is processed with colloid gold solution. After that, sulphur-containing organic compound is covalently fixed on the surface of gold nanoparticles.

EFFECT: claimed is method of obtaining separation material, containing silicon dioxide-based carrier and gold nanoparticles.

3 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of sorbents for chromatographic separation of fullerenes. Sandwiched nanotubes are subjected to heat treatment at 800-1000C and mixed with disperse Teflon. Said step are performed in the medium of nitrogen or inert gas.

EFFECT: simplified production of efficient sorbent.

2 dwg, 2 ex

FIELD: medicine.

SUBSTANCE: invention refers to a moulded sorbent with the antibacterial properties for treating endometritis, representing nanodispersed mesoporous carbon having a specific adsorption surface of no more than 50 m2/g and a crushing strength of not less than 20 kg/cm2, containing polyvinylpyrrolidone in an amount of not less than 5.0%, characterised by the fact that it is presented in the form of cylinders 2-4mm in diameter, 15-25mm long with one inner circular passage, to a method of treating it, as well as to a method of treating endometritis.

EFFECT: higher clinical effectiveness.

3 cl, 10 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: claimed is method of obtaining sorbent for gaschromographic separation of aromatic polycyclic hydrocarbons. Calcium aluminate is obtained by mixing in solution calcium nitrate, aluminium nitrate and crystalline citric acid at molar ratio of components 1:2:3. After mixing drying at 130C and burning at 1000C are carried out. Obtained product is mixed with solution of sodium chloride, evaporated on water bath until loose sample is obtained, dried at 120C and incinerated at 900C.

EFFECT: increase of sorbent selectivity.

3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the field of materials science and analytical chemistry. A nanohybrid functional separation material contains gold nanoparticles covalently fixed on a carrier and covalently fixed sulphur-containing organic ligands on the surface of gold nanoparticles.

EFFECT: invention provides an increase of the separation material efficiency.

4 cl, 6 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to field of recycling of radioactive solutions. Composition of extraction chromatographic material for selective separation of U(VI), Th(IV), Np(IV) and Pu(IV) from nitric acid solutions contains three components. As complexants composition contains 33% of methyltrioctylammonium nitrate (MTOAN) and 1-16% of phosphoryl podand. As matrix composition contains macroporous spherical granulated copolymer of styrene with divinylbenzene. As phosphoryl podand used are derivatives of 1,5-bis[2-(oxyethoxyphosphoryl)-4-(alkyl)phenoxy-3-oxapentane of general formula I , where Alk is alkyl C1-C12.

EFFECT: extension of spectrum of highly efficient selective sorbents for extraction of U(VI), Th(IV), Np(IV) and Pu(IV) from nitric acid solutions.

8 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to production of silicate materials. Disclosed is a method of producing inverted-phase hydrophobisated polysilicate sorbents, which includes reaction of a hydrophilic silicate component with an amphiphilic silicate component in an aqueous medium. Co-condensation of said components is carried out with molar ratio of water to the sum of the silicate components of 124-250. An acidic and/or alkaline component is also added to the reaction mixture until polysilicate hydrogel forms. The obtained sorbent is intended for use as a filter medium and as an enterosorbent.

EFFECT: obtaining three-dimensional hydrogel of polysilicic acid containing hydrophilic and hydrophobic groups in an aqueous medium.

17 cl, 3 tbl, 1 dwg, 16 ex

FIELD: chemistry.

SUBSTANCE: group of inventions relates to the field of chromatography. Claimed is a method of obtaining a filling agent. The method includes the first stage of interaction of an inorganic particle, which has a hydroxyl group, with a silane binding agent, having an alkenyl group with the carbon number from 2 or more and 8 or lower and/or an alkynyl group with the carbon number from 2 or more and 7 or lower, and the second stage of interaction of the inorganic particle, which reacted with the silane binding agent, with the compound, represented by the general formula (1): . R1 represents an alkyl group with the carbon number from 4 or more and 50 or lower or an aryl group with the carbon number from 6 or more and 30 or lower, and each of R2 and R3 represents independently a hydrogen atom, chlorine or an alkyl group with the carbon number from 1 or more and 4 or lower. The first stage additionally includes interaction of the inorganic particle, which reacted with the said silane binding agent, with the silane agent, which does not have any alkenyl or alkynyl group.

EFFECT: group of inventions ensures obtaining the filling agent for a column, in which a low degree of widening of the main substance peak is ensured.

4 cl, 3 dwg, 3 ex

FIELD: chemistry.

SUBSTANCE: sorbents are obtained by interaction of ferrous sulphate and calcium hydroxide in a water medium, which contains fibrillated cellulose fibres. Particles of iron hydroxide and calcium sulphate formed as a result of the interaction are immobilised on the fibres with formation of a sorbent.

EFFECT: increased content of an active phase in the sorbent.

2 cl, 4 ex

FIELD: chemical engineering.

SUBSTANCE: absorbent comprises non-spherical particles of aluminum hydroxide whose fiber diameter is less than 50 nm. The absorbent is produced by interacting the initial aluminum component with water solution at a temperature of up to 100°C and applied directly on the fiber surface.

EFFECT: enhanced absorbing capabilities.

60 cl, 9 dwg, 8 tbl, 15 ex

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