346 results about "Hygroscopic Agents" patented technology

An air freshening composition including porous carrier particles having a perfume composition entrapped therein, and a second component selected from an inert filer, hygroscopic agent, binder, coating material, moisture providing agent, and mixtures thereof. The composition may further comprise various optional components such as free perfumes, colorants, disintegrants, water swelling agents, porosity modifiers and mixtures thereof. A method for processing the compositions into a solid article includes the steps of entrapping a perfume in the porous carrier particles, heating and incorporating a carrier or binder material. The compositions may be further processed by optionally incorporating a powder inert filler and forming articles from the mixture. The articles may be formed from the compositions through prilling, extrusion, or compaction amongst other techniques. The air freshening articles and compositions will provide a sustained and controlled release of the perfume compositions over a long period of time without the use of a heat to activate the release. Articles of manufacture including the air freshening articles and various packaging are also disclosed.

The present invention is directed to a method of forming nonwoven webs comprising coated fibers. The method of forming the nonwoven web generally comprises the steps of forming fibers from a melt fibrillation process, forming at least one fluid stream containing a coating substance, applying the coating substance onto the surface of the fiber, and depositing the coated fibers on a surface to form a web. Typically, the fibers are coated in flight. Preferably, the melt fibrillation process to form the fibers is a melt film fibrillation process. A melt film fibrillation process generally includes the steps of providing a polymeric melt, utilizing a central fluid stream to form an elongated hollow polymeric film tube, and using air to form multiple nanofibers from the hollow tube. The nonwoven web may comprise a layer having a significant number of nanofibers with diameters less than one micron. The layer may comprise two or more pluralities of fiber diameter distributions wherein at least one plurality has an average fiber diameter of less than about one micron. The coating substance can be selected from the group consisting of lotions, powders, surfactants, softeners, nanoparticles, creams, gels, conducting fluids, hydrophilic agents, hydrophobic agents, hygroscopic agents, emollients, plasticizers, absorbent gelling material, antimicrobial agents, and combinations thereof. A preferred coating substance is a surfactant. Another preferred coating substance is a hydrophilic or hydrophobic substance. The present invention is also directed to a nonwoven web comprising a layer having a significant number of nanofibers with diameters less than one micron and a coating substance is applied to a surface of said nanofibers

A liquid epoxy resin composition comprising (A) a liquid epoxy resin, (B) a curing agent, (C) an inorganic filler, (D) a hygroscopic agent, and optionally, (E) a fluxing agent has the advantages of void-free fill, shelf stability and solder connection, and is thus advantageously used in the fabrication of flip chip semiconductor devices by the no-flow method.

An object of the present invention is to provide a material which can absorb moisture with ease and certainly, which exists in an equipment such as an electronic device. The invention relates to a moisture absorbing formed body comprising a hygroscopic agent and a resinous component.

Early treatment for a degenerated disc includes identifying a non-ruptured, dehydrated disc. A hygroscopic agent is then selected. This agent should pull water towards itself and have a hygroscopic compound with a molecular weight of at least 400 Daltons. Additionally, it may be desirable to selected hygroscopic compounds that are anionic or electrically neutral. The hygroscopic agent is then injected into the nucleus pulposus of the disc without any prior removal of the nucleus pulposus material. Because the surrounding disc structure allows for the passive diffusion of water into the nucleus pulposus, the hygroscopic agent will draw water into the nucleus pulposus, thus promoting tissue hydration within the disc. The hygroscopic agent may also include a biological agent and/or an imaging agent.

This invention is to provide a sheet product that is excellent in moisture absorption amount, moisture absorption speed and moisture release speed and is capable of keeping a powder from falling off and that can have a large content of a moisture adsorbent, and the sheet product of this invention contains (a) a moisture adsorbent formed of a tubular or fibrous metal oxide, (b) a cellulosic fibrillated fiber, and (c) an organic fiber having a fineness of 0.01 dtex to 0.45 dtex and is characteristically produced by a paper-making method.

The invention belongs to the technical field of a gelling agent for geologic hazard control as well as filling control of goaf and waste laneway or collapse craters after exploitation of other mines, and provides a formula and a method of a novel polymer composite gelling agent for grouting. The gelling agent comprises the following components in percentage by weight: 10-25% of bentonite, 5-20% of cellulose, 5-20% of vegetable gum, 10-15% of calcium hydroxide, 10-25% of inorganic hygroscopic agent, 0.5-1.5% of inorganic dispersant, 0.5-2% of inorganic flocculent, 6-18% of organic flocculent, and 5-15% of alkali metal carbonate. The gelling agent is used for processing and crushing, mixing with water, and injecting to slurry for gelling. According to the invention, the characteristics of high-hydroscopicity mineral matters and hydroscopic synthetic resin are sufficiently absorbed and utilized, and various ion groups are introduced and adjusted to obtain specific performance, so that the gelling agent has strong water solubility, can form hydrophile and water-insoluble gel in the slurry, and has excellent adhesion force to solids and dissolved matters in the slurry, good gelling property, strong water control function, high and adjustable jelling speed, low cost and no pollution.

The invention relates to the field of rubber materials, more specifically to an ethylene-propylene-diene rubber compound and its preparation method. By the adoption of an extrusion technology, the rubber compound is made from raw materials of a main material, auxiliary materials and additives, wherein the raw material contains 25-30 wt% of ethylene-propylene-diene raw rubber; the auxiliary materials contain 36-40 wt% of a strengthening agent, 15-17 wt% of a softener, 3.1-3.4 wt% of a hygroscopic agent, 0-10 wt% of a filler; and the additives contain 0.9-1.3 wt% of a promoter, 1.7-2.5 wt% of an activator, 7-10 wt% of a functional auxiliary agent, 0.4-0.5 wt% of a vulcanizing agent and 1.3-1.6 wt% of a modifier. The material provided by the invention has excellent weathering aging resistance, high-and low-temperature resistance, ultraviolet resistance and ozone resistance.

The invention discloses a thermosetting moisture-resistant welding seam sealant. The sealant comprises the following components by weight percent: 20-35wt% of PVC (polyvinyl chloride) resin, 20-35wt% of filler, 25-35wt% of plasticizer, 1-15wt% of tackifier, 5-10wt% of hygroscopic agent and 1-5wt% of stabilizer, wherein, the hygroscopic agent is composed of 2.5-5wt% of uncoated calcium oxide and 2.5-5wt% of coated calcium oxide. The thermosetting moisture-resistant welding seam sealant has the advantages of good waterproof and moisture-resistant effect and long-acting water and moisture resistance so as to prevent rework of the product due to poor appearance quality caused by moisture absorption, thus improving production efficiency and lowering production cost.

Topical composition for enhanced local and systemic delivery of poorly soluble biologically active compounds, comprises of non-volatile solvent or mixture of solvents to dissolve active component, and moisture absorbent or mixture of sorbents to prevent precipitation or crystallization of insoluble material after application

The invention relates to an independent temperature and humidity control air conditioning system and an application method of the air conditioning system. The independent temperature and humidity control air conditioning system comprises a multi-split air conditioner and a humidity processing unit. The multi-split air conditioner comprises a condenser, a plurality of throttle valves, a plurality of indoor evaporimeters and a compression engine. The humidity processing unit comprises a heat pump cycle module and a dehumidification regeneration module. A liquid or solid hygroscopic agent process device is adopted by the dehumidification regeneration module. Each heat pump cycle module comprises an evaporator, a compressor, a condenser and a throttle valve. Each dehumidification regeneration module comprises a dehumidification device arranged on the blowing-in path and a regeneration device arranged on a regeneration air path. The independent temperature and humidity control air conditioning system and the application method of the air conditioning system can be widely suitable for the regulatory demands of the independent temperature and humidity control air conditioning system over the humidity, can achieve the high-efficient operation of the air conditioning system better. The independent temperature and humidity control air conditioning system and the application method of the air conditioning system can be widely used for regulating the temperature and humidity indoors of different kinds of small-size public buildings and other sites.

The invention relates to a multistage rotary-wheel dehumidification device with auxiliary heat rejection and an application method thereof. The device comprises a precooling processing unit, solid hygroscopic agent rotary wheels, heat pump circulating units and an auxiliary cooling device, wherein the precooling processing unit is a heat exchanger provided with a heat exchange pipe; refrigerant or cold water in the heat exchange pipe is high temperature refrigerant of a temperature and humidity independent control air condition system; the solid hygroscopic agent rotary wheels comprise two stages arranged at an interval; each stage of rotary wheel comprises a dehumidification area positioned on an air supply path and a regenerating area positioned on an air exhaust path; the heat pump circulating units comprise two evaporators arranged in parallel and two condensers arranged in parallel; each evaporator is arranged on the air supply path at the rear part of the dehumidification area of each stage of rotary wheel; each condenser is arranged at the inlet end of the air exhaust path of the regenerating area of each stage of rotary wheel; and the auxiliary cooling device is arranged at the outlet end of the air exhaust path of the regenerating area of the first stage of rotary wheel. The multistage rotary-wheel dehumidification device is widely applicable to the requirement for the humidity adjustment of the temperature and humidity independent control air condition system, and can better realize the efficient operation of an air condition system.

The invention provides a dehumidify rotating wheel heating regenerating mechanism used for rotating wheel dehumidifiers, which has: a dehumidify rotating wheel (R) with a hygroscopic agent carrier coated with hygroscopic agent; a shielded enclosure (2) partially covering the dehumidify rotating wheel from two sides and marking out shield areas from the upper area of the dehumidify rotating wheel, a rotating wheel drive mechanism enabling the dehumidify rotating wheel to rotate and a heating mechanism only heating the hygroscopic agent in the shield area to steam the moisture sucked by the hygroscopic agent to regenerate the hygroscopic agent. The invention heats the hygroscopic agent coated on the hygroscopic agent carrier and belt-shaped heating parts from inner to outer, so as to sufficiently utilize the heat energy, thereby effectively preventing the loss of heat energy when heating the hygroscopic agent by using hot air and lowering the energy consumption.

The invention discloses a modified starch/polyacrylamide textile size composition and a preparation method thereof. The invention is characterized in that 95.0-99.9 parts of the modified starch and 0.1-5.0 parts of the polyacrylamide are physically mixed under the state of dry powder, after 625-1667 parts of de-ionized water are added into the mixture and evenly stirred, 0-5 parts of sizing grease, 0-5 parts of hygroscopic agent and 0-20 parts of other sizing materials are added and the mixture is heated to boil for 1-1.5h and lasts 5-10min for heat preservation, and the modified starch/polyacrylamide textile size composition is prepared, with the solid content of the serosity standing at 6%-16%. The sizing materials have obviously improved the mechanical property, can replace the environment-polluting PVA sizing material in large quantity and reduce the cost of the sizing materials; after the PAM and the modified starch are mixed together, the compatibility is good and the viscosity stability is excellent, the film forming of the sizing materials is intact, the surface of the sizing film is level and smooth, and the adhesion property and the sizing property of the serosity to the yarns are improved.

The invention discloses a weaving sizing agent composition mixed by the starches with different modification degrees and preparation method thereof, which is characterized in: adding 2-8 parts of native starch or modified starch with viscosity of 13.1mPas-480mPas, 2-8 parts of modified starch with viscosity of 3mPas-11.4mPas into a mixing machine, mixing them physically in dry powder state; adding 0-0.5 part of sizing grease, 0-0.5 part of hygroscopic agent, 0-0.1 part of antistatic agent and 0-2 parts of other sizing agents into the mixing machine, mixing uniformly, and obtaining the weaving sizing agent composition. The two starch components in the composition have the teamwork effect for increasing and reducing viscosity, obviously reduces apparent viscosity of the sizing agent, increasing the agent film fracture intensity and fracture work, and reduces sizing agent cost.

Provided is a moisture-absorbing material having, in the following order: a moisture-permeable polymer layer; a moisture-absorbing layer having a porous structure and containing amorphous silica with an average secondary particle diameter not exceeding 10 μm, a water-soluble resin and a moisture-absorbing agent; and a moisture-proof layer.

The invention relates to a high-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof. The high-efficiency extender comprises the following components: filler, organic reinforced filler, emulsifier and moisture absorbent. The preparation method of the high-efficiency extender is simple and convenient to use, the high-efficiency extender can be added in the synthesis process of urea formaldehyde resin and adhesive mixing mainly for sealing hydrophilic groups in urea formaldehyde resin, increasing the toughness and wettability of reinforced urea formaldehyde resin and promoting the water in the urea formaldehyde resin to evaporate. The high-efficiency extender can effectively solve the problem of low prepressing performance which is causedwhen high water content single plates are pressed to form plywood, and can obviously improve the water resistance of the plywood. Compared with the conventional plywood pressed after adhesive mixing by using flour, the plywood pressed after the high-efficiency extender disclosed by the invention is added into the urea formaldehyde resin according to an added amount of 30 to 35 weight percent has the advantages that: the adhesive consumption is reduced by 20 to 30 percent; and the comprehensive cost of each ton of artificial plates is saved by 30 to 50 yuan.

The invention discloses an electrical control cabinet, and the electrical control cabinet comprises a cabinet body and a cabinet door which is disposed at the front side of the cabinet body and can be opened or closed. The electrical control cabinet also comprises two air incoming mechanisms, which are respectively disposed at the top and bottom of the cabinet body, and each of the air incoming mechanism comprises a plurality of air inlets which are arranged in a rectangular manner; two air outgoing mechanisms which are respectively disposed at the left and right sides of the cabinet body and are respectively at the centers of the two air incoming mechanisms; two separating plates which are horizontally disposed in the cabinet body; a dust removing mechanism which comprises two dust removing boxes disposed in the upper and lower spaces; a dehumidifying mechanism which comprises a plurality of heaters, a plurality of housings accommodating the heaters, a plurality of condensers, a hygroscopic agent, and a water tank; two humidity sensors which are respectively disposed in two second through holes; and a controller which is disposed in the lower space. The electrical control cabinet is simple in structure, is good in heat dissipation and dustproof effects, and is higher in economical and practical values.