465 results about "Hygroscopicities" patented technology

The invention discloses a corrosion-resistant hygroscopic coat and a preparation method thereof. The coat comprises an upper layer and a lower layer, wherein the lower layer is a corrosion-resistant ground coat, and the upper layer is a hygroscopic surface coat. The preparation method of the coat comprises the steps of: (1) coating water-based corrosion-resistant ground paint A on a base material, and drying the paint A to form a corrosion-resistant ground coat with the thickness being 0.1-5.0g / m<2>; and (2) cooling the corrosion-resistant ground coat, coating water-based corrosion-resistant ground paint B on the corrosion-resistant base coat, and drying to form a hygroscopic surface coat with the thickness being 0.5-100g / m<2> so as to obtain a corrosion-resistant hygroscopic coat on the base material. The invention is simple in preparation process, suitable for continuous production, high in production efficiency, and environment-friendly, so that the good binding force is formed between the formed coats and the base material and among the coats, and obtained material is good in hygroscopicity, corrosion resistance and heat transfer, attractive in appearance, stable in performance, and suitable for the preparation of a rotating wheel of a dehumidifier.

Packaged patch (10) according to the invention comprises patch (2) situated in space (4) inside patch package (3) composed of laminated packaging material (1), and its edges are sealed. Laminated packaging material (1) comprises hygroscopic material layer (13) made of LDPE containing 20–40 wt % of an inorganic filler, situated between moisture-permeable material layer (14) made of LDPE and having a moisture permeability of 40–120 g / m2 / day and a screen material layer which blocks penetration of moisture, etc. and is composed of HDPE layer (12) and aluminum foil (11). The saturation hygroscopicity of laminated packaging material (1) is 2–30 g / m2 under atmosphere conditions with a temperature of 25° C. and a relative humidity of 75%. This construction sufficiently reduces the effect of moisture on a drug in patch (2) and allows patch (2) to be held in a stable state for prolonged periods, while also improving the economy and handleability of patch package (3).

The present invention provides a novel packaging laminate designed particularly for packaging highly hygroscopic, pelleted, flowable materials. It is a multilayer structure which incorporates a layer of heat-sealable polymeric material which has had a thin film of aluminum deposited onto it by vapour coating. This layer combined with a further effective barrier layer provides the low WVTR in the range required by such highly hygroscopic materials. This laminate can be used with additional structural layers of paper or plastic, to form bags that have the features of very low WVTR, excellent puncture resistance, and excellent heat sealability.

The invention relates to a processing technology of super-soft and high-hygroscopicity untwisted yarn textile. Raw materials of the untwisted yarn textile comprises warp yarns, weft yarns and water-solubility yarns, wherein the warp yarns are composed of anion polypropylene fibers, bamboo carbon fibers and cotton fibers with the wet to dry weight ratio of 15%:30%:55%, the weft yarns are composed of milk protein fibers, silk fibers and porous superfine moisture-guiding polyester filament yarns with the wet to dry weight ratio of 50%:30%:20%, and the water-solubility yarns are composed of water-solubility vinylon short fibers or water-solubility PVA fibers. After twisting and untwisting processing, a twisting direction and an untwisting direction are opposite, forward-direction twist degree and backward-direction twist degree are the same, and therefore after vinylon dissolving, the cotton fibers are in a single-fiber untwisting state in fur warp yarns, and the textile has high hygroscopicity and softness. The textile can be applied to clothing, home textile, sports goods and medical health care.

The invention relates to the technical field of pouring sealant, in particular to modified epoxide resin pouring sealant and a preparation method of the modified expoxide resin pouring sealant. The modified epoxide resin pouring sealant achieves improvement based on the prior art. The pouring sealant is composed of a component A and a curing agent. The weight ratio of the component A to the curing agent is 100 to 3-15, wherein the component A comprises, by weight, 1.0-8.0% of thinner, 25.0-39.0% of nano filler, 0.5-4.5% of flexibilizer, 0.08-0.45% of coupling agent, 0.08-0.45% of pigment, and the balance grapheme modified epoxide resin, and the total weight is equal to 100%. Compared with the prior art, due to addition of the grapheme modified epoxide resin and the nano filler, the pouring sealant is capable of improving high and low temperature resistant impact properties, capable of reducing hygroscopicity and a dilatation coefficient, capable of prolonging storage time, capable of strengthening dehiscence resisting capacity, and capable of having great value of industrial application.

Single or multi-compartment detergent pouch having walls composed of a water-soluble or dispersible water-containing polymer film, said pouch having at least one compartment containing a liquid composition and preferably at least one compartment containing a hygroscopic powder composition characterised in that the liquid composition comprises a moisture regulator system such that at equilibrium at 40% relative humidity and 21.1° C. (70° F.) the amount of water in the film is within about 30%, preferably within about 10% of that of the native film.

Provided are a composition for forming film which can form porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; porous film and a method for forming the film; and a high-performing and highly reliable semiconductor device comprising the porous film inside. More specifically, provided is a composition for forming porous film, the composition comprising siloxane polymer and one or more quaternary ammonium salts represented by following formula (1) or (2): [(R<1>)4N]+[R<2>X]<-> (1) Hk[(R<1>)4N]m<+>Y<-> (2) wherein X represents CO2, OSO3 or SO3; Y represents SO4, SO3, CO3, O2C-CO2, NO3 or NO2; and k is 0 or 1, m is 1 or 2 and n is 1 or 2 in proviso that n=1 requires k=0 and m=1, and n=2 requires k=O and m=2, or k=1 and m=1.

The present invention is to provide a laminate which is halogen-free, has sufficient flame retardancy even when a thickness is not more than 0.2 mm, and has sufficient humidity resistance and hygroscopic solder heat resistance. A resin composition comprising: (A) a compound having at least two or more maleimide groups; (B) a phenolic resin; and (C) an epoxy resin; wherein at least one of said (B) or (C) has a naphthalene ring; the total weight of the naphthalene ring when calculated using the OH equivalent and epoxy equivalent of (B) and (C) respectively is not less than 20 weight % to the total weight of (A), (B) and (C) components; and the total sum of the content ratio of the (A) component and that of the naphthalene ring is not less than 65 weight % to the total weight of the (A), (B) and (C) components, and a prepreg and laminate obtained from the same.

The invention provides a preparation method of silk-like fabric, which comprises the steps: selecting natural cellulose and modified polyester, preparing yarns, warping, sizing, drafting, weaving anddesizing to obtain the silk-like fabric. The silk-like fabric retains the advantages of good hygroscopicity, high melting resistance, heat insulation and antistatic property in natural cellulose, andalso has the performances of stable size and high elasticity in polyester, and in addition, the fabric far exceeds the natural silk in terms of gloss and hand feeling. The preparation process of the method is simple, the cost is low, and a product with high added value can be attained. The method is suitable for large-scale popularization in industry.

The invention provides a dexrabeprazole sodium monohydrate crystal form. The invention is characterized in that the dexrabeprazole sodium monohydrate crystal form has characteristic diffraction peaks at 10.5, 13.4, 17.1, 18.0, 18.5, 18.9, 19.5, 23.0, 23.3, 27.1 and 31.6 degrees in an X-ray powder diffraction spectrum represented by Cu-Kalpha radiation and 2theta; and an absorption peak exists at about 148.27 DEG C in a differential thermal analysis atlas of the dexrabeprazole sodium monohydrate crystal form. The crystal form has relatively high stability, solubility and dissolution, and relatively low hygroscopicity. The invention also provides a preparation method for the dexrabeprazole sodium monohydrate crystal form. The preparation method is simple, high in yield and low in preparation cost, and the quality of products is high.

A method of depositing a fluorinated borophosphosilicate glass (FBPSG) on a semiconductor device as either a final or interlayer dielectric film. Gaps having aspect ratios greater than 6:1 are filled with a substantially void-free FBPSG film at a temperature of about 480 DEG C. at sub-atmospheric pressures of about 200 Torr. Preferably, gaseous reactants used in the method comprise TEOS, FTES, TEPO and TEB with an ozone / oxygen mixture. Dopant concentrations of boron and phosphorus are sufficiently low such that surface crystallite defects and hygroscopicity are avoided. The as-deposited films at lower aspect ratio gaps are substantially void-free such that subsequent anneal of the film is not required. Films deposited into higher aspect ratio gaps are annealed at or below about 750 DEG C., well within the thermal budget for most DRAM, logic and merged logic-DRAM chips. The resultant FBPSG layer contains less than or equal to about 5.0 wt % boron, less than about 4.0 wt % phosphorus, and about 0.1 to 2.0 wt % fluorine.

The invention provides an oily liquid and oil state dust preventive composition, a preparation method and purpose for preventing dust from flying. The dust preventive composition comprises the following components per 100 parts by weigh of oily solution: 50-80 parts by weight of oily liquid acrylamide copolymerized high-molecules prepared by copolymerization of acrylamide monomers, and 2.0-10.0 parts by weight of surfactant with emulsification and dispersion functions, and 5.0-30.0 parts by weight of hygroscopic oil with dispersion and moisture evaporation inhibition function, and 0.2-10.0 parts by weight of one or two kinds of natural high-molecules with good dust adhesion strength or adhesion maintenance force. In the yellow sand region, tunnel, subway, mine, coal storage field, sand storage field, road and building sit with many dust, and a certain amount of dust composition can be diluted and stirred in water for sprinkling, because of differences of adsorption, viscosity, density and polarity, after the composition is coated on flying dust surface, the dust, the granular form dust and fine dust and other dusts can be prevented from flying.

The invention belongs to the technical field of flame retardance, and relates to a synergistic modification technology for an inorganic phosphorus-containing flame retardant APP (ammonium polyphosphate), in particular to synergistically modified APP, a preparation method for the same and application to flame-retardant polypropylene. In a solution system, an aluminum-containing compound with different chemical properties is selected as a precursor of a surface layer modification material, reaction is performed on the surface of an APP particle to generate a layer of ultrafine water-insoluble substances in situ to improve the performance of the APP such as hygroscopicity, water resistance, flame retardance and compatibility with a polymer, a micron-nanometer composite particle employing the APP as a matrix and employing aluminum hydroxide as a surface layer is finally prepared, and in addition, the effects of ultrafine treatment, surface modification, flame-retardant synergism and the like of the APP are achieved.

Molding sand having a high spherical degree and a low hygroscopicity produced from powder containing Al2O3 and SiO2, as main components by a flame fusion method, from which a mold having an excellent strength and a smooth surface is produced.

An adhesive composition which is reduced in gas generation upon heating (has low hygroscopicity), has high alkali resistance, has heat resistance of 200° C. or higher, and can be easily removed with a stripping liquid; and an adhesive film made with the adhesive composition. The adhesive composition is prepared using, at least as a major ingredient, an acrylic polymer produced from (a) styrene, (b) a (meth)acrylic ester monomer containing a cyclic skeleton, and (c) an alkyl (meth)acrylate monomer. The adhesive film has an adhesive composition layer formed from this adhesive composition.

The invention relates to a preparation method of a knitted wool-like warm fabric. The preparation method comprises the following steps: (1) raw material selection; (2) spinning technology implementation; (3) weaving technology implementation; (4) printing, dyeing and after-finishing. The knitted wool-like warm fabric is formed by performing the after-finishing, such as knitting, dyeing, carbon grinding and softening, on hemp / cotton / polypropylene fiber blended yarns and polyolefin elastic fibers, namely confirmable elastic fibers, which serve as raw materials. By the adoption of hemp, a product can realize antibacterial, health care and anti-ultraviolet functions; cotton fibers are high in hygroscopicity and spinnability; the polypropylene fibers are poor in heat conductance and high in heat insulation property; by the blending of the three types of fibers, a product has the functions of heat insulation, moisture absorption, breathing, bacteria prevention and ultraviolet resistance; by the weaving of the polyolefin elastic fibers, the product is extremely high in elasticity and conformality. The product is soft, fine, breathable, relaxing, high in heat retention property and suitable for making high-end warm coats or skirts, is a high-quality antibacterial, health care and warm fabric which has a wide market development prospect.

The invention provides a calcium alginate-graphene oxide nanofiber and a preparation method and a drug-carrying calcium alginate-graphene oxide nanofiber and relates to the technical field of nanofibers. The preparation method of the calcium alginate-graphene oxide nanofiber comprises the following step: carrying out microfluidics spinning on a mixed solution of calcium alginate and graphene oxideand a calcium chloride solution, thereby obtaining the calcium alginate-graphene oxide nanofiber. The technical problem that a sudden drug release phenomenon is caused as a conventional calcium alginate nanofiber is good in hygroscopicity and low in mechanical strength is alleviated. By adopting the preparation method provided by the invention, the graphene oxide is put into raw materials, so that the calcium alginate-graphene oxide nanofiber has hydrogen bond interactions with oxygen-containing groups on a graphene oxide sheet and hydroxyl in calcium alginate molecules, the hydrogen bond function of the calcium alginate and water molecules is weakened, the swelling velocity of the calcium alginate is reduced, and the sudden drug release phenomenon can be prevented.

The invention belongs to the technical field of macromolecular materials and particularly relates to a benzocyclobutene functional groups-contained benzoxazine monomer and a synthetic method and a use thereof. According to the synthetic method, amino-contained benzocyclobutene, phenolic compounds and formaldehydes (or paraformaldehydes) are adopted as raw materials, and the target monomer is obtained through synthesizing by adopting a solvent method or a solvent-free method. The benzoxazine monomer has lower viscosity at a certain temperature and can be cured through a method of heating or catalyzing by a catalyst. The obtained resin after curing has excellent thermal stability, mechanical properties, and extremely-low hygroscopicity, and thus, the resin can be used as an electronic packaging material, a high-temperature resisting and flame-retarding material, a high-performance composite material, an aerospace material and the like.

The invention discloses an empty capsule and a preparation method thereof. The empty capsule is high in stability, good in medicine compatibility and free of mutual effect. The empty capsule disclosed by the invention is low in water content and high in hygroscopicity resistance, so that content is unlikely to cake, and the shell of the capsule is unlikely to deform, harden and crisp for disintegration. The empty capsule has low requirements on storage conditions, does not crisp in low humidity environments and has good stability at a high temperature, and the body of the capsule does not deform. The raw materials of the empty capsule come from non-animal sources, thus no potential risk of accumulated growth hormone or medicine remaining in animals exists, and the empty capsule accords with the requirements of vegetarianism, special culture and religion.

A method for providing improved compaction, green density, green strength and surface finish properties in simulated stone and mineral-like materials from ceramic green bodies, based on addition of selected polymer additives during ceramic processing, is disclosed. Polymer additives having weight-average molecular weights from 30,000 to 1,000,000, glass transition temperatures from -50 to +90° C., and low hygroscopicity are particularly useful in providing enhanced properties of ceramic products involving processing of large-size granule intermediates.

The invention provides a transparent desiccant for maintaining dry environment in an electroluminescence device, which transparent desiccant has hygroscopicity, causes no crack even after moisture absorption and can maintain transparency. The transparent desiccant includes a mixture of an alkoxide of a metal of the group II, III or IV, and a transparent organic polymer not reacting with but compatible with this metal alkoxide.

A photo-destroyable quencher has the structurewherein X, n, and R1-R6 are defined herein, and at least one of R2, R3, R4, R5, and R6 is halogen, nitro, C1-12 fluorinated alkyl, cyano, aldehyde, C2-20 ester, C2-20 ketone, C1-20 sulfoxyl hydrocarbyl, C1-20 sulfonyl hydrocarbyl, or sulfonamide. The photo-destroyable quencher exhibits improved solution stability and reduced hygroscopic properties relative to triphenylsulfonium phenolate. A photoresist composition including an acid-sensitive polymer, a photoacid generator, and the photo-destroyable quencher exhibits increased contrast and / or critical dimension uniformity relative to corresponding photoresist compositions comparative photo-destroyable quenchers.

The invention provides a crystal form II of Apatinib mesylate. The crystal form II is characterized in that Cu-Kalpha 1 rays are adopted for radiation, X-ray powder diffraction represented by a 2theta angle has diffraction peaks when the 2theta angle is 5.02 degrees, 10.28 degrees, 11.13 degrees, 13.75 degrees, 15.65 degrees, 18.18 degrees, 20.35 degrees, 20.86 degrees, 21.58 degrees and 24.96 degrees, and an error range of a 2theta value is plus or minus 0.2. The crystal form II of Apatinib mesylate has the advantages of good stability, low hygroscopicity and high solubility.

Provided is a moisturizer having hygroscopicity and water retention ability, and also provided is a composition superior in antiseptic property and feeling on application, in addition to moisturizing property, and free of coloration and odorization.A moisturizer containing acylproline represented by the formula (1)wherein an acyl group represented by R1—CO— is an acyl group derived from a saturated or unsaturated fatty acid having 3-23 carbon atoms, or a salt thereof, and a composition containing (A) acylproline represented by the above formula (1) or a salt thereof and (B) bisphosphonate.

The invention relates to an optical resin for an optical protective film and a preparation method thereof. The optical resin for the optical protective film is prepared from the following components in parts by mass: 50-90 parts of a methyl methacrylate polymer, 10-50 parts of a heat-resistant stabilizer, 0.2-4.0 parts of a compatibilizer and 0.3-6.0 parts of a lubricant. The heat-resistant stabilizer is copolycarbonate micro powder. The preparation method of the optical resin for the optical protective film comprises the steps of preparation of the heat-resistant stabilizer, preparation of anoptical resin master batch, preparation of the optical resin and the like. The method is simple in process, low in energy consumption and easy to realize industrialization. Compared with PMMA opticalresin produced in the prior art, the prepared optical resin for the optical protective film has outstanding heat-resistant stability and toughness, relatively low hygroscopicity and volume resistivity and less surface static electricity and is not easy to adsorb dust on the premise of ensuring basic physical and mechanical properties and optical properties.