547results about How to "Strong UV Absorbing Properties" patented technology

An object of the present invention is to provide a metal oxide particle which exercises more excellent ultraviolet absorbency as a matter of course and combines therewith merits of, for example, either being shifted in ultraviolet absorption edge toward the longer wavelength side and being excellent also in the absorption efficiency of a long-wavelength range of ultraviolet rays, or having good transparency and, for example, even in cases where added into or coated onto substrates, not damaging the transparency or hue of the substrates. As a means of achieving this object, a metal oxide particle according to the present invention is a metal oxide particle such that a hetero-element is contained in a particle comprising an oxide of a specific metal element (M), wherein the metal oxide particle is: 1) a metal oxide particle in the form of a fine particle wherein the hetero-element is at least one specific metal element (M′); 2) a metal oxide particle wherein the hetero-element includes at least two specific metal elements (M′); 3) a metal oxide particle wherein: the hetero-element is a more specified metal element (M′) and at least a part thereof is 2 in valence; or the metal element (M) is a more specified metal element and the metal oxide particle is in a specific range in crystal grain diameter in the vertical direction to each of the (002) plane and the (100) plane; or 4) a metal oxide particle wherein: the hetero-element is at least one specific nonmetal element and an acyl group is contained in the particle; or the hetero-element includes at least two specific nonmetal elements; or the hetero-element is at least one specific nonmetal element and a component derived from a metal element (M′) other than the metal element (M) is contained in the particle.

A window glazing (10) suitable for use in automotive applications wherein a switchable film (18) is protected from UV exposure and over-temperature exposure by a coating (14) that reflects IR and UV light in combination with an interlayer (16) that absorbs UV light.

There is provided a photostable and synergistically enhanced topical sunscreen composition. There is further provided a method of enhancing the photostability of a sunscreen active in a topical sunscreen composition. There is further still provided a method of synergistically enhancing the UV absorbance of a sunscreen active in a topical sunscreen composition. The preferred compositions and methods of the present invention use a dibenzoylmethane sunscreen active, an extract of Kaempferia Galanga, and a cosmetically acceptable vehicle.

The invention provides hard wax oil prepared from the following components in parts by weight: 40-80 parts of vegetable oil, 3-15 parts of biological wax, 5-15 parts of rosin glycerol resin, 0.2-1.0 part of drier, 0.1-0.5 part of anti-skinning agent, 0.1-0.3 part of mixed UV (Ultra-Violet) absorber and 0.1-0.3 part of defoaming agent. The preparation method of the hard wax oil, which is provided by the invention, comprises the steps of generating bodied oil with relatively smaller molecular weight under the action of nitrogen protection and adding an oil-based UV absorber with synergy and a hindered amine light stabilizer, and thus the UV absorption performance of the hard wax oil is improved. The prepared hard wax oil is suitable for outdoor woodenware products, has good weatherability, favorable water resistance and ideal durability effect under the condition that sunlight and UV rays exist, and the hard wax oil hardly sags and has tough firm formed in coating construction, belongs to natural coatings, accords with the environmental protection requirement and can be also used for decorating private indoor rooms.

The invention belongs to the field of functionalized nanometer silica, and particularly relates to functionalized nanometer silica with an ultraviolet ray absorption function group grafted on the surface, and a preparation method thereof. According to the present invention, and an amino silane coupling agent is adopted as bridging, and a o-hydroxybenzoyl group adopted as an ultraviolet ray absorption agent group is chemically grafted on nanometer silica particles, wherein the amino silane coupling agent about accounts for 3-12% of the total weight of the functionalized nanometer silica with the ultraviolet ray absorption function group grafted on the surface, and the o-hydroxybenzoyl about accounts for 2-20% of the total weight. The functionalized nanometer silica with the ultraviolet ray absorption function group grafted on the surface has characteristics of excellent ultraviolet ray absorption capacity and good dispersibility, and can be provided for improving the light oxidation aging resistance of the polymer during the use process and increasing the comprehensive mechanical property of the polymer material when the functionalized nanometer silica is adopted as the polymer auxiliary agent.

The invention discloses a microcapsule wrapping a solid sun-screening agent, a preparation method and application thereof. The microcapsule comprises the solid sun-screening agent and a natural polymer. The solid sun-screening agent is wrapped in the microcapsule formed by the natural polymer. The solid sun-screening agent is an inorganic ultraviolet screener, an organic ultraviolet adsorbent or a mixture of the inorganic ultraviolet screener and the organic ultraviolet adsorbent. The natural polymer is agar, agarose, cellulose, chitosan or a derivative thereof. The microcapsule provided by the invention can be used in cosmetic to effectively prevent the solid sun-screening agent from being decomposed, and the sun-screening agent is separated from skin, so that irritation to skin is reduced. Hydrophilic natural polymer can cover color, improve feel and enhance cooperation in cosmetic.

The invention relates to a nano SiO2 hybridized acrylic acid ester soap-free emulsion and a manufacturing method, wherein the nano SiO2 hybridized acrylic acid ester soap-free emulsion is prepared by the following components by weight: 5-20 parts of modified silica sol, 40-70 parts of deionized water, 20-50 parts of double bond containing polymerisable monomer, and 0.1-0.3 parts of initiator. An aqueous resin prepared by the invention has good water proofness, mechanical property and weatherability, can be used for preparing an aqueous woodenware paint, a construction anticorrosion paint and an anticorrosive paint with high ornamental feature.

It is an object of the present invention to provide a laminate having excellent weatherability and abrasion resistance as well as adhesion.The present invention relates to a laminate comprising a base, a first layer formed by thermally curing an acrylic resin composition and a second layer formed by thermally curing an organosiloxane resin composition, all of which are formed in the mentioned order, whereinthe acrylic resin composition comprises:(A) an acrylic copolymer which contains at least 70 mol % of a recurring unit represented by the following formula (A):wherein X is a hydrogen atom or methyl group, and Y is a methyl group, ethyl group, cycloalkyl group, hydroxyalkyl group having 2 to 5 carbon atoms or triazine-based ultraviolet absorber residue;(B) a blocked polyisocyanate compound;(C) a curing catalyst; and(D) a triazine-based ultraviolet absorber, andthe organosiloxane resin composition comprises:(E) colloidal silica and (F) a hydrolysis condensate of an alkoxysilane.

Glass for gas discharge tubes, which are used in fluorescent lamps, EEFL lamps, LCD displays, computer monitors, telephone displays and TFT displays, and a process for making it are described. The glass contains, in % by weight based on oxide content: SiO2, 60-75; B2O3, >25-35; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-20; K2O, 0-20; MgO, 0-8; CaO, 0-20; SrO, 0-5; BaO, 0-5; ZnO, 0-3; ZrO2, 0-5; TiO2, 0-10; Fe2O3, 0-0.5; CeO2 0-0.5; MnO2, 0-1.0; Nd2O3, 0-1; WO3, 0-2; Bi2O3, 0-5; MoO3, 0-5; As2O3, 0-1; Sb2O3, 0-1; SO42−, 0-2 C−, 0-2 and F−, 0-2, wherein ΣLi2O+Na2O+K2O=0-25% by weight; ΣMgO+CaO+SrO+BaO=0-20; ΣFe2O3+CeO2+TiO2+PbO+As2O3+Sb2O3 is at least 0-10; and ΣPdO+PtO3+PtO2+PtO+RhO2+Rh2O3+IrO2+Ir2O3 is from 0.00001-0.1.

The present invention relates to a UV absorbing optical element comprising a polymer optical element substrate, and a UV light absorbing amount of a tris-aryltriazine-based UV absorber incorporated in said substrate. The present invention also provides a method for forming a UV absorbing optical element.

The invention relates to a method for synthesizing 4-(4,6-dichloro-1,3,5-triazine-2-oxo)-2-hydroxyl phenyl benzophenone serving as a novel reactive ultraviolet absorbent (UV-DTHM) and application of the UV-DTHM to the uvioresistant arrangement of cotton fabrics, and belongs to the technical field of functional aids. The method comprises the following steps of: performing etherification reaction of diphenyl ketone (UV-O) and trichloro-s-triazine (CYC) which serve as raw materials under the catalysis of sodium hydroxide, wherein a ratio of UV-O to CYC to NaOH is 1:2.0:1.5; reacting in a mixed solvent of acetone and water at the temperature of 0 DEG C for 5 hours to obtain the UV-DTHM, and the yield of the UV-DTHM is 82.5 percent. The UV-DTHM has the excellent ultraviolet absorption performance, and is high in heat stability; and active groups are contained in a molecular structure and can be reacted with substances containing groups such as animo, hydroxyl and the like. The UV-DTHM is applied to the uvioresistant arrangement of white cotton fabrics to achieve an excellent uvioresistant effect (the value of an ultraviolet protective factor (UPF) reaches 67), and the UPF value is kept at 43+ / -3 basically after the cotton fabrics are soaped for 30 times, so the UV-DTHM has an excellent soaping-resistant effect.

The invention discloses a preparation method of a kaolin / 1-butyl-3-methyl bromide imidazole intercalated nanocomposite. The method comprises the following steps: firstly, directly intercalating the kaolin by using dimethyl sulfoxide to obtain a kaolin / dimethyl sulfoxide intercalated composite; then intercalating the kaolin intercalated composite by using methyl alcohol to obtain a kaolin / methyl alcohol intercalated composite; and finally, enabling synthesized 1-butyl-3-methyl bromide imidazole and the kaolin / methyl alcohol intercalated composite to carry out intercalating reaction in room-temperature and atmospheric environment so as to obtain a kaolin / 1-butyl-3-methyl bromide imidazole intercalated nanocomposite. Through the preparation method of the kaolin / 1-butyl-3-methyl bromide imidazole intercalated nanocomposite, imidazole ionic liquid carries out intercalating reaction with the kaolin / methyl alcohol intercalated composite under the room-temperature and atmospheric environment for the first time so as to obtain the kaolin / 1-butyl-3-methyl bromide imidazole intercalated nanocomposite; and the kaolin / 1-butyl-3-methyl bromide imidazole intercalated nanocomposite is integral in structure, stable in property, good in heat resistance, fluorescence property and ultraviolet absorbency.

The invention relates to a multifunctional reactive ultraviolet absorbent which is used for cotton fiber, a synthetic method and application, the general formula I of the absorbent is as the right formula, the synthetic method comprises that: triclosan antibacterial compounds, hindered amine light stabilizing compounds or amino silicone oil softening finishing compounds and other functional finishing agents are added into cyanuric chloride, the solvent is water, the reaction time is 1-2h, at 0-5 DEG C, the groups of functional finishing agents are introduced; (2) the materials connecting the groups are added, the solvent is water, the reaction time is 3-4h, at 40-50 DEG C, the two triazine rings are connected; (3) or with other reacting active material, water as the solvent, reacting 3-4h, at 80-90 DEG C, other active groups are introduced on the triazine rings. The multifunctional reactive ultraviolet absorbent has the advantages of good reactivity, water soluble, ultraviolet absorbing capacity and other finishing functions as antibacterial property, light stability on cotton fabric.

The invention provides a method for preparing a waterborne poly(urethane acrylate) / nano-titanium dioxide hybrid material. The method comprises the following steps: (1) firstly, preparing TBT (tetrabutyl titanate) sol; (2) adding mono-polyol and isocyanate as raw materials to a container, adding a hydrophilic chain extender, increasing the temperature of the reaction system to 30 to 80 DEG C and further adding catalysts in the presence of NMP (N-methyl pyrrolidone) as a solvent; and (3) adding triethylamine as a salt-forming agent, reacting for 10min to 60min, and dispersing with water in the presence of ethylenediamine as a chain extender to obtain the waterborne polyurethane emulsion; adding a small amount of gamma-glycidoxy-propyl-tri-methoxy-silane, stirring for 10min to 90min, adding the TBT sol to the reaction system, further dropwise adding a small amount of hydrochloric acid, and keeping stirring for 12h to 48h to obtain the waterborne poly(urethane acrylate) / nano-titanium dioxide hybrid material. The hybrid material of the invention has the advantage that the weather resistance, mechanical properties, coating transparency and other properties of the hybrid material are greatly increased.

The invention relates to surface modified aramid fiber and a preparation method thereof. The method comprises the following steps: aramid fiber with an amino group and a carboxyl group on the surfaceis modified with a siloxane gamma-glycidyloxypropyltrimethoxysilane in order to obtain silicon methoxylated aramid fiber; and the silicon methoxylated aramid fiber and polydopamine modified turbostratic boron nitride coated cerium oxide are reacted in order to obtain surface modified aramid fiber. Polydopamine modified turbostratic boron nitride coated cerium oxide has high ultraviolet absorption,at the same time has extremely low catalytic activity, in order to avoid destroy of photocatalysis on the fiber structure in a radiation process, and is an effective and safe high efficient ultraviolet absorbent. The surface modified aramid fiber has anti-UV function, high surface activity, high thermal performance and higher mechanical properties, and excellent comprehensive performance and higher utilization value. The preparation method is simple and controllable, and is suitable for large-scale production.

A composite spherical active carbon adsorbent is prepared by the following raw materials by weight: 100-120 parts of active carbon, 20-25 parts of clay, 6-8 parts of glyceryl triacetate, 15-20 parts of wooden saw dust, 5-7 parts of eleaostearic acid, 15-20 parts of walnut shell, 7-9 parts of polyacrylamide, 3-5 parts of titanium dioxide, 4-5 parts of modified diatomite, and a proper amount of water. The spherical active carbon adsorbent has advantages of reasonable composition, novel preparation technology and simple equipment structure, the prepared finished product reaches an ideal effect on the indexes of compressive strength, powder drop rate, iodine adsorption, benzene adsorption and desulphurization; and the spherical shape makes it easy for the adsorbent to flow, and makes it convenient for the adsorbent to be subpackaged and packaged by using current various packaging equipment. Titanium dioxide is used to make the adsorbent provided by the invention have advantages of very strong UV absorption performance, infrared reflection characteristic, self-cleaning performance, and sterilization and deodorization in the medical field.

The invention relates to an Eu-(TTA)3-1,10-phen / SiO2 core / shell type nano composite fluorescent material belonging to the preparation field of composite fluorescent materials. TTA is used as a first ligand and phen is used as a second ligand to prepare Eu-(TTA)3phen ligand which is the novel photoluminescence material and is hydrolyzed under the function of base catalyst by TEOS, and a layer of SiO2 shell is formed on the surface of a rare-earth composition so as to obtain rare-earth ligand nano particles with stable fluorescence intensity. The invention has the advantages of simple preparation process, low cost of raw materials, reaction at normal temperature and low energy consumption. Because the SiO2 shell is separated from oxygen and water in the air, compared with the Eu-(TTA)3phen fluorescent material, the Eu-(TTA)3phen / SiO2 core / shell type nano composite fluorescent material has greatly improved stability under the ultraviolet irradiation, strengthened fluorescent emission intensity and better UV absorptivity.

The invention discloses a preparation method of nano calcium carbonate / titanium dioxide composite powder with a core-shell structure, belonging to the technical field of inorganic chemical synthesis. The preparation method for preparing the nano-level CaCO3 / TiO2 composite powder with the core-shell structure comprises the steps of leaching calcium carbonate by using a low-concentration titanium sulfate solution, then mixing leached calcium carbonate with a urea solution, and gradually dripping a high-concentration titanium sulfate solution or titanyl sulfate solution under heating conditions by using sodium dodecyl benzene sulfonate as a dispersing agent, thus preparing the nano CaCO3 / TiO2 composite powder with the core-shell structure. The preparation method is simple and feasible; an obtained product is relatively small and uniform in granularity and strong in ultraviolet absorption ability, shows the properties of titanium dioxide on the surface to a large extent, can be widely applied to the field of paper-making filler, coatings and the like, also can be used as an ultraviolet shielding material, and can be used for effectively reducing the cost of materials.

The invention relates to waterborne glass nano-paint containing composite nanometer nuclear particles and preparation. The paint is prepared from composite metal nanometer nuclear particles, nano-silicon dioxide modified by fluorinated alkyl silane, nano-silicon dioxide coated by nano-titania, organic silicon molecules modified by acrylic ester, modified nano-titania, waterborne polyurethane resin / polysiloxane resin composite resin, an additionally adsorbed adjuvant and other auxiliary ingredients. By certain modification and combination of composite nanometer nuclear particle ingredients andother ingredients, the performance of the paint is expanded, by mutual synergy between the ingredients, the coating material shows excellent properties, has excellent effects of high light transmitting performance, heat insulation performance, ultraviolet isolation / absorption performance, high adhesiveness, anti-aging stability, water dredging, dust prevention and self cleaning, and further has anintelligent energy-saving effect specific to environmental temperature.

The present invention provides a polarizing plate formed by laminating protective films respectively on both surfaces of a polarizing film comprising a polyvinyl alcohol resin with adhesive layers lying respectively therebetween. The protective film on one of the surfaces is a stretched polyethylene terephthalate film that contains an ultraviolet-absorbing agent and that exhibits a light transmittance of 10% or less at a wavelength of 380nm, while the protective film on the other thereof exhibits a light transmittance of 60% or more at a wavelength of 320nm. Further, each adhesive layer comprises a cured product of an ultraviolet-curable resin composition that contains an epoxy compound. The polarizing plate exhibits excellent ultraviolet absorbance, excellent tight adhesion between the polarizing film and the protective films, high wet-heat resistance, and high productivity, with no damage to the surface appearance.

The invention relates to a reaction type ultraviolet light absorber as well as a preparation method and application thereof. The reaction type ultraviolet light absorber comprises a compound adopts the chemical structural formula (I) shown in the description. The reaction type ultraviolet light absorber not only contains a classic ultraviolet absorber 2,4-dihydroxy benaophenonel structure, but also contains a unique double ethylenic bond structure, and is endowed with the properties of a crosslinking agent. The reaction type ultraviolet light absorber is simple and feasible in synthesis method and high in yield, can make up limitation of complicated synthesis process of the conventional reaction type ultraviolet light absorber, and can also be used as the crosslinking agent to be applied to preparation of high-molecular polymer. The provided ultraviolet light absorber with the properties of the crosslinking agent has an excellent application prospect in preparation of the high-molecular polymer.

The invention relates to a colored transparent heat insulation glass coating. The coating is formed by mixing a curing agent and a raw material composition of the following components in percentage by weight: A, 39 to 85 percent of organic silicon resin; B, 13.9 to 60 percent of nano antimony tin oxide (ATO) slurry; C, 0.1 to 0.8 percent of nano transparent pigment color paste; and D, 0.01 to 1 percent of flatting agent, wherein the consumption of the curing agent is 0.1 to 1.5 percent of the consumption of the organic silicon resin. The invention also discloses a preparation method of the colored transparent heat insulation glass coating. The colored transparent heat insulation glass coating has good heat insulation performance and transparency; the raw materials are easily obtained, the process is simple, and the method is low in cost and easy to realize industrialized production; and the coating is widely applied, can replace a heat insulation film on the automobile glass, and can also be applied to the surfaces of various building glasses.

The invention discloses preparation methods of distearoyl-phosphoethanolamine and amino polyethylene glycol derivatives thereof and relates to effective preparation methods of a medicinal carrier material phospholipids-distearoyl-phosphoethanolamine (DSPE for short) and amino polyethylene glycol derivatives of the distearoyl-phosphoethanolamine (NH2-PEG-DSPE for short). The preparation method of the distearoyl-phosphoethanolamine comprises the following steps of: firstly reacting phosphorus oxychloride with 1,2-distearoyl-glyceride to obtain phosphorylcholine monoester which is I for short; reacting the phosphorylcholine monoester with 2-hydroxyethyl-benzyqcarbamate to obtain DSPE containing amino-protecting group which is II for short; and carrying out catalytic hydrogenation on the II to remove the protecting group to obtain DSPE. The preparation method of the amino polyethylene glycol derivatives of the distearoyl-phosphoethanolamine comprises the following steps of: reacting DSPE with nitrine substituted PEG chloro-carbonic ester which is VI for short to obtain nitrine-polyethylene glycol DSPE derivatives which is III for short; and reducing the nitrine into amino by catalytic hydrogenation to obtain the amino polyethylene glycol derivatives of the distearoyl-phosphoethanolamine.

The invention discloses an Eu3+ / Eu2 doped aluminate multicolor fluorescent material and a preparing method thereof. A material matrix is composed of CaCO3 and Al2O3 with a molar ratio of 1:1. The molar fraction of the filler Eu2O3 accounts for 2% of the matrix. The molar fraction of the filler SiO2 accounts for x% of the matrix, wherein x=25, 50 or 200. The preparing method comprises the steps of weighing raw materials precisely according to the ratio, mixing the raw materials evenly, and then conducting grinding continuously till mixing is even; placing powder obtained from grinding in a corundum crucible, placing the corundum crucible in a muffle furnace for high-temperature solid-phase reaction for 8-20 h in the air atmosphere at the temperature of 1000-1300 DEG C, taking the corundum crucible out and cooling the corundum crucible to room temperature after the furnace is cooled to 900 DEG C, and obtaining a sample after even grinding. The preparing technology is simple, cost is low, toxicity and pollution are avoided, and the physical and chemical properties of the product are stable. The requirement for experiment equipment, especially the sealing performance of the experiment equipment is quite low, safety performance is high, and mass production can be achieved easily. Eu2+ emission is broadband emission, the intensity and position of an emission peak are adjustable, and ultraviolet absorption can be well achieved.

The invention belongs to analytical chemistry region, and relates to the method of measuring chiral isomer of by high efficiency liquid chromatography after pregabalin deriving. The method of precolumn derivation supplied by the invention has advantages of geniality reaction conditions, steady derivation offspring, fast reaction rate, little subsidiary reaction, etc. It could realize separation and measuration for pregabalin and chiral isomer containing pregabalin preparation.

The provided UV absorbent with supermolecular intercalation structure with interlaminar guest as BZO-anion (C16H16N3O4S)-. is prepared by inserting the anion of 5-benzotriazolyl-4- hydroxy-3-sec-butylbenzene sulfonic acid (BZO) into hydrotalcite layers for its intercalation feature. The product has chemical formula as [M2+1-xM3+x(OH)2] (C16H16N3O4S)-x*mH2O, absorptivity in UV band more than 90%, better thermal stability than BZO, and decomposition temperature of the interlaminar material about 450Deg, and can be used as the photoageing-proof additive for light-oxidative degradation resin (such as, polypropylene, polycarbonate and ABS).