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.

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.

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, wherein

• • the 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, and
  • the organosiloxane resin composition comprises:
  • (E) colloidal silica and (F) a hydrolysis condensate of an alkoxysilane.

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 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.

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 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 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.