41results about How to "Reduce photodegradation" patented technology

The present invention relates to a pharmaceutical dosage form containing the active substance BIBW 2992 as the dimaleate salt, providing an immediate release profile of the active substance, further, the invention relates to compacted intermediates comprising BIBW 2992 dimaleate salt (BIBW 2992 MA₂) in form of a powder prepared using a combined roller compaction and sieving step from BIBW 2992 MA₂, intermediate blends prepared from said compacted intermediate as well as solid oral formulations providing an immediate release profile of the active substance, made from said compacted intermediate or from said intermediate blends ready for use/ingestion, e.g. capsule and tablet formulations such as uncoated or film-coated tablets prepared by direct-compression, and methods for their production.

A photoelectric conversion device and a method for manufacturing the same are provided. The photoelectric conversion device includes a first semiconductor layer including a first impurity element over a substrate, a second semiconductor layer including an amorphous layer and a crystal over the first semiconductor layer, and a third semiconductor layer including a second impurity element over the second semiconductor layer. The crystal penetrates between the first semiconductor layer and the third semiconductor layer.

A light emitting diode lighting device contains a light emitting diode and a lighting device component, wherein the device component comprises a polycarbonate composition comprising a bisphenol A polycarbonate; and 2,2′-(1,4-phenylene)bis(4H-3,1-benzoxazin-4-one) in an amount effective to provide a composition wherein a molded sample of the composition has a UL94 rating of V-2 or better at a thickness of 0.9 mm; an absorbance of less than 2 a.u. in the region of 370 to 380 nanometers; and an increase in yellowness index (ΔYI) of 12 or less at 2.5 mm thickness after heat aging at 130° C. for 5,000 hours.

The invention discloses a ternary nanocomposite Au/RGO-TiO2 nanotube array as well as a preparation method and application thereof. A graphene film and nano gold particles are modified on the surface of a titanium dioxide nanotube array; and the nano gold particles are also modified and distributed on the inner pipe wall and the outer pipe wall of the titanium dioxide nanotube array. By the ternary nanocomposite Au/RGO-TiO2 nanotube array as well as the preparation method and the application thereof, the adsorption capability and the electron conduction capability of the titanium dioxide nanotube array are further enhanced, the absorption range of a visible light zone is widened, and the photoelectric conversion efficiency is improved.

The invention relates to an ultraviolet-blocking window film. The ultraviolet-blocking window film consists of a scratch-resistant layer (1), a first polyester film or polyethylene film base material (2-1), a first ultraviolet-blocking pressure-sensitive adhesive layer (3-1), a second polyester film or polyethylene film base material (2-2), a second ultraviolet-blocking pressure-sensitive adhesive layer (3-2) and a release film (4) which are compounded into a whole, wherein the scratch-resistant layer (1) is obtained through ultraviolet curing after coating of a mixed material consisting of a scratch-resistant agent, ethyl acetate and methylbenzene; both the first ultraviolet-blocking pressure-sensitive adhesive layer (3-1) and the second ultraviolet-blocking pressure-sensitive adhesive layer (3-2) are obtained through thermosetting operation after coating of a mixed material consisting of a benzophenone ultraviolet absorbent, a benzotriazole ultraviolet absorbent, acrylic adhesive, a curing agent and a solvent. The ultraviolet-blocking window film can block ultraviolet lastingly.

The invention provides a two-component epoxy resin pouring sealant. The two-component epoxy resin pouring sealant is composed of a component A and a component B, wherein, the component A comprises the following raw materials in parts by weight: 100 parts of epoxy resin, 10-15 parts of diluents, 1-3 parts of an antifoaming agent, 50-70 parts of a filler, 5-8 parts of a fire retardant, 1-1.5 parts of color paste, 20-30 parts of nano iron oxide, and 10-15 parts of LIR; the component B comprises the following raw materials in parts by weight: 100 parts of a curing agent and 2-4 parts of a promoter; wherein a weight ratio of the component A to the component B is 2:1. The invention also provides a preparation method of the two-component epoxy resin pouring sealant. The two-component epoxy resin pouring sealant has the advantages of good mechanical property and strong toughness.

The invention relates to the technical field of preparation of delustering agents for special chemical fibers, in particular to modified titanium dioxide and a preparation method and application thereof. The modified titanium dioxide comprises titanium dioxide, wherein the surface of the titanium dioxide is in bonded with a polydopamine connecting layer, and the surface of the polydopamine connecting layer is bonded with a barium sulfate coating layer. According to the modified titanium dioxide, the uniformity of the coating layer is improved, the bonding strength of barium sulfate and titanium dioxide is enhanced, and the barium sulfate coating layer is prevented from falling off in the processes of grinding and application. Compared with a titanium dioxide delustering agent or a mixed delustering agent in the prior art, the modified titanium dioxide provided by the invention has better dispersity and weather resistance in practical application.

The invention relates to external wall flexible putty powder with a light reflection function and a preparation method thereof. The putty powder is prepared by mixing the following components in partsby mass: 20.0-35.0 parts of white cement, 10.0-50.0 parts of hollow glass beads, 5.0-25.0 parts of titanium dioxide, 5.0-12.0 parts of silicon dioxide powder, 0.1-60.0 parts of ground calcium carbonate powder, 3.0-7.0 parts of redispersible latex powder, 0.3-0.5 part of cellulose ether, 0.3-1.0 part of bentonite, 2.0-7.0 parts of metakaolin and 0.01-0.2 part of starch ether. The putty powder disclosed by the invention is outer wall flexible putty with relatively high ultraviolet reflection, sunlight reflection ratio, near-infrared reflection ratio and hemispherical reflectivity.

UV-photoprotective, topically applicable cosmetic/dermatological compositions contain:

• • (a) at least one silicon-containing s-triazine substituted with two aminobenzoate or aminobenzamide groups of specific formula (I),

A projector includes: an illumination device that emits an illumination light beam; a liquid crystal device that modulates the illumination light beam from the illumination device based on image information; a projection optical system that projects light modulated by the liquid crystal device; and at least one polarizing member that is disposed on a light exit side of the liquid crystal device and has in order a light-transmissive substrate, a pressure-sensitive adhesive layer, a KE polarizer, an adhesive layer, and a support layer, the polarizing member being positioned so that the adhesive layer is closer to a light exit side than is the KE polarizer.

The invention relates to a colored heat insulation window film for blocking ultraviolet light. The colored heat insulation window film is formed by compounding a scratch resisting layer (1), a first polyester film or polyethylene film base material (2-1), a dyeing heat insulation adhesive layer (3), a second polyester film or polyethylene film base material (2-2), an ultraviolet blocking pressure sensitive rubber layer (4) and a release film (5), wherein the scratch resisting layer (1) is obtained by carrying out coating and then ultraviolet curing on a mixture prepared from a scratch-resistant agent, ethyl acetate and methylbenzene; the dyeing heat insulation adhesive layer (3) is obtained by coating and then thermocuring a mixture prepared from a heat insulation substance, an adhesive, a curing agent, butanone, methylbenzene and dyes; the ultraviolet blocking pressure sensitive rubber layer (4) is obtained by coating and then thermocuring a mixture prepared from a benzophenone ultraviolet absorber, a benzotriazole ultraviolet absorber, an acrylate adhesive, a curing agent and a solvent. The window film can permanently block the ultraviolet light, has the effects of heat insulation and energy conservation, and is beautiful in appearance.

The invention relates to a high-strength weather-resistant modified silane sealant and a preparation process thereof, and belongs to the technical field of sealant preparation. The method comprises the following steps: taking papermaking black liquor rich in lignin as a raw material; firstly, removing cellulose and hemi-cellulose by tartaric acid acidolysis; carrying out acid precipitation under the assistance of hydrochloric acid to obtain lignin; then preparing lignin colloidal spheres, namely dried substances, from lignin through a supramolecular self-assembly method; wherein the surface effective phenolic hydroxyl group content is improved; then, enabling salicylaldehyde and acetic anhydride to react under the action of sodium acetate through a Perkin method to generate coumarin; compounding coumarin with the dried substances to obtain a compound weather-resistant reinforcing additive, and finally mixing the compound weather-resistant reinforcing additive, silane modified polyetherresin and other auxiliary materials to finally obtain the high-strength weather-resistant modified silane sealant, which is high in strength, good in weather resistance and wide in application prospect.

The invention relates to an irradiation crosslinked halogen-free low-smoke cable sheath material used for photovoltaic cables. The irradiation crosslinked halogen-free low-smoke cable sheath material possesses high temperature resistance, ozone resistance, weather resistance, ultraviolet resistance, and excellent flame resistance, and is harmless for the environment and human body. The irradiation crosslinked halogen-free low-smoke cable sheath material is prepared from 20 to 40% of ethylene/vinyl acetate copolymer, 0 to 20% of low density polyethylene, 30 to 60% of aluminium hydroxide, 0 to 10% of calcium magnesium carbonate, 1 to 10% of a coupling agent and a cross-linking agent, 1 to 10% of a compatilizer, 0.1 to 1% of an antioxidant, 0.1 to 1% of a lubricating agent, and 0.1 to 1% of a stabilizing agent. The irradiation crosslinked halogen-free low-smoke cable sheath material is capable of solving a problem that conventional PVC sheath material is harmful for the environment and human body, is nontoxic, is green, is friendly to the environment, and possesses high temperature resistance, ozone resistance, weather resistance, ultraviolet resistance, and excellent flame resistance.

The invention discloses a preparation method of a fluorescent-response silica aerogel thin film, and belongs to the functional material technical field. The preparation method comprises the steps: dipping a clean glass substrate in a fluorescent silica sol, then lifting from the glass substrate to obtain a wet gel thin film, and then carrying out ordinary pressure drying on the wet gel thin film in an atmosphere of ethanol, to obtain the silica aerogel fluorescent thin film. The silica fluorescent sol is characterized by being prepared by the steps: firstly, mixing evenly tetraethyl orthosilicate with ethanol, then adding an oxalic acid solution, after a hydrolysis reaction is finished, adding ammonia water and an ethanol solution of a dye, and evenly stirring, to obtain the silica fluorescent sol. The method is simple and convenient, simple in used equipment, good in dispersibility, low in running cost, and suitable for preparation of the silica aerogel thin films doped with different functional molecules.

The invention provides a rooting agent for cuttage plants and belongs to the field of plant cuttage. The rooting agent comprises a rooting agent solution, an oxidized sodium alginate (AMSA-EDA) aqueous solution through stem grafting and esterifying of 2,6-diethyl aniline and an amination gelatin (AG) aqueous solution. The invention further provides a preparation method of the rooting agent for thecuttage plants. The preparation method comprises the steps that (1) the rooting agent solution is placed in a container, the AMSA-EDA aqueous solution is connected to an injection port of the upper portion of the container, the AG aqueous solution is connected to an injection port of the lower portion of the container, and during stirring, the solutions are injected into the container slowly separately for a reaction; (2) a reaction system is placed under an ultraviolet lamp, and after an irradiation accumulation reaction is completed, the rooting agent for the cuttage plants is obtained. Therooting agent for the cuttage plants has the advantages that the preparation method for the rooting agent is simple in process and low in cost, degradation of effective components in the rooting agent during use can be effectively prevented, and the effect life is prolonged; meanwhile, the rooting agent can also prevent water loss of cuttings, the slow-release function is achieved, the rooting rate and survival rate of the cuttings are effectively increased, and the seedlings are increased and strengthened.