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30results about How to "Improve photoaging" patented technology

Sustained antioxidant cosmetic composition

PendingCN109939055AImprove process saccharification and photoaging problemsSkin for a long timeCosmetic preparationsToilet preparationsChemistryPanthenol
The invention relates to the technical field of cosmetics, in particular to a sustained antioxidant cosmetic composition. The sustained antioxidant cosmetic composition comprises the following components: water, butanediol, beta-dextran, ascorbic acid, betaine, trehalose, yeast fermentation product filtrate, nicotinamide, Saviae Miltiorrhizae Radix extract, panthenol, hexanediol, octanoylhydroxamic acid, phloretin, sodium hyaluronate, glutathione, gamma-sodium polyglutamate, mannitol, squalane, hydrogenated lecithin, bisabolol, ginger root extract, tocopherol and ferulic acid. According to thesustained antioxidant cosmetic composition, the high-activity components are wrapped through the pharmaceutical principle of slow-release permeation of micro-molecular organisms, the high-activity components quickly reach a target position of skin when in use, the antioxidant activity is slowly released, the problems of saccharification and photo-aging in the process are simultaneously improved,the function of protecting the skin for a long time is achieved, the skin is not dark all day, and the problems of skin allergy, acne and color spots are effectively solved.
Owner:上海科颜生物科技有限公司

Modified carbon fiber reinforcement asphalt pavement antiskid material and method for preparing same

The invention provides a modified carbon fiber reinforcement asphalt pavement antiskid material and a method for preparing the same. The modified carbon fiber reinforcement asphalt pavement antiskid material comprises surface-modified carbon fibers, SBS (styrene-butadiene-styrene) modified asphalt epoxy cementing materials, ultrafine organic montmorillonite, non-antiskid aggregate and antiskid aggregate. The SBS modified asphalt epoxy cementing materials comprise SBS modified asphalt, epoxy resin and curing agents. The modified carbon fiber reinforcement asphalt pavement antiskid material andthe method have the advantages that the modified carbon fiber reinforcement asphalt pavement antiskid material is good in abrasion resistance and antiskid performance, and accordingly the technical difficult problems of fast antiskid performance decay of asphalt pavements, poor durability of surface treatment layers and the like can be effectively solved; the method is simple, the modified carbonfiber reinforcement asphalt pavement antiskid material comprises the surface-modified carbon fibers, accordingly, functional group bonding of the surfaces of carbon fibers and asphalt and epoxy resincomponents can be promoted, the interfacial properties between the carbon fibers and asphalt-base materials can be reinforced, and the abrasion resistance and the durability of asphalt pavement antiskid surface treatment layer materials can be improved.
Owner:CHANGAN UNIV

Seamless silica gel conveying belt and manufacture method thereof

InactiveCN101638170AThere will be no phenomenon of sticking to the conveyed objectImprove thermal stabilityConveyorsTextiles and paperLiquid stateEngineering
The invention relates to a seamless silica gel conveying belt. The conveying belt forms a closed hybrid layer by a joint-free closed base belt and silica gel, an outer silica gel layer is designed onthe outer surface of the closed hybrid layer, and the closed hybrid layer and the outer silica gel layer are integrally molded into a whole in such a way that liquid silica gel is poured and spread onthe joint-free closed base belt. The manufacture method of the conveying belt comprises the following steps: (1) connecting the head and the tail of a plane strip base belt to be woven into the joint-free closed base belt; (2) mounting the joint-free closed base belt on a gel spreading machine; (3) starting the gel spreading machine, pouring the liquid silica gel on the joint-free closed base belt and spreading the liquid silica gel by a scraper on the gel spreading machine; (4) after the silica gel is solidified, abrading the outer surface of the outer silica gel layer by an abrading machine; (5) taking the product out of the machine and putting into a warehouse. The seamless silica gel conveying belt produced by the method has seamless integration and high strength and quality without sticking a conveying object and meets the requirement of a super wide and / or a super long product by a user. The manufacture method has simpler working procedures.
Owner:周炳光

Sun-proof anti-aging polyethylene pipe

The invention relates to a sun-proof anti-aging polyethylene pipe comprising two layers of an inner layer and an outer layer, the inner layer is a pipe main body, and the outer layer is a sun-proof anti-aging protective layer. The outer layer thickness is 10%-15% of the overall pipe wall thickness, but is not less than 1mm. The outer layer material comprises the following components: by weight, 50-70 parts of mLLDPE (metallocene polyethylene), 50-30 parts of EPDM (ethylene-propylene-diene monomer), 0.3-4 parts of a chain extender, 0.2-0.5 part of a catalyst, 5-10 parts of carbon black, 1-2 parts of titanium dioxide, 0.5-1.5 parts of an antioxidant and 1-2 parts of a dispersant; the inner layer material is a HDPE (high-density polyethylene) composite material with the carbon black content being more than 2% and the carbon black grade being less than grade 3. The polyethylene pipe is prepared by high-speed mixing and mixed plasticizing of the outer layer material then use of a composite die for extrusion molding of the outer layer material and the inner layer material, compared with ordinary polyethylene pipes, the anti-aging performance is improved, the pipe service life is prolonged, the sun-proof anti-aging polyethylene pipe can be exposed on the earth surface for use, and the application scope of the polyethylene pipe can be expanded.
Owner:浙江经纬集团环保工程有限公司

Anti-aging auxiliary agent bag and preparation method thereof and application of anti-aging auxiliary agent bag in carbon fiber prepreg

PendingCN114058078AImproved resistance to thermo-oxidative and photoagingGood synergyAnoxomerPolymer chemistry
The invention belongs to the technical field of special auxiliary agents, and discloses an anti-aging auxiliary agent bag and a preparation method thereof, and application of the anti-aging auxiliary agent bag in carbon fiber prepreg. The anti-aging auxiliary agent bag is in a uniform transparent liquid state, and comprises the following components in percentage by mass: 45-60% of a liquid ultraviolet absorbent, 20-40% of a liquid HALS light stabilizer and 10-15% of an antioxidant. The preparation method comprises the following steps: stirring and mixing a liquid ultraviolet absorbent and a liquid HALS light stabilizer, then adding solid antioxidant powder, heating and stirring until the antioxidant powder is completely dissolved, filtering, and cooling to room temperature to obtain a clear and transparent anti-aging additive package product. The anti-aging auxiliary agent bag product provided by the invention can effectively solve the problems that the epoxy resin is not resistant to light aging and thermo-oxidative aging in a high-temperature curing process, has the advantages of small influence on the ground color of the epoxy resin and the like, and is very suitable for being applied to epoxy resin curing carbon fiber prepreg cloth.
Owner:江门市严恩化工科技有限公司

Cardanol/fluorocarbon resin/zinc powder composite marine salt mist-resistant paint and preparation method thereof

The invention belongs to the technical field of paint materials, and particularly relates to cardanol/fluorocarbon resin/zinc powder composite marine salt mist-resistant paint and a preparation methodthereof. The preparation method thereof comprises the following steps: enabling cardanol to be mixed with fluorocarbon resin and zinc powder, then adding a preservative sodium benzoate, and stirringmechanically at room temperature to mix to obtain cardanol/fluorocarbon resin/zinc powder composite marine antiseptic paint. When the marine salt mist-resistant paint is used, a curing agent hexamethylene diisocyanate trimer, which accounts for 10% of total mass, needs to be added, and coating can be carried out after curing for 15min. Paint can cure to form a film within 24h after curing. The fluorocarbon resin is utilized by a coating to improve the comprehensive use performance, wherein the shock resistance of the coating is improved to 100cm, the flexibility is improved to 2mm, the salt mist resistance reaches 3,000h, the light aging resistance reaches 3,000h, and the discoloration light loss is less than or equal to level 2; and the cardanol/fluorocarbon resin/zinc powder composite marine salt mist-resistant paint can be applied in the marine ship undercoat.
Owner:MINJIANG UNIV

Hot-pressing preparation method for aluminum-coated TPU (thermoplastic polyurethane) film resistance reduction microgrooves for airship skin

The invention relates to preparation methods for airship skin materials, in particular to a hot-pressing preparation method for aluminum-coated TPU (thermoplastic polyurethane) film resistance reduction microgrooves for an airship skin. The hot-pressing preparation method solves the problems of poor weather resistance, high resistance and poor heat insulation of skins. The preparation method includes: firstly, preparing an aluminum mould plate; secondly, cleaning the mould plate and coating release agent; thirdly, evaporating an aluminum film on the surface of a TPU film by the vacuum evaporation technique; and fourthly, pressing for 20-25 minutes under the pressure of 65-75N and at the temperature of 140-145 DEG C to obtain an aluminum-coated TPU film with resistance reduction microgrooves. By the preparation method, microgrooves which are high in resolution and aspect ratio are obtained, the aluminum layer on the surface of the film can reflect solar radiation to improve weather resistance, process equipment is simple, and cost is low. Further, the hot-pressing preparation method is used for preparation of resistance-reducing weather-resistant skin materials for near space airships.
Owner:HARBIN INST OF TECH
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