332results about How to "Good optical clarity" patented technology

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and / or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

The invention discloses a colorless highly-transparent polyimide film as well as a preparation method and an application thereof. The film is prepared from semi-aromatic polyimide resin of which the structural formula is shown as formula I, wherein Al is an alicyclic structure, R1 is an aromatic diamine structure containing fluorine and sulfone, R2 is another aromatic diamine structure, and n:m=(0-400):1. The film has excellent optical transparency, colorless transparency of the film with great thickness (greater than or equal to 100 mu m) can be realized, the initial light-transmitting wavelength is below 300nm, and the light transmittance in a visible region is greater than or equal to 90%; and meanwhile, the film shows excellent heat resistance and mechanical property, and has important application values in the manufacturing of the photoelectric devices such as a solar battery, a display, an electronic book, an electronic label, a photoelectric sensor and the like.

The invention relates to a photosensitive composite which contains a specific ketoxime ester compound used as a polymerization initiator, an alkali-soluble resin, DPHA (Dipentaerythritol Hexaacrylate) and a colorant. The composite has good storage stability and also has high exposure sensitivity, good developing performance, no wrinkle on formed pattern surfaces and excellent solidifying effect when used for making black matrixes (BM) and RGB (Red Green Blue) of a color filter. The invention also relates to the application of the photosensitive composite in the production of the color filter, and the filter made from the photosensitive composite has high optical transparency and no light leakage.

An active matrix electro-wetting on dielectric (AM-EWOD) device includes a plurality of array elements arranged in an array, each of the array elements including array element circuitry, an element electrode, and a reference electrode. The array element circuitry includes an actuation circuit configured to apply actuation voltages to the electrodes, and an impedance sensor circuit configured to sense impedance at the array element electrode to determine a droplet property at the array element. The impedance sensor circuit is operated by perturbing a potential applied to the reference electrode. The AM-EWOD device includes a common row addressing line. The impedance sensor circuit further is operated by supplying voltage signals over the common addressing line to effect both a reset operation and an operation for selecting a row in the array to be sensed. The circuitry isolates the array element from the actuation voltage during operating the impedance sensor circuit.

The present invention relates to metal-containing compositions with refractive indices of at least 1.5 comprising a metal-containing precursor unit (MU), a prepolymer unit (PU), and a catalyst or an initiator capable of inducing a combining reaction of ethylenically unsaturated functional groups of the metal-containing precursor unit and reactive functional groups of the prepolymer unit. In another embodiment, the composition comprises MU and a catalyst or initiator capable of inducing a combining reaction of the metal-containing precursor units. Both MU and PU contain additional functional groups, which may be selected to impart compatibility with each other and to produce optically clear films. The metal-containing compositions can be used to produce films or articles having a transmittance of at least 90% and index of refraction in the range of 1.5 to 1.8 in the 400-700 nm range of light and 1.5 to 2.4 in the 150-400 nm range of light.

Fluorine-free photoacid generators and photoresist compositions containing fluorine-free photoacid generators are enabled as alternatives to PFOS / PFAS photoacid generator-containing photoresists. The photoacid generators are characterized by the presence of a fluorine-free aromatic sulfonate anionic component having one or more electron withdrawing groups. The photoacid generators preferably contain a fluorine-free onium cationic component, more preferably a sulfonium cationic component. The photoresist compositions preferably contain an acid sensitive imaging polymer having a lactone functionality. The compositions are especially useful for forming material patterns using 193 nm (ArF) imaging radiation.

A bright metal laminate comprises a highly reflective metal layer applied to a supporting baseweb comprising a flexible thermoplastic and thermoformable polyurethane film. The metal film comprises indium or an alloy of indium and is applied to a surface of the baseweb by vapor deposition techniques. An optically clear polymeric outer layer of preferably acrylic, PETG or polycarbonate resin is laminated in free-film form to the exposed surface of the metalized film under heat and pressure to bond the outer layer to the metal film. The surface of the polyurethane baseweb is sufficient to produce adhesion of the metal layer to the baseweb in the absence of an intervening bonding layer or surface treatment, while smoothing out the metal layer to a mirror-like finish under lamination to produce a reflective laminate having a distinctness-of-image (DOI) greater than 95. The laminate can be thermoformed to a three-dimensional shape while retaining its high DOI level.

A novel block copolymer composition including a hydrogenated block copolymer that has at least one block A and at least one block B, and wherein (a) prior to hydrogenation each A block is a mono alkenyl arene homopolymer block and each B block is a controlled distribution copolymer block of at least one conjugated diene and at least one mono alkenyl arene, (b) subsequent to hydrogenation about 0-10% of the arene double bonds have been reduced, and at least about 90% of the conjugated diene double bonds have been reduced, (c) each A block having a number average molecular weight between about 3,000 and about 60,000 and each B block having a number average molecular weight between about 30,000 and about 300,000, (d) each B block comprises terminal regions adjacent to the A blocks that are rich in conjugated diene units and one or more regions not adjacent to the A blocks that are rich in mono alkenyl arene units, (e) the total amount of mono alkenyl arene in the hydrogenated block copolymer is about 5 percent weight to about 50 percent weight, and (f) the weight percent of mono alkenyl arene in each B block is between about 10 percent and about 75 percent. The thermoplastic polyurethane elastomer is present in the block copolymer in an amount from about 50 to about 95 percent by weight of a thermoplastic polyurethane elastomer.

Fluorine-free photoacid generators and photoresist compositions containing fluorine-free photoacid generators are enabled as alternatives to PFOS / PFAS photoacid generator-containing photoresists. The photoacid generators are characterized by the presence of a fluorine-free heteroaromatic sulfonate anionic component. The photoacid generators preferably contain an onium cationic component, more preferably a sulfonium cationic component. The photoresist compositions preferably contain an acid sensitive imaging polymer. The compositions are especially useful for forming material patterns using 193 nm (ArF) imaging radiation.

The invention provides a composite flexible surface enhanced Raman substrate based on silver nanoparticles and a preparation method of the substrate. According to the method, first, a chemical reduction method is utilized to prepare a silver colloid containing a large quantity of silver nanoparticles (AgNPs); second, the silver colloid is mixed with polydimethylsiloxane (PDMS) diluted with methylbenzene to form a suspension, the suspension is dropwise added onto the surface of a hard baseboard, and a PDMS thin film containing a large quantity of silver nanoparticles is formed through heat curing and is peeled off; and last, an impregnation method is used to transfer a layer of silver nanoparticles on the prepared thin film, and the composite flexible surface enhanced Raman substrate basedon silver nanoparticles is prepared. An experiment indicates that by use of the surface enhanced Raman scattering substrate prepared through the method, high-sensitivity SERS detection can be realized, and Raman signals are uniform; and meanwhile, the substrate has good mechanical stability and flexibility, and SERS signals are not attenuated but even substantially enhanced under large-range tensile strain. The method is convenient and fast to use and low in cost, and large-area repetitive preparation can be realized.

The present invention relates to a thermosetting silicone resin composition including a condensation reactable substituent group-containing silicon compound and an addition reactable substituent group-containing silicon compound; a silicone resin; a silicone resin sheet obtained from the thermosetting silicone resin composition or the silicone resin, and a use thereof.

A film of biodegradable polylactic acid polymers (PLA) and copolymers are produced by biaxially orienting single and multilayer extrusions. The film and sheets are stiff, have excellent optical properties and show excellent retained folding and creasing properties making them especially desirable for the production of folded box like containers. The surface layer(s) of the film and sheet may be heat sealable or modified with a particle to give improved coefficient of friction (COF), blocking resistance, reduced static generation, improved winding and improved package formation on packaging machines.

The present invention relates to fluorine-containing asymmetric aromatic diamine, a preparation method and an application thereof in the synthesis of polyimide. The compound has a constitutional formula as shown in the right. The preparation method comprises the following steps: (1) 2, 6-dimethyl phenol, paranitrobensoyl chloride and alchlor have catalytic reaction in an organic solvent to prepare (4'-hydroxy-3', 5'-dimethyl benzene)-(4-nitrophenyl) ketone; (2) the (4'-hydroxy-3', 5'-dimethyl benzene)-(4-nitrophenyl) ketone reacts with 2-chlorine-5-nitro trifluorotoluene with alkaline, to prepare (3', 5'-dimethyl-4'-(4''-nitro-2''-trifluoromethyl phenoxy) benzene)-(4-nitrophenyl) ketone; (3) the prepared product in the second step is reduced by reducing agent with organic solvents and catalysts; thus the fluorine-containing asymmetric aromatic diamine can be prepared. The fluorine-containing asymmetric aromatic diamine can be used for preparing fluorine-containing polyimide. The fluorine-containing asymmetric aromatic diamine prepared in the method has high purity and can keep stable at the room temperature; the polyimide made of the fluorine-containing asymmetric aromatic diamine has excellent solubility, film forming capability, optical transparency, mechanical properties and heat resistance.

The invention discloses a method for wrapping gold-silver alloy nanometer particles through silicon dioxide. According to the method, isopropyl alcohol serves as a solvent, tetraethyl orthosilicate serves as a silicon source, a stirring reaction is conducted for 1-3 hours at the temperature of 40-60 DEG C by adjusting the proportion of the tetraethyl orthosilicate and the gold-silver alloy nanometer particles, and then the Au-Ag alloy@SiO2 composite nanometer particles wrapped by SiO2 of different thicknesses can be obtained. The method is simple, the reaction condition is gentle, the reaction time is short, no surface active agents need to be added, the prepared Au-Ag alloy@SiO2 composite nanometer particles are high in dispersity and regular in morphology, the thicknesses of silicon dioxide shell layers are uniform and controllable, quite high plasmon resonance peaks are achieved, and adjustable plasmon resonance peaks can be obtained by changing the thicknesses of the silicon dioxide shell layers.

Aiming at improving the performance of touch control LCD (Liquid Crystal Display) panels, the invention discloses a color film substrate and a manufacturing method thereof and a touch control LCD panel. The color film substrate comprises a substrate; a driving electrode is arranged on the lower surface of the substrate; an induction electrode is arranged on the upper surface of the substrate; and the driving electrode and the induction electrode take the substrate as a dielectric layer to form a touch control inductive capacitor. The color film substrate and the manufacturing method can be used in the technical field of touch control of liquid crystal display.

High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.

Micro-structures and directional and multi-directional coatings for uniformly colored and directionally colored photovoltaic modules and roof tiles are described. The photovoltaic roof tiles include a glass cover with texture of a micro scale on a first side, and one or more layers of a transparent material adjoining the first side of the textured glass configured to reflect light of a color. A glass cover can have texture on a first side and a layer of sphere shaped metal nanoparticles adjoining the first side of the textured glass cover. Directionally colored solar modules can include a textured glass cover with texture on a first side and a coating layer covering one or more facets of the texture on the first side of the glass cover. The coating layer may be deposited by coating the textured glass cover in one or more directions.

The invention relates to the technical field of windows, and provides a manufacturing method for manufacturing an intelligent window. The method includes the steps that dyeing, stretching and color complementing are conducted on a first polyvinyl alcohol film, and the upper surface and the lower surface of the first polyvinyl alcohol film are covered by first triacetyl cellulose membranes to be dried; dyeing, stretching and color complementing are conducted on a second polyvinyl alcohol film, the upper surface and the lower surface of the polyvinyl alcohol film are covered by a third triacetyl cellulose membrane and a second triacetyl cellulose membrane to be dried, the second triacetyl cellulose membrane is coated with a pressure-sensitive adhesive layer, and then thermocuring and spontaneous curing are conducted; first glass, a first polaroid, a liquid crystal coating, a second polaroid and second glass are sequentially stacked. The invention further provides the intelligent window. The intelligent window comprises the first glass, the first polaroid, the liquid crystal coating, the second polaroid and the second glass. The first polaroid comprises the first polyvinyl alcohol film and the first triacetyl cellulose membrane. The second polaroid comprises the pressure-sensitive adhesive layer, the second triacetyl cellulose membrane, the second polyvinyl alcohol film and the third triacetyl cellulose membrane.

The invention discloses a preparation method of silicon dioxide aerogel, and belongs to the technical field of a nano-porous material. The preparation method includes steps of performing hydrolytic polymerization on methyl trimethoxy silane to obtain a wet gel; staying the wet gel under a certain temperature and acquiring a contracted wet gel; sealing and aging the contracted wet gel through solvent; drying the aged wet gel and acquiring the aerogel. Through applying the methyl trimethoxy silane and the surface active agent to prepare the wet gel, the wet gel can bear heavy contraction and deformation; through staying, fluid in the wet gel hole is volatilized, and the wet gel is contracted; under the condition of low addition of the methyl trimethoxy silane, the aerogel with high density can be acquired; meanwhile, the aerogel grain has small dimension, the hole structure is more uniform, and the contact area between grains is bigger; thus the optical transparency and the mechanical performance of the aerogel are promoted.

The present invention relates to a process for forming metal-containing films by applying a photosensitive metal-containing composition on a substrate, drying the photosensitive metal-containing composition, exposing the photosensitive metal-containing composition to a source of actinic radiation and applying a post-treatment to the metal-containing composition. The process also includes exposing the photosensitive metal-containing composition to a source of actinic radiation through a mask or mold and developing the unexposed portion of the composition. Another embodiment of the invention is a metal-containing film, three-dimensional object or article formed by the process. The invention is useful in producing a directly patterned metal-containing film and a microdevice.

The invention relates to oil solubility carbon quantum dots (OCDs), PMMA-coated OOCDs, and a preparation method and an application thereof. The particle size of the oil solubility carbon quantum dots is 1-10 nm, and the surface non-saturated carbon bond contains 20-50%. The oil solubility carbon quantum dots synthesized by the method has good dispersibility and luminescence performance, can be taken as an age-proof probe of PMMA, a composite material obtained by in-situ polymerization of the oil solubility carbon quantum dots and the PMMA has excellent optical transparency (the transmittance can reach as high as more than 85%), the anti-ultraviolet aging performance of the PMMA can be increased by more than 10 times, the method solves the problems that the application of carbon quantum dots is existed in all-solid-state illumination in the prior art, and solves the problem that the PMMA cannot be widely used due to poor aging performance.

The invention relates to transparent biodegradable polylactic acid nano composite material and a preparation method thereof. The nano composite material comprises the following components: polylactic acid, nano silicon dioxide, a plasticizer, an antioxidant and a lubricant. The preparation method comprises the following steps: premixing; milling or extruding granulation; and hot-press forming. The nano composite material is fully biodegradable; compared with pure polylactic acid, the nano composite material has obviously improved thermal stability; and the initial thermal decomposition temperature is maximally improved by 34.79 DEG C, and the highest thermal decomposition temperature is maximally improved by 31.35 DEG C. The nano composite material has good penetrability; and the visible light transmission rate of the material is between 85 and 89, and the haze value of the material is from 3.8 to 4.7. The nano composite material also has an excellent processability; the material has the following adjustable mechanical properties: a tensile strength between 32.6 and 70.4MPa, the stretch modulus between 0.80 and 2.36GPa, and breaking elongation rate between 6.2 and 280. The nano composite material is widely applied in the fields of agricultural use products, food package, daily articles, and the like.

The invention relates to a microfluidic-control preparation method for a microsphere of a polymethylmethacrylate-coated cadmium telluride (CdTe) quantum dot, and relates to a preparation method for the microsphere of a polymethylmethacrylate-coated CdTe quantum dot. The microfluidic-control preparation method for the microsphere of the polymethylmethacrylate-coated (CdTe) quantum dot aims to solve the problems that the surface of the quantum dot needs to be modified and the quantum dot is easy to dissolve by the microsphere of the polymethylmethacrylate-coated CdTe quantum dot by adopting a traditional preparation method for the microsphere of the polymethylmethacrylate-coated CdTe quantum dot. The method comprises the following steps: preparing a sodium hydrogen telluride solution; preparing a CdTe quantum dot; preparing a polymer solution; connecting a microfluidic-control system; respectively putting the polymer solution and silicone oil into injectors A and B of the microfluidic-control system; setting the propulsion speed of the injectors A and B; after starting, formed liquid beads flow into a rotary evaporator; and curing and evaporating the silicone oil to obtain the microsphere of the polymethylmethacrylate-coated CdTe quantum dot. In the microfluidic-control preparation method for the polymethylmethacrylate-coated CdTe quantum dot, the polymethylmethacrylate-coated CdTe quantum dot is selected, therefore, fluorescence is stable, and the microsphere can be adjusted in size and can be used for field of fluorescent display and the like.

The present invention is one kind of room temperature cured sealing silicone mixture, which contains hydroxyl capped polydimethyl siloxane, crosslinking agent, silica, etc as well as characterized refractive index regulator. The present invention also relates to the preparation process of the sealing mixture. During its preparation, agglomerate silica grains are crushed via high speed stirring for dispersing in base material. Owing to the refractive index regulator, the mixture has high tensile strength and optical transparency. In addition, the mixture has low cost and simple and easy-to-control preparation process.

The invention discloses a modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and a preparation method thereof, relating to an organic silicon release film and a preparation method thereof. By using modified no-rainbow organic silicon release film, the problems of low organic silicon release film surface tension and poor organic solvent resistant performance can be solved. The release film is prepared from a base material and coating liquid, wherein the coating liquid is prepared from acrylic acid, butyl acrylate, methyl methacrylate, styrene, vinyl dimethyl siloxane prepolymer, epoxy resin E-44, benzoyl peroxide and toluene. The method comprises the following steps: adding parts of acrylic acid, butyl acrylate, methyl methacrylate, styrene and toluene and whole vinyl dimethyl siloxane prepolymer into a reactor; carrying out a reaction in two steps to obtain emulsion; preparing into coating liquid; coating onto the biaxially oriented poly benzoic acid gylcol ester film; and drying to obtain the modified no-rainbow organic silicon release film. The surface tension of the release film is 29-31mN / m, stripping resistance is 19-24g / cm, and the modified no-rainbow organic silicon release film can be used for the field of optical products.

The invention belongs to the transparent conductive film technical field, in particular to a preparation method of a polycrystalline molybdenum doped zinc oxide transparent conductive film. The steps of the method are that: a zinc inlay molybdenum target is taken as a target and ordinary glass is taken as substrate, the substrate temperature is 100-300 DEG C, through a reactive dc magnetron sputtering method, an Ar ion beam bombards and sputters the target, the sputtering current is 150-300mA, the sputtering voltage is 100-400 V, the work pressure of a reaction chamber is 0.45-2.5 Pa, the percentage of the parcial pressure P (O 2 ) = Po 2 / (Po 2 +P Ar ) of the reactive gas O 2 is 4.0 to 10.0%, the sputtering time is 40-100 minutes, thus forming the molybdenum-doped zinc oxide transparent conductive film with a polycrystalline structure. The film thickness is 100-250 nm. The film prepared by the invention is characterized by low resistivity, high visible light range of optical transparency and high carrier mobility. The invention has industrial production prospect and has good technological stability. The invention is a novel method in the preparation of ZMO transparent conductive oxide films and the guarantee of excellent quality of parts produced by films.

In a thermoforming system for masked polymer substrate sheets, a temperature resistant, non-stick coating is applied to a sheet of a polymer substrate material. The coated sheet is positioned on a flexible platen positioned over a mold having a predetermined shape. Heat is applied until the polymer reaches a thermoforming temperature and softens, whereupon the platen is lowered to stretch over and cover the mold. When the sheet begins to conform to the mold, the heat is withdrawn and a second platen is lowered over the sheet to urge it into conformance with the mold. The temperature resistant coating can be applied over an existing polymer film masking, and rapidly cures to form a non-stick surface which prevents adhesion of the masked polymer sheet to the platen surfaces.