188results about How to "Low water vapor transmission rate" patented technology

A solar cell module of the present invention was made to improve adhesion between electrodes, which is formed with thermosetting resin containing silver paste, of a solar cell element and connecting tabs coated with lead (Pb) free solder. To achieve this purpose, the solar cell module is comprised of a front surface member, a rear surface protective member, a plurality of solar cell elements provided between the front surface member and the rear surface protective member, and connecting tabs for electrically connecting the solar cell elements to each other through electrodes with the use of lead free solder. The electrodes of the solar cell elements are made of silver paste containing thermosetting resin and silver powder. The thermosetting resin contains epoxy resin at volume ratio of 70% or more having a glass transition rate of 80° C. to 200° C. measured by a TMA method. The connecting tabs coated with lead free solder are soldered to the electrodes.

A chemically toughened ultrathin glass is provided. The glass has a thickness less than 500 μm and a surface compressive layer having a depth of at most 30 μm. The toughened ultrathin glass sheet is more flexible and has extraordinary thermal shock resistance with the glass being easier to handle for processing.

An organic light emitting diode (OLED) display includes a flexible substrate, a barrier layer disposed on the flexible substrate, and an organic light emitting diode disposed on the barrier layer. The barrier layer includes a plurality of metal layers and a plurality of insulation layers in which the metal layers and the insulation layers are alternatively stacked with each other on the flexible substrate.

The invention relates to a mulch film, in particular to a polyester full-biodegradable mulch film. The polyester full-biodegradable mulch film is prepared from the following raw materials in percentage by mass: 40%-80% of flexible degradable polyester, 10%-55% of rigid degradable polyester, 0.5%-1.5% of a reactive compatibilizing agent, 1%-2% of a heat preservation agent, 1%-2% of a moisturizing agent, 0.5%-1.5% of an ageing-resistant agent, 0.5%-1% of a smooth agent and 0.5%-3% of an anti-block agent. The polyester full-biodegradable mulch film does not contain any non-biodegradable general plastic and starch; the film blowing operation can be performed on a general LDPE (low-density polyethylene) film blowing machine; equipment does not need to be modified; the polyester full-biodegradable mulch film is good in transparency, flexibility and heat preservation property, high in strength, low in water vapor penetration rate and favorable for preserving moisture.

The invention discloses a solar battery back plate adopting an ultraviolet (UV) curing weather-proof coating and a manufacture method of the solar battery back plate. The solar battery back plate comprises a substrate, wherein at least one side of the substrate is coated with the UV curing weather-proof coating, the UV curing weather-proof coating is prepared from the following materials: 50 to 80 weight percent of weather-proof photosensitive resin, 10 to 20 weight percent of reactive diluent, 2 to 15 weight percent of initiating agent, 5 to 30 weight percent of filling material, 0.5 to 2 weight percent of dispersing agent, 0.5 to 2 weight percent of antioxidant, 0.5 to 2 weight percent of hydrolysis-resistant agent and 0.5 to 2 weight percent of anti-aging agent. The UV curing weather-proof coating is adopted and directly coated onto the substrate, the coating curing efficiency is high, the production efficiency of the solar battery back plate is improved, and meanwhile, the use of organic solvents causing serious pollution to the environment is avoided, so the organic solvent volatilization is avoided in the whole production process, and the solar battery back plate conforms to the green and environmental friendly standard.

Multi-layer films particularly suited for packaging applications, including a core layer, the core layer having at least one nucleating agent and at least one water vapor transmission inhibitor are provided. Optionally, the multi-layer film may have at least one skin layer and at least one tie layer located intermediate the core layer and the at least one skin layer. Embodiments may have the advantage of superior barrier properties and very low water vapor transmission rates.

A golf ball including a core formed from a polymer blend comprising a microgel having a Tg of −100° C. to 20° C. formed from a monomer, a co-monomer, and an initiator; and a thermoset rubber material; an outer cover layer; and an inner cover layer disposed between the core and outer cover layer.

Coated substrates comprising an inorganic barrier coating and an interfacial coating, wherein the interfacial coating comprises a cured product of a silicone resin having silicon-bonded radiation-sensitive groups; and methods of preparing the coated substrates.

The invention discloses a butyl hot melt adhesive and a preparation method thereof. The preparation method comprises the following steps that in a high temperature kneader, the temperature is set at 130 DEG C-150 DEG C, 180-600 parts by weight of polyisobutene, 100 parts by weight of butyl rubber and 30-120 parts by weight of tackifying resin are firstly added into the kneader, the temperature is increased to 110 DEG C-130 DEG C, and stirring is performed until the materials are uniform; 450-1000 parts by weight of packing, 0-7 parts by weight of an anti-aging agent and 1-25 parts by weight of a softening agent are sequentially added, vacuumizing and stirring are performed for 0.5-2.5 hours, 20-100 parts by weight of the retained polyisobutene is added, vacuumizing and continuous stirring are performed for 0.5-2 hours, and the butyl hot melt adhesive is prepared. The butyl hot melt adhesive prepared through the method is excellent in anti-ultraviolet property and easy to construct, has the excellent adhesive property on hollow glass materials and aluminum alloy strips and can not only meet usage of hollow glass, but also be applied to the fields such as photovoltaic backboard adhesion.

The invention relates to a butyl hot melt adhesive tape and a preparation method thereof. The preparation method comprises the following steps: 1) adding polyisobutylene into a vacuum kneader, rising the temperature, and conducting a first stirring; then adding a plasticizer, an antioxidant, a modified phenolic resin, a carbon 5 resin, a homogenizing tackifier and a polyethylene wax, and conducting a second stirring to obtain a mixture A; 2) sequentially adding EVA and a butyl rubber into the mixture A obtained in the step 1), and conducting a third stirring to obtain a mixture B; 3) adding carbon black into the mixture B obtained in the step 2), and conducting a fourth mixing to obtain an adhesive material; and 4) heating the adhesive material obtained in the step 3), and then pressing and cutting to obtain the butyl hot melt adhesive tape.

The invention belongs to the technical field of solar cells and particularly relates to a high-radiation solar cell backboard. The high-radiation solar cell backboard is characterized by comprising an anti-scraping wear-resistant coating, a first adhesive layer, an aluminum alloy layer, a second adhesive layer, an insulation isolation layer, a third adhesive layer and an ethylene-vinyl acetate bonding layer which are connected in sequence. The high-radiation solar cell backboard has the advantages that aluminum alloy is good heat conductor, and heat generated in a cell component can be dissipated timely so as to guarantee the service life of a solar cell; the compact structure of the aluminum coil is good in moisture blocking performance, so that the moisture transmittance of the backboard is 0.001g / m<2>*d; the production cost of the backboard is lowered, the backboard moisture transmittance is reduced, the radiation performance of the cell component is increased, and the service life of the cell component is prolonged.

The present invention provides a micropackaged device comprising: a substrate for securing a device; a corrosion barrier affixed to said substrate; optionally at least one feedthrough disposed in said substrate to permit at least one input and or at least one output line into said micropackaged device; and an encapsulation material layer configured to encapsulate the micropackaged device.

Semi-conductive or insulating compositions including an ethylene / octane or butene copolymer and at least one additional polymer, such LDPE, are described. The compositions may also include carbon black and other additives. The composition may be used as a semi-conductive layer in such applications as electrical cables

The sealing silicone glue with low moisture permeability for hollow glass contains two components, component A and component B. The component A is prepared with poly(alpha, omega-dihydroxy siloxane 100 weight portions, petroleum resin 5-20 weight portions, active calcium carbonate 80-120 weight portions, quartz powder 20-50 weight portions and hollow glass bead 10-30 weight portions, and through mixing in a kneading machine or high speed planetary stirrer. The component B is prepared with silicate ester 40-60 weight portions, catalyst 0.5-1 weight portions, silane coupler 5-20 weight portions and silicon oil 20-40 weight portions, and through mixing inside a planetary stirrer at vacuum degree 0.06-0.099 MPa and rotation speed 20-600 rpm. When the glue is used, component A and component B are mixed I the ratio of 11-13 at room temperature.

Disclosed is a polyimide cover substrate, which is configured such that a device protection layer is formed of a urethane acrylate compound on at least one side of a polyimide film, thereby exhibiting not only high flexural properties and impact resistance but also superior solvent resistance, optical properties and scratch resistance and low water vapor transmission rate, and thus can be effectively utilized as a cover substrate for a flexible electronic device.

The multi-layer tape wrapped tubing for effectively impeding the diffusion of vapor is made in a continuous in-line process and has three distinct layers: an inner tubing layer, a middle diffusion barrier layer and an outer jacketing layer. The inner tubing layer comes into contact with liquid and vapor. Vapor that might ordinarily diffuse through the tubing is impeded by the diffusion barrier layer. The diffusion barrier layer is a laminate comprising a diffusion barrier film with a very low vapor diffusion rate sandwiched between layers of thermoplastic. The diffusion barrier layer is wrapped around the inner tubing one or more times. The outer jacket layer is a polymeric jacket which is extruded onto the diffusion barrier layer wrapped inner tubing.

The invention discloses a water-blocking repairing adhesive tape used for a photovoltaic module backboard and a preparation method of the adhesive tape. The water-blocking repairing adhesive tape includes an air surface base film layer, a middle water-blocking adhesion layer and a release film layer, wherein the air surface base film layer is composed of a polyester film or a polyester film and afluorocarbon coating formed on the outer surface of the polyester film or a polyester film and a fluorocarbon coating formed on two surfaces of the polyester film, and the air surface base film layerhas the protective effects such as insulation and weather resistance; and the middle water-blocking adhesion layer is a water-blocking adhesion layer obtained by extrusion through a two-screw extruderafter mixing by using an olefin polymer as a base material, and the middle water-blocking adhesion layer has good adhesion performance and excellent water-blocking performance, wherein the water vapor transmission rate is less than 1g*m<-2>*day<-1>. The invention also discloses a preparation method of the water-blocking repairing adhesive tape. The prepared adhesive tape has excellent insulation,water resistance, weather resistance and adhesion, and is convenient for construction.

A seal member having a thermoplastic body for an electrochemical cell containing a nonaqueous organic solvent electrolyte. In particular, the seal member is preferably one or more of (a) a seal located between a cell container wall and a cell cover and (b) a seal of a vent assembly, more particularly a ball vent assembly. The seal member has a composite construction including one or more vapor transmission barrier layers disposed on a portion of the thermoplastic body.

A chemically toughened ultrathin glass is provided. The glass has a thickness less than 500 μm and a surface compressive layer having a depth of at most 30 μm. The toughened ultrathin glass sheet is more flexible and has extraordinary thermal shock resistance with the glass being easier to handle for processing.

Semi-conductive or insulating compositions including an ethylene / octane or butene copolymer and at least one additional polymer, such LDPE, are described. The compositions may also include carbon black and other additives. The composition may be used as a semi-conductive layer in such applications as electrical cables.

The invention discloses a solar-powered back plate. The solar-powered back plate comprises an inner surface layer, a core layer and an outer surface layer in the mass ratio of (10-20):(20-40):(40-60) from inside to outside, wherein the inner surface layer is made from vinyl resin, a filler and an additive; the outer surface layer is made from polyamide resin, a filler and an additive; and the core layer is made from a modified polyethylene resin composition. The invention further develops a novel polyethylene resin composition, which comprises 100 parts of crosslinked polyethylene resin, 0-50 parts of grafted polyethylene, 0.1-0.5 parts of catalyst, 0-100 parts of filler and 0-2.5 parts of additive. The novel solar-powered back plate developed by the invention is prepared through a coextrusion process; and a prepared final product has the advantages of superior adhesion, high interlaminar peeling strength, aging resistance, particular damp-heat aging resistance, low saturated water absorptivity, low water vapor transmittance and superior electric insulating property, simple preparation process, low cost and suitability for industrial production.

The invention discloses a high-barrier biodegradable free-standing bag and a preparation method thereof. The free-standing bag is composed of two parts of a high-barrier biodegradable self-sealing strip and a five-layer composite high-barrier biodegradable bag body, the main substrate of the high-barrier biodegradable self-sealing strip is PLGA and PPC with excellent barrier property, the five-layer composite high-barrier biodegradable bag body is composed of single-light white kraft paper, a bonding layer, a first barrier layer, a second barrier layer and a heat seal layer, and is integrallyformed by adopting the four-layer co-extrusion and film-coating combined process. Compared with a traditional non-degradable free-standing bag, the prepared high-barrier biodegradable free-standing bag has the advantages that the physical mechanical property and the heat sealing performance are substantially equivalent, the barrier property is more excellent, biodegradation can be achieved, the problem of "white pollution" caused by waste of traditional free-standing bags is solved, and the application of the biodegradable plastic in the field of high-barrier food packaging is expanded, so that the high-barrier biodegradable free-standing bag has very important significance.

An organic light emitting diode (OLED) display includes a flexible substrate, a barrier layer disposed on the flexible substrate, and an organic light emitting diode disposed on the barrier layer. The barrier layer includes a plurality of metal layers and a plurality of insulation layers in which the metal layers and the insulation layers are alternatively stacked with each other on the flexible substrate.

A humidity regulating system and method is disclosed for use in the storage of humidity sensitive items and includes a storage container defining a volume for storing articles of interest and having a selected generally low water vapor transmission rate, a closure arrangement that generally effectively seals fabric items in the storage container thereby creating a storage environment, and one or more humidity regulating units in communication with the interior of the storage container and including humidity regulating material capable of regulating a desired, generally constant relative humidity in the storage environment that will not support mold growth in fabric or other articles of interest during a selected duration.

The invention relates to a mulch film, in particular to a polyester full-biodegradable mulch film. The polyester full-biodegradable mulch film is prepared from the following raw materials in percentage by mass: 40%-80% of flexible degradable polyester, 10%-55% of rigid degradable polyester, 0.5%-1.5% of a reactive compatibilizing agent, 1%-2% of a heat preservation agent, 1%-2% of a moisturizing agent, 0.5%-1.5% of an ageing-resistant agent, 0.5%-1% of a smooth agent and 0.5%-3% of an anti-block agent. The polyester full-biodegradable mulch film does not contain any non-biodegradable general plastic and starch; the film blowing operation can be performed on a general LDPE (low-density polyethylene) film blowing machine; equipment does not need to be modified; the polyester full-biodegradable mulch film is good in transparency, flexibility and heat preservation property, high in strength, low in water vapor penetration rate and favorable for preserving moisture.

The invention relates to the technical field of film packaging, and specifically discloses a compound, a composition for encapsulating a photoelectric device, a preparation method, an encapsulation film, an electronic device and an encapsulation method. The compound has a structure shown in the specification, the compound provided by the invention has relatively low water vapor transmission rate;when the compound is used for preparing the encapsulation film, moisture can be effectively isolated, the transmittance of oxygen and water is low, the service life of a device is prolonged through the encapsulation film, the service life is greatly prolonged on the basis that the flexibility of the device is guaranteed, and the problem that an existing packaging material for a photoelectric device is high in water vapor transmittance is solved. The preparation method of the provided compound is simple, and the provided encapsulation film makes various designs of an organic light-emitting display device possible.

The multi-layer tape wrapped tubing for effectively impeding the diffusion of vapor is made in a continuous in-line process and has three distinct layers: an inner tubing layer, a middle diffusion barrier layer and an outer jacketing layer. The inner tubing layer comes into contact with liquid and vapor. Vapor that might ordinarily diffuse through the tubing is impeded by the diffusion barrier layer. The diffusion barrier layer is a laminate comprising a diffusion barrier film with a very low vapor diffusion rate sandwiched between layers of thermoplastic. The diffusion barrier layer is wrapped around the inner tubing one or more times. The outer jacket layer is a polymeric jacket which is extruded onto the diffusion barrier layer wrapped inner tubing.

The invention discloses an EVA adhesive film with the high water vapor barrier property. The EVA adhesive film is prepared from, by weight, 100 parts of EVA resin, 0.1-5 parts of a cross-linking agent, 0.1-1 part of an antioxidant, 0.3-1 part of an ultraviolet screening agent, 0.3-0.7 part of a light stabilizer and 1-20 parts of lamella packing, wherein the lamella packing is one of sericite, talcum powder, glass flake and mica. The EVA adhesive film with the high water vapor barrier property has good ultraviolet resistance and good main mechanical properties such as tensile strength and tear strength, and can have the good compatibility with other photovoltaic packaging materials and lamination technologies.