7 results about "Polyvinyl butyral" patented technology

The invention discloses an infrared barrier PVB (polyvinyl butyral) intermediate film and a preparation method, and relates to the technical field of environmental functional glass materials, the intermediate film comprises 60-75 parts of polyvinyl butyral resin, 25-35 parts of a plasticizer, 0.5-3 parts of nano tin antimony oxide, 0.1-0.5 part of an ultraviolet absorbent, 0.05-0.2 part of an antioxidant and 0.1-0.5 part of a dispersant, the preparation method comprises the steps of nano infrared blocking agent pre-dispersion, mixing, twin-screw extrusion molding, tape casting cooling, surface treatment and the like, the surface-modified nano tin antimony oxide is introduced as the infrared blocking agent, infrared radiation at the wave band of 780-1300 nm is effectively blocked, the infrared blocking rate reaches 85% or above, the visible light transmittance is larger than 80%, the technology is mature and stable, the cost is low, and the preparation method is suitable for industrial production. The prepared intermediate film can be applied to building and automobile laminated glass, and the heat insulation and energy saving effects are achieved.

The utility model belongs to the technical field of antennas, specifically provides a glass antenna, and aims to solve the problem that glass of a conventional glass antenna is easy to damage. Therefore, the glass antenna comprises a first glass layer, a first PVB (polyvinyl butyral) dielectric layer, a main radiation structure, a second PVB dielectric layer, a second glass layer, a coupling feed structure and a PCB (printed circuit board) dielectric layer which are sequentially overlapped, and the coupling feed structure is at least opposite to part of the main radiation structure. The main radiation structure and the coupling feed structure can transmit energy signals in a coupling feed mode. The glass antenna transmits energy signals in a coupled feeding mode, avoids direct contact between a feeding connector for direct feeding and glass in the prior art, avoids touch damage of the connector to the glass, greatly protects the glass, facilitates antenna processing, and reduces antenna manufacturing cost.

The utility model relates to the technical field of laminated glass, in particular to low-light-transmittance laminated glass for an automobile, which comprises a shading automobile window mechanism, an outer glass layer and a light-transmitting glass layer. The middle layer is attached to one side of the outer-layer glass; the first inner layer glass is attached to one side of the middle layer; the second inner-layer glass is attached to one side of the first inner-layer glass; and the sunshade unit is arranged at the second inner layer glass and is fixed with the frame. According to the sound insulation and heat insulation film, the middle layer adopts the macromolecule sound insulation and heat insulation film formed by compounding the PVB and the nanometer aerogel, the butyl rubber microspheres are evenly distributed in the film, the nanometer aerogel and the PVB have certain heat insulation performance, heat transfer can be effectively blocked, the temperature in a vehicle can be effectively reduced, the butyl rubber microspheres can absorb and attenuate sound wave energy, and the sound insulation and heat insulation film is good in sound insulation and heat insulation performance. When external noise is transmitted to the glass, the microspheres elastically deform, sound energy is converted into heat energy to be consumed, the sound insulation performance of the glass is remarkably improved, and a quiet in-vehicle environment is created for drivers and passengers.

To provide a film laminate excellent in quality and appearance by minimizing the pressure applied to a liquid crystal layer inside a dimming laminate at the time of joining glass which may occur in a display and suppressing the occurrence of liquid crystal unevenness even after joining the glass.SOLUTION: Provided is a film laminate including a dimming laminate and a surface-protecting layer laminated on at least one of an upper surface and a lower surface of the dimming laminate, wherein the surface-protecting layer is a low-temperature curable polyvinyl butyral (PVB) film cured at a temperature of 90 °C or less, has a thickness of 0. 01mm to 0. 35mm, and has a total area larger than an area of the dimming laminate in contact with the surface-protecting layer.SELECTED DRAWING: Figure 2

The utility model discloses a PVB (Polyvinyl Butyral) intermediate film light transmittance detection device convenient to use. The PVB intermediate film light transmittance detection device comprises a detection box and a dust removal assembly, according to the PVB intermediate film light transmittance detection device convenient to use, the dust collection heads located at the upper end and the lower end of the pressing frame and the supporting frame in the detection box can conduct dust collection treatment on the upper end face and the lower end face of a PVB intermediate film clamped between the pressing frame and the supporting frame, so that the situation that dust remains at the upper end and the lower end of the PVB intermediate film, and consequently the detection precision of the PVB intermediate film is affected is avoided; a protective pad at the outer end of the dust collection head can block the opening of the detection head and the opening of the light source which are not used in the detection box during dust collection, so that the problem that dust is accumulated in the detection head and the light source to affect the detection precision is solved; and the PVB intermediate film clamped between the supporting frame and the pressing frame can be in different sizes, so that the application range of the detection box is widened.

This utility model relates to the field of laminated glass and discloses a colored laminated glass, comprising two glass bodies, two fixing plates, and two limiting plates. Limiting grooves are formed on the upper and lower sides near the middle of the two fixing plates, and placement grooves are formed at the upper and lower edges of the two fixing plates. A placement block is fixedly disposed at the middle position of one of the opposite sides of the two limiting plates, and limiting blocks are fixedly disposed at both ends of one of the opposite sides of the two limiting plates. A PVB film is disposed between the two glass bodies. Each glass body includes a hydrophobic film layer, with a glass layer disposed within the inner end of the hydrophobic film layer, and an explosion-proof film layer disposed within the inner end of the glass layer. The hydrophobic film layer is made of siloxane coating, and the explosion-proof film layer is made of polyvinyl butyral. In this utility model, the hydrophobic film layer on the surface of the glass body can effectively prevent moisture adhesion, and the explosion-proof film layer can enhance the impact resistance and explosion resistance of the glass.

The utility model discloses an anti-fogging nuclear power squint window, and relates to the technical field of squint windows, the anti-fogging nuclear power squint window comprises an outer mounting frame, the outer side of the outer mounting frame is fixedly connected with a first mounting rack, the first mounting rack is internally and fixedly provided with first lead glass, the inner part of the outer mounting frame is fixedly connected with a second mounting rack, and the second mounting rack is fixedly connected with a second lead glass. The beneficial effects of the utility model are that the first mounting rack, the second mounting rack, the third sealing gasket, the third mounting rack, the second sealing gasket, the fourth mounting rack, the first sealing gasket and the outer mounting frame are matched with each other, so that the sealing performance of the interior of the outer mounting frame can be ensured; then inert gas is injected into the outer mounting frame through an air inlet pipe and a second one-way valve, so that air in the outer mounting frame is discharged through an air guide pipe and a first one-way valve, and meanwhile, the surfaces of first lead glass, a concave mirror, a convex mirror and second lead glass are coated with polyvinyl butyral coatings to improve hydrophobicity; therefore, the fogging probability is reduced.