Abstract: A high-purity n-tetrasilane purification method includes: introducing a tetrasilane (Si4H10) isomeric mixture into a solidifying purification tank, cooling the tetrasilane (Si4H10) to a predetermined temperature with refrigerant in the solidifying purification tank, maintaining the predetermined temperature between the freezing temperature of the n-tetrasilane (n-Si4H10) and of the i-tetrasilane (i-Si4H10), solidifying the n-tetrasilane (n-Si4H10) in the tetrasilane (Si4H10) isomeric mixture into solid state, and vacuuming the i-tetrasilane (i-Si4H10) from the mixture for separation.

Abstract: A high-purity n-tetrasilane purification method includes: introducing a tetrasilane (Si4H10) isomeric mixture into a solidifying purification tank, cooling the tetrasilane (Si4H10) to a predetermined temperature with refrigerant in the solidifying purification tank, maintaining the predetermined temperature between the freezing temperature of the n-tetrasilane (n-Si4H10) and of the i-tetrasilane (i-Si4H10), solidifying the n-tetrasilane (n-Si4H10) in the tetrasilane (Si4H10) isomeric mixture into solid state, and vacuuming the i-tetrasilane (i-Si4H10) from the mixture for separation.

Abstract: The high-efficiency synthesis and purification recycling system of higher silane has a liquid nitrogen cooling system. The liquid nitrogen cooling system has a liquid nitrogen storage tank for being configured to distribute ?196° C. liquid nitrogen via a first cooling tube to the hydrogen column and the mono-silane column for a first cooling process; a second cooling tube is configured to distribute ?160° C. nitrogen after the first cooling process into the first distillation column, the second distillation column, the third distillation column and the recycling drum for a second cooling process, a third cooling tube is configured to distribute ?30° C. nitrogen after the second cooling process into the disilane drum for a third cooling process, and a fourth cooling tube is configured to distribute 25° C. nitrogen after the third cooling process into the silicon particle disposal system for a blowback regeneration process and to generate an anaerobic environment.

Abstract: A heat-insulating transparent PVC sheet useful to replace the glass or affixed to the glass is made by a non-coating process for cutting-off infrared and ultra-violet, which production method is an improved traditional process for producing the PVC sheets, and in the production a specific formula of PVC blends containing PVC resin, plasticizer, inorganic heat-insulating particles and other additives is directly used to produce the PVC sheet to keep the properties of PVC and to provide transparency, low haze and an excellent effect for cutting-off infrared and ultra-violet.

Abstract: A hexahydrophthalate based compound is adapted to use as a plasticizer that contains no phthalic acid and benzoic acid, possess physical properties superior to DEHA and DINA in transparency and adhesion and is friendly to organisms and the environment; and a process for producing the hexahydrophthalate based compound includes esterifying hexahydrophthalic anhydride, a diol, and a catalyst for decarboxylation to get hexahydrophthalic alcohol, and adding a monoacid into the hexahydrophthalic alcohol for further esterification, thereby obtaining the hexahydrophthalate based compound.

Abstract: A heat-insulating transparent PVC sheet useful to replace the glass or affixed to the glass is made by a non-coating process for cutting-off infrared and ultra-violet, which production method is an improved traditional process for producing the PVC sheets, and in the production a specific formula of PVC blends containing PVC resin, plasticizer, inorganic heat-insulating particles and other additives is directly used to produce the PVC sheet to keep the properties of PVC and to provide transparency, low haze and an excellent effect for cutting-off infrared and ultra-violet.

Abstract: A resin composition includes brominated epoxy resin of 20-70 wt %, a hardener of 1-10 wt %, a promoter of 0.1-10 wt %, inorganic powder of 0-20 wt %, high thermal conductivity powder of 5-85 wt % and a processing aid of 0-10 wt %. The resin composition possesses high glass transition temperature, high thermal conductivity, and excellent heat resistance as well as flame retardancy. The resin composition, which acts as a dielectric layer of a printed circuit board so as to endow the PCB with high thermal conductivity, is a high thermal conductivity prepreg formed by retting or a high thermal conductivity coating formed by coating. As a result, prompt dissipation of heat generated by electronic components on the PCB is achievable so that service life and stability of the electronic components are improved.

Abstract: A hexahydrophthalate based compound is adapted to use as a plasticizer that contains no phthalic acid and benzoic acid, possess physical properties superior to DEHA and DINA in transparency and adhesion and is friendly to organisms and the environment; and a process for producing the hexahydrophthalate based compound includes esterifying hexahydrophthalic anhydride, a diol, and a catalyst for decarboxylation to get hexahydrophthalic alcohol, and adding a monoacid into the hexahydrophthalic alcohol for further esterification, thereby obtaining the hexahydrophthalate based compound.

Abstract: A water based coating composition containing 2-40 wt % resin, 0.05-30 wt % mixed solution including grafting filler/Si compound/surfactant/polymer and 0.05-10 wt % additives can be used for the production of an optical-use polyester film. The described resin contains about: a. 20-50 wt %, based on the weight of the coated layer, of composition A which is polyester resin; b. 10-40 wt %, based on the weight of the coated layer, of composition B which is alkylated melamine formaldehyde crosslinking resin; c. 20-80 wt %, based on the weight of the coated layer, of composition C which is acrylic resin. The coated polyester film has some superior properties such as high transparency, low haze value, good adhesion and anti-blocking property. It is suitable for optical applications such as a base film of the brightness enhance film or a base film for the light diffusing plate in a LCD.

Abstract: A water based coating composition containing 2-40 wt% resin, 0.015-30 wt% mixed solution including a filler modified by Si coinpound/surfactant/polymer and 0.05-10 wt% additives can be used for the production of an optical-usc polyester film. The described resin contains about: a. 20-50 wt, based on the weight of the coated layer, of composition A which is polyester resin; b. 10-40 wt%, based on the weight of the coated layer, of composition B which is alkylated melamine formaldehyde crosslinking resin; c. 20-80 wt%, based on the weight of the coated layer, of composition C which is acrylic resin. The coated polyester film has some superior properties such as high transparency, low haze value, good adhesion and anti-blocking property. It is suitable for optical applications such as a base film of the brightness enhance film or a base film for the light diffusing plate in a LCD.

Abstract: A method for preparing a kind of plasticizer containing cyclohexane poly carboxylic acid ester, particularly without phthalate, and with the advantage of effective shortening of reaction time, which method comprising having cyclohexane polycarboxylic acid or its derivatives, mono-alcohol and metal catalyst of tin and titanium or inorganic acid added together at the same time into a reactor to undergo a single stage of esterification at high temperature of 200˜250° C., and a reaction mixture of cyclohexane polycarboxylic acid ester was obtained by the process which is applicably used as a plasticizer without phthalate and no hazard to the living beings and environment.

Abstract: The present invention provides a film for the protection of the surface of polarizer film. Said film surface has anti-static coated layer. The coating solution contains polythiophene, surfactant, binding resin and water. According to the present invention, said protection film on the surface on the polarizer film has the excellent anti-static, transmittance, anti-foul and water repellence. It is able to prevent the invasion of imbuing with dust, accumulative anti-static and water vapor from the processing of assembling and transportation so as to influence the quality of polarizer film.

Abstract: A LED device with high heat dissipation capability has heat dissipating package formed by transparent epoxy and heat dissipating packing epoxy which is a mixture of heat dissipating particles and packing epoxy; during packing process the upper light emitting portion of the LED device is firstly packed with transparent packing epoxy which will not influence the illumination function of the LED device, and then the lower heat dissipating portion of the LED device is packed with heat dissipating packing epoxy through which the heat generated by the LED device may be dissipated to the ambient air when the LED device is lit by high electric current, so that the LED device of this invention may greatly improve the heat accumulation problem and increase light emission efficiency when it is lit; and, since the manufacturing method disclosed in the invention is suitable for the production of the frame type LED device, the process and equipment for producing the conventional frame type LED device could be directly empl

Abstract: A method for producing white light emission by means of secondary light excitation comprising the application of a light source such as Light Emitting diode (LED) or Laser Diode (LD) which may generate ultra violet light or violet light, with wavelength between 360˜420 nm, to excite blue phosphor to produce the broadband first exciting light spectrum having blue light as the main wave crest; the first exciting light in turn excites the yellow phosphor having lower energy level to produce the broadband secondary exciting light having yellow light as the main wave crest; the amount of the two phosphors are adjusted to some specific ratio so that the first exciting light spectrum and the secondary exciting light spectrum emitted by the phosphors enable the light-blend and complementary effect to produce a complete white light spectrum; Besides, red phosphor or green phosphor which may be excited by ultra violet or violet light may be added to adjust the color rendering effect and color temperature of the white l