Light bulbs and dimmable glass

Abstract

In a light valve including a first transparent electrode provided on a first transparent substrate, a second transparent electrode provided on a second transparent substrate, and a light control layer provided between the first transparent electrode and the second transparent electrode, a first protective layer is provided between the first transparent electrode and the light control layer, a second protective layer is provided between the second transparent electrode and the light control layer, and the first protective layer and / or the second protective layer contains a solid-modified siloxane polymer in an amount of 45 to 100 parts by mass, an antioxidant in an amount of 0 to 3 parts by mass, an ultraviolet absorber in an amount of 0 to 3 parts by mass, an infrared absorber in an amount of 0 to 3 parts by mass, a light stabilizer in an amount of 0 to 3 parts by mass, a heat stabilizer in an amount of 0 to 3 parts by mass, and a liquid additive in an amount of 0 to 40 parts by mass, based on mass percentage. A light valve and a dimming glass are provided. According to the technical solution of the present invention, it is possible to significantly improve the thermal stability and light stability of the entire light valve while achieving stronger interlayer adhesion.

Description

[Technical Field]

[0001] The present invention belongs to the technical field of light bulbs, and relates to light bulbs and dimmable glass, and the application of modified siloxane oligomers to light bulbs, and more particularly to light bulbs and dimmable glass, and the application of modified siloxane oligomers to light bulbs. [Background technology]

[0002] Light bulbs are smart films, also collectively known as dimmable films, that are devices capable of adjusting the transmittance of light rays transmitted through them. Conventional dimmable films are made by directly bonding the film to glass and then applying voltage to make the film transparent or opaque. This achieves a balance between the transparency and privacy required for glass, which cannot be achieved with any ordinary curtain. In other words, it provides good lighting even when opaque, and also plays a role in insulating or reflecting the thermal energy of light, thus creating a cooler home in summer and a warmer home in winter, thus saving energy. This product utilizes the optical properties of liquid crystal elements to realize the photoelectric performance of the film, and is therefore widely used in countries such as Europe, the United States, and Japan. Modules made by sandwiching an interlayer film into a dimmable film are generally called dimmable glass.

[0003] To facilitate application to light bulbs, conventional technology often involved creating a multi-layer structure by adding resin protective layers above and below the light control layer. However, the protective layers in existing light bulbs have proven ineffective, leading to significant attenuation of the light bulb during thermal aging tests over time, as well as deterioration of weather resistance and durability. Therefore, there is still room for improvement.

[0004] Therefore, discovering suitable materials that can further enhance the weather resistance and long-term stability of light bulbs, thereby more effectively expanding the range and depth of their applications, is one of the problems that many R&D companies and leading researchers in this field must urgently solve. [Overview of the project] [Problems that the invention aims to solve]

[0005] In view of this, the technical problem that the present invention aims to solve is to provide an application of modified siloxane oligomers to light bulbs, a protective layer for light bulbs, a light bulb, and dimmable glass. By using the modified siloxane oligomer according to the present invention as a protective layer for light bulbs, it is possible to achieve better thermal stability, radiation resistance, and stronger interlayer adhesion of the light bulb. [Means for solving the problem]

[0006] The present invention relates to a light bulb comprising a first transparent electrode provided on a first transparent substrate, a second transparent electrode provided on a second transparent substrate, and a light control layer provided between the first transparent electrode and the second transparent electrode, A first protective layer is provided between the first transparent electrode and the light control layer, and / or A second protective layer is provided between the second transparent electrode and the light control layer. The present invention provides a light bulb in which the first protective layer and / or second protective layer contain a solid modified siloxane polymer, comprising, by mass percentage, 45 to 100 parts by mass of the solid modified siloxane polymer, 0 to 3 parts by mass of an antioxidant, 0 to 3 parts by mass of an ultraviolet absorber, 0 to 3 parts by mass of an infrared absorber, 0 to 3 parts by mass of a light stabilizer, 0 to 3 parts by mass of a heat stabilizer, and 0 to 40 parts by mass of a liquid additive.

[0007] Preferably, the solid modified siloxane polymer is obtained by curing a modified siloxane oligomer by photocuring and / or thermal curing.

[0008] Preferably, the modified siloxane oligomer is of the following formula (I): [ka] (wherein n and m are degrees of polymerization, Each R1 is independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, or aryl groups. R2 is a vinyl group, propenyl group, epoxy group and Q-(CH2) a - Selected from the group consisting of, R3 independently consists of hydrogen, a hydroxyl group, an alkyl group, an alkoxy group, a vinyl group, a propenyl group, and Q-(CH2) a - Selected from the group consisting of, The aforementioned Q-(CH2) a -In this structure, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10.

[0009] Preferably, at least one of the side chain R2 and terminal group R3 of the modified siloxane oligomer is a vinyl group, a propenyl group, an epoxy group, and Q-(CH2) a - (wherein Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10) contains at least one curable group.

[0010] Preferably, the content of the curable group is 0.1% to 20% by mass of the modified siloxane oligomer.

[0011] Preferably, when R3 is not a curable group, n=1 to 100,000 and m=1 to 10,000, and when R3 is a curable group, n=1 to 100,000 and m=0 to 10,000.

[0012] Preferably, the molecular weight Mn of the modified siloxane oligomer is 1,000 to 1,000,000.

[0013] Preferably, the modified siloxane oligomer has one or more of the following: a chain-like structure, a network-like structure, and a three-dimensional stereostructure.

[0014] Preferably, the first protective layer or the second protective layer is, by mass percentage, 44 to 99.99 parts by mass of a modified siloxane oligomer, 0 to 3 parts by mass of an antioxidant, 0 to 3 parts by mass of an ultraviolet absorber, 0 to 3 parts by mass of an infrared absorber, 0 to 3 parts by mass of a light stabilizer, 0 to 3 parts by mass of a heat stabilizer, 0.01 to 1 part by mass of an initiator, It is formed from a raw material containing 0 to 40 parts by mass of a liquid additive.

[0015] Preferably, the antioxidant is one or more of epoxidized soybean oil, DTDTP, and antioxidant 535, and the addition amount is 0.01 to 3 parts by mass.

[0016] Preferably, the ultraviolet absorber is one or more of UV-99, UV-326, UV-3`84, and UV-1130, and the addition amount is 0.01 to 3 parts by mass.

[0017] Preferably, the infrared absorber is one or more of indium oxide nanoparticles, tungsten oxide nanoparticles, and tin oxide nanoparticles, and the addition amount is 0.01 to 3 parts by mass.

[0018] Preferably, the light stabilizer is one or more of light stabilizer UV-144, light stabilizer UV-249, and light stabilizer UV-292, and the addition amount is 0.01 to 3 parts by mass.

[0019] Preferably, the heat stabilizer is one or more of dibutyltin laurate, stannous 2-ethylhexanoate, and phosphite esters, and the addition amount is 0.01 to 3 parts by mass.

[0020] Preferably, the initiator contains one or more photoinitiators of photoinitiator 819, photoinitiator 184, photoinitiator 1130, photoinitiator BDK, photoinitiator TPO, and photoinitiator Irgacure 250.

[0021] Preferably, the initiator comprises one or more thermal initiators selected from thermal initiator BPO, thermal initiator TPB, and thermal initiator AIBN.

[0022] Preferably, the liquid additive is one or more of phthalate esters, trimellitic acid esters, terephthalate esters, epoxy esters, acrylic resins, and methacrylic resins, and the amount added is 0.01 to 40 parts by mass.

[0023] Preferably, the thickness of the first protective layer and / or the second protective layer is 1 to 10 μm.

[0024] Preferably, an undercoat layer is further provided between the first transparent electrode and the first protective layer, and / or between the second transparent electrode and the second protective layer, applied on the first electrode and / or the second electrode. The aforementioned undercoat layer is made of one or more materials selected from epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, and silica gel.

[0025] Preferably, the light control layer is one of a suspended particle light-modulating layer, a polymer-dispersed liquid crystal light-modulating layer, and an electrochromic light-modulating layer.

[0026] Preferably, the first protective layer, the light control layer, and the second protective layer are formed by layer-by-layer coating or multilayer co-extrusion coating.

[0027] The present invention provides a dimmable glass comprising a first glass plate, a second glass plate, and a light bulb according to any of the above embodiments provided between the first glass plate and the second glass plate.

[0028] Preferably, a first intermediate sandwiching film layer is provided between the first glass plate and the light bulb, and / or a second intermediate sandwiching film layer is provided between the second glass plate and the light bulb.

[0029] Furthermore, the present invention provides a modified siloxane oligomer having a structure represented by the following formula (I), which can be used in light bulbs. [ka] In the formula, n and m are degrees of polymerization. Each R1 is independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, or aryl groups. R2 is a vinyl group, propenyl group, epoxy group and Q-(CH2) a - Selected from the group consisting of, Each of the R3 groups can independently be hydrogen, a hydroxyl group, an alkyl group, an alkoxy group, a vinyl group, a propenyl group, or Q-(CH2) a - Selected from the group consisting of, The aforementioned Q-(CH2) a In -, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10.

[0030] This invention provides a light bulb. Compared to conventional technology, conventional light bulbs suffered from poor protection due to ineffective protective layers, resulting in inferior weather resistance and long-term stability. In this invention, a modified siloxane oligomer with a specific structure was devised and creatively used as the material for the protective layer of the light bulb.

[0031] In this invention, by using a modified siloxane high polymer as the material for the protective layer adjacent to the light control layer, the thermal stability and light stability of the entire light bulb can be greatly improved, while also achieving stronger interlayer adhesion. This solves the conventional problem of light bulbs rapidly degrading during thermal aging tests over time.

[0032] According to the proposed technical solution for a protective layer containing a modified siloxane high polymer, the weather resistance, lifespan, and yield of light bulb products can be improved. Furthermore, because the curing method for this modified siloxane high polymer is simple, this light bulb protective layer according to the present invention can be easily realized by UV light curing technology or thermocuring technology. In addition, since a layer-by-layer coating method or a multi-layer co-extrusion coating method may be used in the manufacturing method of the light bulb, manufacturing can be carried out simply and stably, the process is simple and easy to control, and it is more suitable for large-scale industrial production and widespread application.

[0033] Experimental results revealed that using a light bulb with a modified siloxane polymer protective layer according to the present invention increased the peeling force by approximately 1-2 N. Furthermore, using a sample obtained by a multilayer co-extrusion coating method resulted in an even greater peeling force and improved adhesion. A significant increase was observed when comparing radiation resistance. The difference in radiation resistance is thought to be mainly due to the disposal of additives in the modified siloxane polymer. In addition, the light bulb made of modified siloxane polymer showed significantly improved thermal aging. This is mainly because of the good compatibility between the siloxane system and the light control layer system, as well as the fact that the modified siloxane polymer itself has much stronger cut properties compared to other materials. [Brief explanation of the drawing]

[0034] [Figure 1] Figure 1 is a schematic diagram of the light bulb according to the present invention. [Modes for carrying out the invention]

[0035] To further understand the present invention, preferred embodiments will be described below with reference to examples, but it should be understood by those skilled in the art that these descriptions are merely for further interpretation of the features and advantages of the present invention and do not limit the scope of the claims.

[0036] For all raw materials in the present invention, their origin is not particularly limited, and they may be commercially available products or those produced by ordinary methods well-known to those skilled in the art.

[0037] For all raw materials in the present invention, their purity is not particularly limited, and it is preferable to use the ordinary purity used in the field of analytical reagents or the production of modified siloxane oligomers.

[0038] The present invention provides a modified siloxane oligomer having a structure represented by the following formula (I) and used in a light valve.

Chemical formula

[0039] The present invention is a light valve including a first transparent electrode provided on a first transparent substrate, a second transparent electrode provided on a second transparent substrate, and a light control layer provided between the first transparent electrode and the second transparent electrode, A first protective layer is provided between the first transparent electrode and the light control layer, and / or A second protective layer is provided between the second transparent electrode and the light control layer, The present invention provides a light bulb in which the first protective layer and / or second protective layer contain a solid modified siloxane polymer, comprising, by mass percentage, 45 to 100 parts by mass of a solid modified siloxane polymer, 0 to 3 parts by mass of an antioxidant, 0 to 3 parts by mass of an ultraviolet absorber, 0 to 3 parts by mass of an infrared absorber, 0 to 3 parts by mass of a light stabilizer, 0 to 3 parts by mass of a heat stabilizer, and 0 to 40 parts by mass of a liquid additive.

[0040] In the present invention, the modified siloxane oligomer is preferably a curable modified siloxane oligomer.

[0041] In the present invention, the curing method preferably includes UV light curing and / or thermal curing, and more preferably UV light curing and / or thermal curing.

[0042] In the present invention, the modified siloxane oligomer has a structure represented by the following formula (I). [ka] In the formula, n and m are degrees of polymerization. Each R1 is independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, or aryl groups. R2 is a vinyl group, propenyl group, epoxy group and Q-(CH2) a - Selected from the group consisting of, Each of the R3 groups can independently be hydrogen, a hydroxyl group, an alkyl group, an alkoxy group, a vinyl group, a propenyl group, or Q-(CH2) a - Selected from the group consisting of, However, the above Q-(CH2) a In -, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10.

[0043] In the present invention, it is preferable that at least one of the side chain R2 and terminal group R3 of the modified siloxane oligomer contains a curable group.

[0044] Specifically, in the present invention, the curable group is a vinyl group, a propenyl group, an epoxy group and Q-(CH2) a - Preferably at least one of the following: vinyl group, propenyl group, epoxy group or Q-(CH2) a - is more preferable. However, the above Q-(CH2) a In -, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10.

[0045] In the present invention, the content of the curable group is preferably 0.1% to 20% by mass of the modified siloxane oligomer, more preferably 4% to 16% by mass, and even more preferably 8% to 12% by mass.

[0046] In the present invention, the molecular weight Mn of the modified siloxane oligomer is preferably 1,000 to 100,000, more preferably 10,000 to 80,000, even more preferably 20,000 to 60,000, and even more preferably 30,000 to 40,000.

[0047] In the present invention, the modified siloxane oligomer preferably has one or more of the following: a chain-like structure, a network structure, and a three-dimensional stereostructure, and more preferably a chain-like structure, a network structure, or a three-dimensional stereostructure.

[0048] In the present invention, when R3 is not a curable group, it is preferable that n = 1 to 100,000, more preferably that n = 10 to 80,000, even more preferably that n = 100 to 50,000, even more preferably that n = 1,000 to 30,000, and most preferably that n = 5,000 to 20,000; it is preferable that m = 1 to 10,000, more preferably that m = 10 to 8,000, even more preferably that m = 100 to 6,000, even more preferably that m = 500 to 5,000, and particularly preferably that m = 1,000 to 3,000.

[0049] In the present invention, when R3 is a curable group, it is preferable that n = 1 to 100,000, more preferably that n = 10 to 80,000, even more preferably that n = 100 to 50,000, even more preferably that n = 1,000 to 30,000, and most preferably that n = 5,000 to 20,000; it is preferable that m = 1 to 10,000, more preferably that m = 1 to 8,000, even more preferably that m = 10 to 6,000, even more preferably that m = 50 to 5,000, particularly preferably that m = 1,000 to 3,000, and most preferably that m = 500 to 2,000.

[0050] In the present invention, it is preferable to obtain a modified siloxane polymer after curing the modified siloxane oligomer.

[0051] In the present invention, it is preferable that the modified siloxane polymer is used in the modified siloxane polymer protective layer of the light bulb.

[0052] In the present invention, the amount of modified siloxane oligomer added is preferably 44 to 99.99 parts by mass, more preferably 54 to 89% by mass, and even more preferably 64 to 79% by mass.

[0053] In the present invention, the amount of antioxidant added is preferably 0 to 3 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.1 to 2% by mass, and still more preferably 0.5 to 1% by mass.

[0054] In the present invention, the amount of ultraviolet absorber added is preferably 0 to 3 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.1 to 2% by mass, and still more preferably 0.5 to 1% by mass.

[0055] In the present invention, the amount of infrared absorbent added is preferably 0 to 3 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.1 to 2% by mass, and still more preferably 0.5 to 1% by mass.

[0056] In the present invention, the amount of light stabilizer added is preferably 0 to 3 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.1 to 2% by mass, and still more preferably 0.5 to 1% by mass.

[0057] In the present invention, the amount of heat stabilizer added is preferably 0 to 3 parts by mass, more preferably 0.01 to 3 parts by mass, even more preferably 0.1 to 2% by mass, and still more preferably 0.5 to 1% by mass.

[0058] In the present invention, the amount of the initiator added is preferably 0.01 to 1 part by mass, more preferably 0.1 to 0.8% by mass, even more preferably 0.2 to 0.6% by mass, and still more preferably 0.3 to 0.4% by mass.

[0059] In the present invention, the amount of the liquid additive added is preferably 0 to 40 parts by mass, more preferably 0.01 to 30% by mass, even more preferably 0.1 to 20% by mass, and still more preferably 1 to 10% by mass.

[0060] In the present invention, the antioxidant is preferably one or more of epoxidized soybean oil, DTDTP, and antioxidant 535, and more preferably epoxidized soybean oil, DTDTP, or antioxidant 535.

[0061] In the present invention, the ultraviolet absorber is preferably one or more of UV99, UV326, UV384, and UV1130, and more preferably UV99, UV326, UV384, or UV1130.

[0062] In the present invention, the infrared absorber is preferably one or more of nano-indium oxide, nano-tungsten oxide, and nano-tin oxide, and more preferably nano-indium oxide, nano-tungsten oxide, or nano-tin oxide.

[0063] In the present invention, the light stabilizer is preferably one or more of the light stabilizers UV144, UV249, and UV292, and more preferably UV144, UV249, or UV292.

[0064] In the present invention, the heat stabilizer is preferably one or more of dibutyltin laurate, stannous 2-ethylhexanoate, and phosphite ester, and more preferably dibutyltin laurate, stannous 2-ethylhexanoate, or phosphite ester.

[0065] In the present invention, it is preferable that the initiator includes a photoinitiator and a thermal initiator.

[0066] In the present invention, the photoinitiator is preferably one or more of the photoinitiators 819, 184, 1130, BDK, TPO, and Irgacure 250, and more preferably 819, 184, 1130, BDK, TPO, or Irgacure 250.

[0067] In the present invention, the thermal initiator is preferably one or more of thermal initiators BPO, thermal initiator TPB, and thermal initiator AIBN, and more preferably thermal initiator BPO, thermal initiator TPB, or thermal initiator AIBN.

[0068] In the present invention, the liquid additive is preferably one or more of phthalate esters, trimellitic acid esters, terephthalate esters, epoxy esters, acrylic resins, and methacrylic resins, and more preferably phthalate esters, trimellitic acid esters, terephthalate esters, epoxy esters, acrylic resins, or methacrylic resins.

[0069] In the present invention, it is preferable to obtain a modified siloxane high polymer protective layer by UV light curing and / or thermal curing of the raw material for the protective layer, and it is more preferable to obtain a modified siloxane high polymer protective layer by UV light curing or thermal curing.

[0070] In the present invention, in order to improve the performance of the light bulb, such as its UV protection, the modified siloxane polymer further contains one or more of the following: antioxidant (0.1% to 3%), UV absorber (0.1% to 3%), infrared absorber (0.1% to 3%), light stabilizer (0.1% to 3%), and heat stabilizer (0.1% to 3%).

[0071] In the present invention, the thickness of the first protective layer and / or the second protective layer is 1 to 10 μm. The thickness is preferably 1 to 10 μm, more preferably 3 to 8 μm, and even more preferably 5 to 6 μm.

[0072] In the present invention, the space between the first transparent electrode and the first protective layer, and / or between the second transparent electrode and the second protective layer, further includes an undercoat layer applied on the first electrode and / or on the second electrode.

[0073] In the present invention, the undercoat layer is preferably made of one or more materials selected from epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, and silica gel, and more preferably epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, or silica gel.

[0074] In the present invention, the transparent electrode is preferably an ITO conductive layer, an FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, an Ag nanowire conductive layer, a conductive graphene layer, and a Cu nanowire conductive layer.

[0075] In the present invention, the transparent substrate preferably contains PET and / or glass, and more preferably contains PET or glass.

[0076] In the present invention, the light control layer is preferably one or more of the suspended particle light-modulating layer, polymer-dispersed liquid crystal light-modulating layer, and electrochromic light-modulating layer, and more preferably a suspended particle light-modulating layer, a polymer-dispersed liquid crystal light-modulating layer, or an electrochromic light-modulating layer.

[0077] In the present invention, it is preferable that the light bulb is manufactured by coating.

[0078] In the present invention, the coating is preferably a layer-by-layer coating or a multilayer co-extrusion coating. More preferably, the first protective layer, the light control layer, and the second protective layer are formed by multilayer co-extrusion coating.

[0079] The entire technical proposal of this invention will be described in full and in detail. In order to more effectively ensure the performance of the modified siloxane oligomer, enhance the stability and adhesion of the protective layer of the light bulb, and further improve the overall performance of the final light bulb, the modified siloxane oligomer may have the following specific structure.

[0080] This curable modified siloxane oligomer has a siloxane main chain and contains a curable group in at least one of its side chains or terminals.

[0081] Specifically, the content of the curable group is 0.1% to 20% of the total amount.

[0082] Specifically, the curable group is one or more of the following: vinyl group, propenyl group, acryloyloxy group, methacryloyloxy group, or epoxy group.

[0083] Specifically, the curable modified siloxane oligomers have a molecular weight of Mn = 1,000 to 100,000.

[0084] Specifically, the curable modified siloxane oligomer may have a chain-like structure, a network-like structure, or even a three-dimensional structure. More preferably, the curable modified siloxane oligomer has a chain-like structure.

[0085] This curable modified siloxane oligomer has a structure represented by the following formula (I). [ka] In the formula, R1 is one or more of hydrogen, alkyl groups, alkoxy groups, and aryl groups. R2 is one or more of the following: vinyl group, propenyl group, acryloyloxy group, methacryloyloxy group, epoxy group. R3 is one or two of the following: hydrogen, hydroxyl group, alkyl group, alkoxy group, vinyl group, propenyl group, acryloyloxy group, or methacryloyloxy group.

[0086] If R3 is not a curable group, n=1 to 100,000 and m=1 to 10,000. If R3 is a curable group, n=1 to 100,000 and m=0 to 10,000.

[0087] The light bulb according to the present invention comprises a light control layer, a protective layer which is a modified siloxane high polymer protective layer superimposed on the upper and lower surfaces of the light control layer, and transparent electrodes and a transparent substrate which are superimposed on the upper and lower surfaces of the protective layer. However, the modified siloxane high polymer protective layer includes the modified siloxane high polymer protective layer described in any one of the above-mentioned technical proposals.

[0088] In the present invention, the thickness of the protective layer is preferably 1 to 10 μm, more preferably 3 to 8 μm, and even more preferably 5 to 6 μm.

[0089] In the present invention, it is preferable that the space between the transparent electrode and the protective layer includes an undercoat layer superimposed on the transparent electrode.

[0090] In the present invention, the undercoat layer is preferably made of one or more materials selected from epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, and silica gel, and more preferably formed using epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, or silica gel as the material.

[0091] In the present invention, it is preferable that the transparent electrode includes an ITO conductive layer, an FZO conductive layer, an IZO conductive layer, a GZO conductive layer, an AZO conductive layer, a PEDOT conductive layer, an Ag nanowire conductive layer, a conductive graphene layer, and a Cu nanowire conductive layer.

[0092] In the present invention, the transparent substrate is preferably PET and / or glass, and more preferably PET or glass.

[0093] In the present invention, the light control layer is preferably one or more of the suspended particle light-modulating layer, polymer-dispersed liquid crystal light-modulating layer, and electrochromic light-modulating layer, and more preferably a suspended particle light-modulating layer, a polymer-dispersed liquid crystal light-modulating layer, or an electrochromic light-modulating layer.

[0094] In the present invention, it is preferable that the light bulb is manufactured by coating.

[0095] In the present invention, the coating is preferably a layer-by-layer coating or a multilayer co-extrusion coating.

[0096] Referring to Figure 1, a schematic diagram of the light bulb according to the present invention is shown. Here, 11 is ITO / PET or ITO / glass, 12 is an undercoat layer (may or may not contain), 22 is a protective layer, and 21 is a light control layer.

[0097] Specifically, the undercoat layer is one of the following: epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, or silica gel.

[0098] Specifically, the protective layer is a modified siloxane polymer.

[0099] Specifically, the following additives can be added. UV absorbers: One or more of the following: UV99, UV326, UV384, UV1130. Light stabilizer: One or more of UV144, UV249, or UV292. Antioxidants: One or more of the following: epoxidized soybean oil, DTDTP, or antioxidant 535. Infrared absorber: One or more of the following: nano-indium oxide, nano-tungsten oxide, or nano-tin oxide. Heat stabilizer: One or more of the following: dibutyltin laurate, stannous 2-ethylhexanoate, and phosphate esters.

[0100] The modified siloxane high polymer used in the protective layer according to the present invention is realized by using UV light curing or thermosetting technology on a curable modified siloxane oligomer.

[0101] The present invention provides a dimmable glass comprising a first glass plate, a second glass plate, and a light bulb according to any one of the above-mentioned technical proposals, provided between the first glass plate and the second glass plate.

[0102] In the present invention, it is preferable that a first intermediate sandwiching film layer is provided between the first glass plate and the light bulb, and / or that a second intermediate sandwiching film layer is provided between the second glass plate and the light bulb, and it is more preferable that a first intermediate sandwiching film layer is provided between the first glass plate and the light bulb, and a second intermediate sandwiching film layer is provided between the second glass plate and the light bulb.

[0103] In the present invention, the types of the first glass plate and the second glass plate are not particularly limited and may be any ordinary transparent glass for dimming glass that is well known to those skilled in the art, or they may be general-purpose glass such as inorganic glass or organic glass, or functional glass such as UV-cut glass, IR-cut glass, Low-E glass, tempered glass or antibacterial glass.

[0104] In the present invention, the types of the first and second intermediate sandwiching layers are not particularly limited and may be any ordinary intermediate sandwiching layers for dimmable glass that are well known to those skilled in the art. These may be EVA films, TPU films, PVB films, or functional films such as UV-cut EVA films, UV-cut TPU films, or UV-cut PVB films.

[0105] In the present invention, the method for manufacturing the dimmable glass is not particularly limited, and any conventional interlayer cutting method for dimmable glass in the art is acceptable. For example, the interlayer cutting can be performed in a laminator, or in an autoclave pressure vessel or an interlayer cutting box / heating furnace.

[0106] The present invention provides a light bulb and dimmable glass, as well as the application of a modified siloxane oligomer to the light bulb. In this invention, a modified siloxane oligomer with a specific structure is devised and applied as a protective layer material for the light bulb. In this invention, by using a modified siloxane high polymer as the material for the protective layer adjacent to the light control layer, the thermal stability and light stability of the entire light bulb can be greatly improved, while also achieving stronger interlayer adhesion. This solves the problem that conventional light bulbs deteriorate quickly in thermal aging tests over time.

[0107] According to the proposed technical solution for a protective layer containing a modified siloxane high polymer, the weather resistance, lifespan, and yield of light bulb products can be improved. Furthermore, because the curing method for this modified siloxane high polymer is simple, this light bulb protective layer according to the present invention can be easily realized by UV light curing technology or thermocuring technology. In addition, since a layer-by-layer coating method or a multi-layer co-extrusion coating method may be used in the manufacturing method of the light bulb, manufacturing can be carried out simply and stably, the process is simple and easy to control, and it is more suitable for large-scale industrial production and widespread application.

[0108] Experimental results revealed that using a light bulb with a modified siloxane polymer protective layer according to the present invention increased the peeling force by approximately 1-2 N. Furthermore, using a sample obtained by a multilayer co-extrusion coating method resulted in an even greater peeling force and improved adhesion. A significant increase was observed when comparing radiation resistance. The difference in radiation resistance is thought to be mainly due to the disposal of additives in the modified siloxane polymer. In addition, the light bulb made of modified siloxane polymer showed significantly improved thermal aging. This is mainly because of the good compatibility between the siloxane system and the light control layer system, as well as the fact that the modified siloxane polymer itself has much stronger cut properties compared to other materials.

[0109] To further illustrate the present invention, the light bulb and dimmable glass according to the present invention, as well as the application of modified siloxane oligomers to the light bulb, will be described in detail below with reference to examples. However, these examples are based on the technical concept of the present invention, and are merely intended to illustrate detailed embodiments and specific operating procedures, and to further interpret the features and advantages of the present invention. They do not limit the claims of the present invention, and the scope of protection of the present invention is not limited to the following examples.

[0110] term The following terms used in this invention have the meanings defined below.

[0111] Curing refers to the polymerization reaction that occurs in the active groups located in the side chains and / or terminals of a modified siloxane oligomer. In other words, it occurs under thermal or photocatalytic conditions, for example, by adding a photoinitiator to the raw materials of a protective layer containing a modified siloxane oligomer and inducing a polymerization reaction by UV light irradiation.

[0112] A curable group is an active group that can participate in polymerization reactions on the side chains and / or terminals of a modified siloxane oligomer.

[0113] Here, the three terms solid-modified siloxane polymer, modified siloxane polymer, and modified siloxane high polymer have equivalent meanings. The two terms curable-modified siloxane oligomer and modified siloxane oligomer also have equivalent meanings.

[0114] Structural formula 1 [ka]

[0115] Structural formula 2 is the general formula of the curable modified siloxane oligomer A synthesized in the present invention. [ka] (In the formula, a + b = n, and R2 is an acryloyloxypropyl group.)

[0116] Structural formula 3 is the general formula of the curable modified siloxane oligomer B synthesized in the present invention. [ka] (In the formula, R2 is an acryloyloxypropyl group.)

[0117] In Example 15, the general formula for poly[dimethylsiloxane-co-(2-(3,4-epoxycyclohexyl)ethyl)methylsiloxane] is as follows: [ka] (In the formula, R2 is a 2-(3,4-epoxycyclohexyl)ethyl group.)

[0118] In Example 16, the general formula for the divinyl-terminated poly(dimethylsiloxane-co-diphenylsiloxane) is as follows: [ka] (In the equation, a+b=n, m=0, and R3 is a vinyl group.)

[0119] In Example 17, the general formula for the vinyl-terminated poly(dimethylsiloxane) is as follows: [ka] (In the formula, m=0, and R3 is a vinyl group.)

[0120] [Example 1] <Method for synthesizing curable modified siloxane oligomer A> 500 g of hydroxy-terminated dimethyldiphenylpolysiloxane and 1000 ml of toluene were placed in a 2000 ml three-necked flask. A condenser was connected to one side of the flask via a water splitter, a mechanical stirrer was placed in the middle tube, and a thermometer was placed in the other side tube. The solution was heated in the flask and refluxed for 30 minutes. When a small amount of water appeared in the water splitter, a solution of stannous octanoate was added as a catalyst (1.3 g dissolved in 100 ml of toluene). Next, a mixture of 30 g of hydrolyzed acryloyloxypropyltrimethoxysilane and 18 g of hydrolyzed epoxypropyltrimethylsiloxane was added dropwise for about 5 minutes. After the condensation reaction took about 5 hours, 30 ml of trimethylmethoxysilane was immediately added as a reaction terminator. After the termination reaction was allowed for 2 hours, the mixture was rapidly cooled to room temperature.

[0121] The reaction mixture was poured into a 2000 ml round-bottom flask and rotated at 70°C at 10 mbar for 2 hours to obtain curable modified siloxane oligomer A, i.e., Sample 1. The yield was 530 g.

[0122] [Example 2] <Method for synthesizing curable modified siloxane oligomer B> 520 g of hydroxy-terminated dimethyldiphenylpolysiloxane and 1000 ml of toluene were placed in a 2000 ml three-necked flask. A condenser was connected to one side of the flask via a water splitter, a mechanical stirrer was placed in the middle tube, and a thermometer was placed in the other side tube. The solution was heated in the flask and refluxed for 30 minutes. When a small amount of water appeared in the water splitter, a solution of stannous octanoate was added as a catalyst (1.3 g dissolved in 100 ml of toluene). Next, a mixture of 30 g of hydrolyzed acryloyloxypropyltrimethoxysilane and 18 g of hydrolyzed epoxypropyltrimethylsiloxane was added dropwise for about 5 minutes. After the condensation reaction proceeded for about 5 hours, 30 ml of trimethylmethoxysilane was immediately added as a reaction terminator. After the termination reaction was continued for 2 hours, the mixture was rapidly cooled to room temperature.

[0123] The reaction mixture was poured into a 2000 ml round-bottom flask and rotated at 70°C at 10 mbar for 2 hours to obtain curable modified siloxane oligomer B, i.e., sample 2. The yield was 550 g.

[0124] [Example 3] <Preparation of Modified Siloxane Oligomer Ink #1> In a 500 ml round-bottom flask, 0.1 g of UV99, 0.1 g of UV144 light stabilizer, 0.02 g of photoinitiator 819, 9.78 g of curable modified siloxane oligomer A, and 100 g of ethanol were charged. After stirring thoroughly for 30 minutes until homogeneous, the flask was placed in a rotary evaporator and subjected to rotary evaporation for 1 hour under the conditions of a water bath temperature of 60°C, a rotation speed of 60 rpm, and a vacuum of 10 mbar to obtain modified siloxane oligomer ink 1# containing UV absorber UV99.

[0125] [Example 4] <Preparation of Modified Siloxane Oligomer Ink #2> The preparation was carried out in the same manner as in Example 3, except that UV326 was used instead of UV99.

[0126] [Example 5] <Preparation of Modified Siloxane Oligomer Ink #3> The preparation was carried out in the same manner as in Example 3, except that UV384 was used instead of UV99.

[0127] [Example 6] <Preparation of Modified Siloxane Oligomer Ink #4> The preparation was carried out in the same manner as in Example 3, except that UV1130 was used instead of UV99.

[0128] [Example 7] <Preparation of Modified Siloxane Oligomer Ink #5> The preparation was carried out in the same manner as in Example 3, except that UV249 was used instead of UV144.

[0129] [Example 8] <Preparation of Modified Siloxane Oligomer Ink #6> The preparation was carried out in the same manner as in Example 3, except that UV292 was used instead of UV144.

[0130] [Example 9] <Preparation of Modified Siloxane Oligomer Ink #7> The preparation was carried out in the same manner as in Example 3, except that 0.3g of UV99 was used instead of 0.1g of UV99, and 9.58g of curable modified siloxane oligomer A was used instead of 9.78g of curable modified siloxane oligomer A.

[0131] [Example 10] <Preparation of Modified Siloxane Oligomer Ink #8> The preparation was carried out in the same manner as in Example 3, except that 0.01 g of UV326 was used instead of 0.1 g of UV99, and 9.97 g of curable modified siloxane oligomer A was used instead of 9.78 g of curable modified siloxane oligomer A.

[0132] [Example 11] <Preparation of Modified Siloxane Oligomer Ink #9> The preparation was carried out in the same manner as in Example 3, except that 0.1 g of the antioxidant DTDTP was used instead of 0.1 g of the light stabilizer UV144.

[0133] [Example 12] <Preparation of Modified Siloxane Oligomer Ink #10> The preparation was carried out in the same manner as in Example 3, except that 0.1 g of antioxidant 535 was used instead of 0.1 g of light stabilizer UV144. [Example 13] <Preparation of Modified Siloxane Oligomer Ink 11#> The preparation was carried out in the same manner as in Example 3, except that 0.3 g of the antioxidant epoxidized soybean oil was used instead of 0.1 g of the light stabilizer UV144, and 9.68 g of the curable modified siloxane oligomer A was used instead of 9.88 g of the curable modified siloxane oligomer A.

[0134] [Example 14] <Preparation of Modified Siloxane Oligomer Ink #12> The preparation was carried out in the same manner as in Example 3, except that curable modified siloxane oligomer B was used instead of curable modified siloxane oligomer A.

[0135] [Example 15] <Preparation of Modified Siloxane Oligomer Ink #13> The preparation was carried out in the same manner as in Example 3, except that poly[dimethylsiloxane-co-(2-(3,4-epoxycyclohexyl)ethyl)methylsiloxane] was used instead of curable modified siloxane oligomer A, and the photoinitiator Irgacure250 was used instead of photoinitiator 819.

[0136] [Example 16] <Preparation of Modified Siloxane Oligomer Ink #14> The preparation was carried out in the same manner as in Example 3, except that vinyl-terminated poly(dimethylsiloxane) was used instead of curable modified siloxane oligomer A, and the thermal initiator BPO was used instead of photoinitiator 819.

[0137] [Example 17] <Preparation of Modified Siloxane Oligomer Ink #15> The preparation was carried out in the same manner as in Example 3, except that poly(dimethylsiloxane-co-diphenylsiloxane) with a divinyl terminator was used instead of curable modified siloxane oligomer A, and the thermal initiator BPO was used instead of the photoinitiator 819.

[0138] [Example 18] <Preparation of light bulb sample 1-1 by layer coating> The ITO / PET containing the undercoat layer was placed on a blade coating platform and fixed to the platform by vacuum. 1 g of the modified siloxane oligomer ink #1 from Example 3 was uniformly added to one side of the platform. The instrument was turned on with a doctor blade thickness of 10 μm and a doctor blade speed of 2 cm / s, and the modified siloxane oligomer ink was uniformly coated onto the surface of the undercoat layer using the blade. The sample was placed under a UV lamp and cured to a hardness of 300 W / m². 2 The mixture was cured under conditions of a curing time of 5 seconds to obtain the lower substrate. The above procedure was repeated until the upper substrate was obtained. Then, the lower substrate was removed, and a light-controlled layer colloidal solution was coated onto it using the blade coating method, with a doctor blade thickness of 60 μm and a doctor blade speed of 2 cm / s. Next, the sample was placed under a UV lamp and cured to a curing intensity of 2000 W / m². 2 The material was cured under conditions of a curing time of 15 seconds. After complete curing, the upper substrate was attached on top, and the sample was obtained by molding while pressing with a roll.

[0139] Samples 1-2 to 1-12 were prepared in the same manner as in Example 18, except that modified siloxane oligomer inks 2# to 12# from Examples 4 to 14 were used instead of modified siloxane oligomer ink 1# from Example 3.

[0140] [Example 19] <Preparation of Light Bulb Sample 2-1 by Multilayer Co-Extrusion Coating> The ITO / PET containing the undercoat layer was placed on a blade coating platform and fixed to the platform by vacuum. 50g of the modified siloxane oligomer ink #1 from Example 3 was added to the multilayer co-extrusion coating die type raw material tank A, and 50g of the light-controlled layer ink was added to the raw material tank B. The platform movement speed was set to 1.3 cm / s. After preparing the liquid coating layer under conditions where the pressure in raw material tank A was 0.4 MPa and the pressure in raw material tank B was 0.3 MPa, the ITO / PET containing the undercoat layer was loosely pressed onto the other side of the sample with a roll to coat the liquid coating layer. The sample was then placed under a UV lamp and the curing strength was set to 2000 W / m². 2 The sample was obtained by curing the sample under conditions where the curing time was set to 15 seconds.

[0141] Samples 2-2 to 2-12 were prepared in the same manner as in Example 19, except that modified siloxane oligomer inks 2# to 12# from Examples 4 to 14 were used instead of modified siloxane oligomer ink 1# from Example 3.

[0142] [Example 20] <Preparation of light bulbs 1-13 by layer coating> Instead of modified siloxane oligomer ink #1 in Example 3, modified siloxane oligomer ink #13 in Example 15 was used, and the sample was placed under a UV lamp to achieve a curing strength of 300 W / m². 2 The preparation was carried out in the same manner as in Example 18, except that instead of curing under conditions of a curing time of 5 seconds, the sample was cured by placing it in an oven at 60°C for a curing time of 5 minutes.

[0143] Samples 1-14 to 1-15 were prepared in the same manner as in Example 20, except that modified siloxane oligomer inks 14# to 15# from Examples 16-17 were used instead of modified siloxane oligomer ink 1# from Example 3.

[0144] [Example 21] <Preparation of Light Bulb Sample 2-13 by Multilayer Co-Extrusion Coating> Instead of modified siloxane oligomer ink #1 in Example 3, modified siloxane oligomer ink #13 in Example 15 was used, and the sample was placed under a UV lamp to achieve a curing strength of 2000 W / m². 2 The preparation was carried out in the same manner as in Example 19, except that instead of curing the sample under conditions of a curing time of 15 seconds, the sample was cured by placing it in an oven at 60°C for a curing time of 5 minutes.

[0145] Samples 2-14 to 2-15 were prepared in the same manner as in Example 21, except that modified siloxane oligomer inks 14 to 15 from Examples 16 to 17 were used instead of modified siloxane oligomer ink 1# from Example 3.

[0146] [Contrasting Proportionality 1] The ITO / PET substrate, including the undercoat layer, was placed on a blade coating platform and fixed to the platform by vacuum. 1 g of methacrylic resin, the material for the first protective layer, was uniformly added to one side of the platform. The device was turned on, and the methacrylic resin, the raw material for the viscous protective layer, was uniformly coated onto the surface of the substrate using the doctor blade, with a doctor blade thickness of 5 μm and a doctor blade speed of 2 cm / s. The substrate was then placed under a UV lamp to achieve a curing strength of 300 W / m². 2 The first protective layer was cured under conditions of a curing time of 5 seconds. Next, 1 g of acrylate, the material for the second protective layer, was uniformly placed on one side of the platform. The instrument was turned on with a doctor blade thickness of 10 μm and a doctor blade speed of 2 cm / s, and the acrylate was uniformly coated onto the surface of the first protective layer using the doctor blade. The sample was placed under a UV lamp and the curing strength was set to 300 W / m². 2The substrate was cured under conditions of a curing time of 5 seconds to obtain the lower substrate. The above procedure was repeated until the upper substrate was obtained. Then, the lower substrate was removed, and a light-controlled layer ink was applied to it using a blade coating method, with a doctor blade thickness of 60 μm and a doctor blade speed of 2 cm / s. Next, the sample was placed under a UV lamp and cured to a curing intensity of 2000 W / m². 2 The material was cured under conditions where the curing time was 15 seconds. After complete curing, the upper substrate was attached on top of it and molded while pressing with a roll to obtain a ratio of 1.

[0147] [Proportional Relations 2] The sample was prepared in the same manner as in the case of proportion 1, except that epoxy resin was used instead of acrylate, which is the material for the second protective layer.

[0148] <Measurement of peeling force of light bulb samples> Using a peel strength measuring instrument, the upper ITO / PET transparent electrode of the sample in the example or proportional example was clamped with a movable clip, and the lower ITO / PET transparent electrode was clamped with a fixed clip. The instrument was then turned on, and the force required to peel the sample using the movable clip at a preset speed was measured. The width of the sample used for measurement was 10 cm, and the unit was N / 10 cm.

[0149] <Irradiation aging test of laminated glass samples> The light bulb samples from the above examples and proportional models were subjected to interlayer cutting to produce laminated glass samples. After that, aging tests were performed using a medium-pressure mercury lamp irradiation aging tester, and the time required for the color difference ΔE to reach 5% was recorded.

[0150] <Thermal aging test of laminated glass sample> The light bulb samples from the above examples and proportional models were subjected to interlayer cutting to produce laminated glass samples. After that, an aging test was performed at 100°C using an oven, and the data after 1000 hours of thermal aging of the samples was recorded.

[0151] Table 1 shows the examples of the present invention and the performance data of samples prepared proportionally.

[0152] [Table 1] JPEG0007830692000013.jpg32170

[0153] From the data in Table 1, it was found that the peeling force of the light bulbs using the modified siloxane polymer protective layer increased by about 1-2 N, and in particular, the samples prepared by multilayer co-extrusion coating showed even greater peeling force and improved adhesion. Comparatively, the radiation resistance of the example samples was significantly higher than that of the proportional sample. This difference in radiation resistance is thought to be mainly due to the disposal of additives in the modified siloxane polymer. Furthermore, thermal aging was clearly improved in the light bulbs made with modified siloxane polymer compared to the proportional sample. This is mainly thought to be due to the good compatibility between the siloxane system and the light control layer, as well as the fact that the modified siloxane polymer itself has much stronger cut properties compared to other materials.

[0154] [Examples of liquid additives] The liquid additive contains one or more of the following: phthalates, trimellitic acid esters, terephthalates, epoxy esters, and methacrylic resins.

[0155] In the examples, octyl phthalate, isodecyl phthalate, butyl phthalate, octyl terephthalate, trioctyl trimellitate, triisodecyl trimellitate, lauryl polymethacrylate, and polyhexyl methacrylate were used, respectively.

[0156] [Example 22] <Preparation of Modified Siloxane Oligomer Ink a> In a 500 ml round-bottom flask, 2 g of the liquid additive octyl phthalate, 0.02 g of photoinitiator 819, 7.98 g of curable modified siloxane oligomer A, and 100 g of ethanol were charged. After stirring thoroughly for 30 minutes until homogeneous, the flask was placed in a rotary evaporator and subjected to rotary evaporation for 1 hour under the conditions of a water bath temperature of 60°C, a rotation speed of 60 rpm, and a vacuum of 10 mbar to obtain modified siloxane oligomer ink a containing the UV absorber UV99.

[0157] [Example 23] <Preparation of Modified Siloxane Oligomer Ink b> The preparation was carried out in the same manner as in Example 22, except that isodecyl phthalate was used instead of octyl phthalate.

[0158] [Example 24] <Preparation of Modified Siloxane Oligomer Ink c> The preparation was carried out in the same manner as in Example 22, except that butyl phthalate was used instead of octyl phthalate.

[0159] [Example 25] <Preparation of Modified Siloxane Oligomer Ink d> The preparation was carried out in the same manner as in Example 22, except that octyl terephthalate was used instead of octyl phthalate.

[0160] [Example 26] <Preparation of Modified Siloxane Oligomer Ink e> The preparation was carried out in the same manner as in Example 22, except that trioctyl trimellitic acid was used instead of octyl phthalate.

[0161] [Example 27] <Preparation of Modified Siloxane Oligomer Ink f> The preparation was carried out in the same manner as in Example 22, except that triisodecyl trimellitic acid was used instead of octyl phthalate.

[0162] [Example 28] <Preparation of Modified Siloxane Oligomer Ink G> The preparation was carried out in the same manner as in Example 22, except that polylauryl methacrylate was used instead of octyl phthalate.

[0163] [Example 29] <Preparation of modified siloxane oligomer colloid solution h> The preparation was carried out in the same manner as in Example 22, except that polyhexyl methacrylate was used instead of octyl phthalate.

[0164] [Example 30] <Preparation of Modified Siloxane Oligomer Ink i> The preparation was carried out in the same manner as in Example 22, except that 3 g of octyl phthalate was used instead of 2 g of octyl phthalate, and 6.98 g of curable modified siloxane oligomer A was used instead of 7.88 g of curable modified siloxane oligomer A.

[0165] [Example 31] 0.02 g of photoinitiator 819, 9.98 g of curable modified siloxane oligomer A, and 100 g of ethanol were charged into a 500 ml round-bottom flask. After stirring thoroughly for 30 minutes until homogeneous, the flask was placed in a rotary evaporator and subjected to rotary evaporation for 1 hour under the conditions of a water bath temperature of 60°C, a rotation speed of 60 rpm, and a vacuum of 10 mbar to obtain modified siloxane oligomer ink j.

[0166] Light bulbs are manufactured using the modified siloxane oligomer inks a to j prepared in Examples 22 to 31 of the present invention. The specific method is the same as in Examples 18 and 19. Here, 1-* is a layer-by-layer coating method, and 2-* is a multilayer co-extrusion coating method.

[0167] Referring to Table 2, performance data is shown for samples prepared with the modified siloxane oligomer inks a to j prepared in Examples 22 to 31 of the present invention and samples prepared with proportional ratios 1 and 2.

[0168] [Table 2] JPEG0007830692000015.jpg60170

[0169] The data in Table 2 shows that the results for the sample using a modified siloxane polymer protective layer containing liquid additives and the sample in Table 1 are consistent in terms of peel strength, and a clear improvement was observed compared to the proportional relationship. Furthermore, significant improvements were observed in radiation resistance and thermal aging performance compared to the proportional relationship.

[0170] The light bulb and dimmable glass according to the present invention, as well as the application of modified siloxane oligomers to light bulbs, have been described in detail above, and the principles and embodiments of the present invention have been explained herein with specific examples. The above description of embodiments is for the purpose of understanding the methods and gist of the present invention and includes optimal forms, and the present invention can be implemented by persons skilled in the art, including the manufacture and use of any apparatus or system, and the implementation of any combined method. Persons skilled in the art can make various improvements and modifications to the present invention as long as they do not depart from the spirit of the invention, and these improvements and modifications shall also be within the scope of protection of the claims of the present invention. The scope of protection of the present invention is limited by the claims and may include other embodiments that persons skilled in the art may conceive. If these other embodiments have structural elements that do not differ from the literal expression of the claims, or if they include equivalent structural elements that do not substantially differ from the literal expression of the claims, these other embodiments should also be within the scope of the claims.

Claims

1. A light bulb comprising a first transparent electrode provided on a first transparent substrate, a second transparent electrode provided on a second transparent substrate, and a light control layer provided between the first transparent electrode and the second transparent electrode, A first protective layer is provided between the first transparent electrode and the light control layer, and / or A second protective layer is provided between the second transparent electrode and the light control layer. The first protective layer and / or the second protective layer contains a solid modified siloxane polymer, comprising, by mass percentage, 45 to 100 parts by mass of a solid modified siloxane polymer, 0 to 3 parts by mass of an antioxidant, 0 to 3 parts by mass of an ultraviolet absorber, 0 to 3 parts by mass of an infrared absorber, 0 to 3 parts by mass of a light stabilizer, 0 to 3 parts by mass of a heat stabilizer, and 0 to 40 parts by mass of a liquid additive. The aforementioned solid modified siloxane polymer is obtained by curing a modified siloxane oligomer by photocuring and / or thermal curing. The modified siloxane oligomer is given by the following formula (I): 【Chemistry 1】 (In the formula, n and m are degrees of polymerization, where n = 1 to 100,000 and m = 1 to 10,000) Each R1 is independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, and aryl groups. R2 is selected from the group consisting of vinyl group, propenyl group, epoxy group and Q-(CH2)a-, Each R3 is independently selected from the group consisting of hydrogen, a hydroxyl group, an alkyl group, an alkoxy group, a vinyl group, a propenyl group, and Q-(CH2)a-. In the above Q-(CH2)a-, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10. ) The structure is represented by A light bulb characterized in that at least one of the side chain R2 and terminal group R3 of the modified siloxane oligomer contains at least one curable group from among a vinyl group, a propenyl group, an epoxy group, and Q-(CH2)a- (where Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is between 2 and 10).

2. The light bulb according to claim 1, characterized in that the content of the curable group is 0.1% to 20% by mass of the modified siloxane oligomer.

3. The light bulb according to claim 1, characterized in that the molecular weight Mn of the modified siloxane oligomer is 1,000 to 1,000,000.

4. The light bulb according to claim 1, characterized in that the modified siloxane oligomer has one or more structures among a chain-like structure, a network-like structure, and a three-dimensional stereostructure.

5. The first protective layer or the second protective layer is, by mass percentage, Modified siloxane oligomer, 44 to 99.99 parts by mass, Antioxidant: 0 to 3 parts by mass, UV absorber 0 to 3 parts by mass, Infrared absorber 0 to 3 parts by mass, Light stabilizer 0 to 3 parts by mass, Heat stabilizer: 0 to 3 parts by mass, Initiator: 0.01 to 1 part by mass, The light bulb according to claim 1, characterized in that it is formed from a raw material containing 0 to 40 parts by mass of a liquid additive.

6. The light bulb according to claim 5, characterized in that the antioxidant is one or more of epoxidized soybean oil, DTDTP, and antioxidant 535, and the amount added is 0.01 to 3 parts by mass.

7. The light bulb according to claim 5, characterized in that the ultraviolet absorber is one or more of UV99, UV326, UV384, and UV1130, and the amount added is 0.01 to 3 parts by mass.

8. The light bulb according to claim 5, characterized in that the infrared absorber is one or more of nano-indium oxide, nano-tungsten oxide, and nano-tin oxide, and the amount added is 0.01 to 3 parts by mass.

9. The light bulb according to claim 5, characterized in that the light stabilizer is one or more of the light stabilizer UV144, light stabilizer UV249, and light stabilizer UV292, and the amount added is 0.01 to 3 parts by mass.

10. The light bulb according to claim 5, characterized in that the heat stabilizer is one or more of dibutyltin laurate, stannous 2-ethylhexanoate, and phosphite, and the amount added is 0.01 to 3 parts by mass.

11. The light bulb according to claim 5, characterized in that the initiator comprises one or more photoinitiators selected from photoinitiator 819, photoinitiator 184, photoinitiator 1130, photoinitiator BDK, photoinitiator TPO, and photoinitiator Irgacure 250.

12. The light bulb according to claim 5, characterized in that the initiator comprises one or more thermal initiators selected from thermal initiator BPO, thermal initiator TPB, and thermal initiator AIBN.

13. The light bulb according to claim 5, characterized in that the liquid additive is one or more of phthalate esters, trimellitic acid esters, terephthalate esters, epoxy esters, acrylic resins, and methacrylic resins, and the amount added is 0.01 to 40 parts by mass.

14. The light bulb according to claim 1, characterized in that the thickness of the first protective layer and / or the second protective layer is 1 to 10 μm.

15. The first transparent electrode and the first protective layer, and / or the second transparent electrode and the second protective layer, further comprising an undercoat layer applied on the first electrode and / or on the second electrode, The light bulb according to claim 1, characterized in that the undercoat layer is made of one or more materials selected from epoxy resin, polyurethane, polyimide resin, polystyrene resin, acrylic resin, modified acrylic acid, and silica gel.

16. The light bulb according to claim 1, characterized in that the light control layer is one of a suspended particle light-modulating layer, a polymer-dispersed liquid crystal light-modulating layer, and an electrochromic light-modulating layer.

17. The light bulb according to claim 1, characterized in that the first protective layer, the light control layer, and the second protective layer are formed by layer-by-layer coating or multilayer co-extrusion coating.

18. A dimmable glass comprising a first glass plate, a second glass plate, and a light bulb according to any one of claims 1 to 17, provided between the first glass plate and the second glass plate.

19. The dimmable glass according to claim 18, characterized in that a first intermediate sandwiching film layer is provided between the first glass plate and the light bulb, and / or a second intermediate sandwiching film layer is provided between the second glass plate and the light bulb.

20. A modified siloxane oligomer used in light bulbs, having the structure represented by the following formula (I). 【Chemistry 2】 (In the formula, n and m are degrees of polymerization, where n = 1 to 100,000 and m = 1 to 10,000) R １ Each of these is independently selected from the group consisting of hydrogen, alkyl groups, alkoxy groups, or aryl groups. R ２ These are vinyl groups, propenyl groups, epoxy groups, and Q-(CH ２ ) a - Selected from the group consisting of, R ３ Each of these independently consists of hydrogen, a hydroxyl group, an alkyl group, an alkoxy group, a vinyl group, a propenyl group, and Q-(CH ２ ) a - Selected from the group consisting of, In the Q-(CH ２ ) a -, Q is an acryloyloxy group or a methacryloyloxy group, a is a positive integer, and a is 2 to 10.)

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