TWI356768B - - Google Patents

Description

丄356768 IX. EMBODIMENT DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a light reflecting body for a display device, a lighting, an appliance, an illumination sign or the like of a computer or a television, and more particularly to It is suitable as a light reflector that constitutes a reflector material of an illumination mechanism built in a liquid crystal display device. [Prior Art] The illumination mechanism (backlight mechanism) provided in the liquid crystal display device has: a direct type that directly illuminates light emitted from the light source onto the liquid crystal display panel, and transmits light emitted from the light source A light guide plate composed of an acrylic resin or the like is illuminated on the liquid crystal display panel (also referred to as edge light type). • In the liquid crystal display device, for applications such as monitors, small LCD TVs, and pens, computers, etc., where the thin type is required, the side light type:: upper = mechanism is used to efficiently conduct light from the light source to the light guide plate. Further, a member called a "reflector" formed by forming a light reflector made of a laminated metal and a reflective film is used. In recent years, the display performance has been continuously increased, and in order to increase the performance of the backlight unit by supplying as much light as possible to the liquid crystal, the reflector or the reflective film has higher reflection performance. Only as a reflective film for such a light reflector, a silver-deposited polyethylene terephthalate film (hereinafter referred to as a silver-evaporated pΕτ film) or a white polyester film having a reflective property is used. Etc., depending on the cost or the thickness required for the light reflector, etc., it can be used separately. 312 ΧΡ / Invention Manual (Supplement) / 96-04/95148364 s 1356768 A viscous film disclosed in Patent Document 1 discloses a white reflective sheet formed by adding oxidized yttrium resin. Further, in connection with: t: in the case of a light reflector of a reflector, a light reflector for a film on a metal plate can be used. In order to maintain the shape retention of the shape at the time of bending when forming the light reflector, for example, a reverse (four) is disclosed in the patent, and the money is then placed on the metal to form a polyester reflective film thereon. . "And, the conventional reflector, it is difficult to achieve the recent liquid crystal display device, the reflection performance', and also has the following problems: due to the formation of the film, the fragrance contained in the molecular chain of the resin Since the aromatic ring absorbs ultraviolet rays, the purple film which is emitted from a light source such as a liquid crystal display device is deteriorated, yellowing, and reflective light reflectance is lowered. 1 The thickness is increased. Therefore, the present inventors developed a kind of aliphatic polyg. A reflective film formed by adding a fine powdery filler such as emulsified titanium to a resin is disclosed in Patent Document 3. 'Patent Document 1: Japanese Patent Laid-Open Publication No. 2002-138150 Patent Document 2: Japanese Patent Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. 1 778. Although the forming process is satisfied, the light reflecting film is laminated on a metal plate to form a reflector, and is mounted on a liquid crystal display device of a notebook computer. Switching the display will produce 312XP / invention manual (supplement) / 96-04 / 95148364 6 1356768 noise. The above problems are not only generated on the liquid crystal display device of the notebook computer 'can also be generated on the TV or other display devices The result of investigating the cause of the noise can be found to have the possibility of friction from the light guide plate and the reflector (reflector). Therefore, the present invention provides a light reflector for solving the problem. The light reflecting system can reduce noise generated when the display is turned on, for example, when processed into a reflector and mounted in a liquid crystal display device such as a notebook computer. (Means for Solving the Problem) / The present invention proposes a light reflection The body has a layer A in which an aliphatic polyester resin and a fine powder filler are laminated on one side or both sides of a metal plate, and at least one side of the light reflector The surface has a static friction coefficient of 0.49 or less and a dynamic friction coefficient of less than or equal to. The above-mentioned "-side surface" may be the surface of the eight layers on the side, or may be laminated on the layer A. He surface layer. For example, it may be a surface of the b layer when a layer B formed of a thermosetting resin or a free light-curing resin is laminated on the surface side of the layer A of at least one side φ. The light reflector of the present invention can be obtained by refraction scattering caused by the difference in refractive index between the aliphatic polyacetate tree constituting the layer A and the fine powder filler. • Excellent light reflectivity. Moreover, the static friction coefficient of the surface of at least one side can be set to 0.49 to T, and the dynamic friction coefficient is 〇42 or less. For example, a liquid crystal display device that processes the light reflector into a reflector and is mounted on a notebook computer In the case of internal, the noise is reduced when the switch monitor is lowered. The above-mentioned problem of generating noise is not only when the notebook computer monitor is switched, but also when the notebook is displayed on a television or desktop computer, etc., 312ΧΡ/invention manual (supplement)/96^04/95148364 7 ^56768 The problem you are worried about when doing something. In the second:; Ming: The body: r can be used, for example, to be installed on a computer or television, etc., which can be used as a component of an LCD display. Liquid 曰 Day. Reflector of the backlight device in the device. Membrane: aί! The a layer of the light reflector of the bright light may be thin or thin ~: and the thin plate and the film are not distinguished in the present invention. Generally speaking, in the definition of "JIS", it refers to a thin one. Usually, it is thicker than a long one, and the so-called "film" refers to the phase. Guangtong II/, and the flatness of the maximum thickness is arbitrarily limited to the roll shape supplier (Japanese Industrial Specification Claw_0). However, two = the boundary between the thin plate and the film is determined. In the present invention, it is not necessary to distinguish between words: in the case of the case of "film", thin: plate; even in the case of "thin sheet", In the case of the product: in the case of 'main ingredient', there is no special material that does not impair the meaning of the component of the main component. Although the main component is not particularly specified: 2 or more is used as the main component, and the mass is preferably 90% by mass or more (including the surface). In the book of Che Yujia, it is disclosed as "χ~γ" (χ, γ is an arbitrary number), and there is no special restriction, including "χ below γ", 312ΧΡ/invention manual (supplement) ) /96-04/95148364 1356768 and includes "preferably greater than X is less than Y". - [Embodiment] Hereinafter, an example of an embodiment of the present invention will be described in detail. [First Embodiment] The light reflector (referred to as "the light reflector") of the present embodiment is formed by laminating a layer of bismuth containing a fat, a t Ss 糸 resin, and a fine powder filler as a main component. A light reflector formed on one side or both sides of the plate and having a static friction coefficient and a dynamic friction coefficient of at least one side of the A layer surface within a predetermined range. Further, since the layer A may be provided on one side or both sides of the metal plate, for example, the layer C may be interposed between the metal plate and the layer A. Therefore, in the following description, the layer A and the metal plate will be described, and the layer C will be described. Hereinafter, the structure, characteristics, manufacturing method, and the like of the light reflection will be described. <A layer> The A layer is a layer in which the light-reflective layer is mainly composed of a resin composition A containing at least an aliphatic polyacetal resin and a fine powder filler as a main component. For example, it may be formed into a thin sheet and laminated on a metal plate, or • formed on a metal plate to form a film-like layer. (A layer of aliphatic polyester resin) Since the aliphatic polyester resin does not contain an aromatic ring in the molecular chain, the aliphatic polyester resin can be used as the base resin of the A layer. No ^ • Raw UV absorption. Therefore, it is not deteriorated or yellowed by exposure to ultraviolet rays or ultraviolet rays emitted from a light source such as a liquid crystal display device, and the deterioration of light reflectance with time can be suppressed. 312XP/Invention Manual (Supplement)/96-04/95148364 9 1356768 As the aliphatic polyester-based resin, a chemically synthesized person, a microbial biosynthesis synthesizer, or a mixture thereof may be used. 'As a chemically synthesized aliphatic polyester-based resin', a polyhexamethylene lactone obtained by ring-opening poly* &amp; inner®, or polyadipate B obtained by polymerizing a diacid and a diol a diester, a polybutylene adipate, a polybutylene succinate, a cyclohexanedicarboxylic acid/cyclohexanedimethanol polycondensate, etc., a lactic acid polymer obtained by polymerizing a hydroxycarboxylic acid. A diol or the like, or an aliphatic polyester in which one of the above aliphatic modified polyesters is partially ester-bonded, for example, an ester bond of 50% or less is substituted with an amine bond, an ether bond, or an amine decanoate bond. Examples of the aliphatic polyester-based resin which is subjected to fermentation fermentation by a microorganism include polyhydroxybutyl ester, a copolymer of hydroxybutyl ester and hydroxypentyl ester, and the like. In the aliphatic polyester-based resin, an aliphatic polyester-based resin having a refractive index of less than 1.52 is preferably used as the base resin of the enamel layer. In other words, if a layer containing an aliphatic polyester resin having a refractive index (η) of less than 152 and a fine powder filler is used, refraction scattering at the interface between the base resin and the fine powder filler can be utilized. Achieve light reflectivity. The refraction scattering effect 'is changed as the refractive index of the base resin and the fine powder filler becomes larger. Therefore, as the base resin, it is preferable that the refractive index is small. From this point of view, the best case It is a polymer whose refractive index is less than u6 (generally about 145). The acid-based polymer 'for example, a polymer of D_lactic acid or lactic acid or a copolymer of these may be mentioned. Specific examples include poly(D-lactic acid) having a structural unit of monolactic acid, poly-α-lactic acid having a structural unit of lactic acid, and poly(DL-lactic acid) as a copolymer of lactic acid and D-lactic acid. , or a mixture of the 312XP/invention specification (supplement)/96-04/95148364 10 1356768. Lactic acid has the above two types of optical anisotropy, and the secret is only 丨L pore 骎 and D-lactic acid, and the 曰 曰 steepness differs depending on the ratio of the two structural units. For example, the ratio of D-li-acid is about 8〇: 2〇~2〇: 8〇ά士曰,)·你你规/,t物'系:S“生低, near the glass transition point Softened transparent non-completely crystalline polymer. Another ancient τ „ Λ t ^ is a 疋 疋 结 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 20 or about 20:8 〇~〇: 1 〇〇 random copolymer, the glass transfer is the same as the upper trace copolymer for about 6 generations, but the crystallinity is high. = Reverse: In the body, the ratio of the DL ratio in the lactic acid-based polymer to the lactic acid lanthanum 3 is preferably D-lactic acid: L-lactic acid WOOL; or broad lactic acid: lactic acid = 〇: (10) ~! 5 ··85. More preferably for lactic acid · ~ 5:95. .. or - Liquor acid: L-lactic acid = 0.5: 995 // The ratio of lactic acid to L-lactic acid is just: ◦ or 0: fresh milk, 糸 polymer' shows very high crystallinity, there is a bright point High, resistant to 孰 and mechanical properties are excellent. That is, when the film is stretched or subjected to a ruthenium treatment, the resin is crystallized to improve heat resistance and mechanical properties, and this is the case. On the other hand, a lactic acid-based polya complex composed of D-lactic acid and L-lactic acid is preferable because it can impart flexibility to improve molding stability and elongation stability. If the balance between the tamper resistance of the obtained light reflector and the formation stability and elongation stability is investigated, the composition ratio of j D-lactic acid to l_lactic acid is more preferably D_lactic acid 4_lactic acid = 99 5 : 〇乃~卯_ 5 or D-lactic acid: L-lactic acid = 〇 · 5 : 99. 5~5 : 95. The lactic acid-based polymer can be condensed by a polycondensation method or a ring-opening polymerization method. The 312XP/invention specification (supplement)/96_〇4/95丨48364: square D method: _ paste, followed by dehydration and polycondensation a substance or a mixture of the above, and obtains the arbitrarily as needed. Regarding the ring-opening polymerization method, it can be used as a ring of lactic acid - taking the edge; the presence of the catalyst of the dragonfly and having any The vinegar of the vinegar is subjected to ring-opening polymerization to obtain a lactic acid-based polymer having an arbitrarily composed composition. The above-mentioned lactide Yin, as a di-ester, as a D-lactic acid - Zaohong ΛΛ ▲ 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承 承L-aggregation, and by doubling the need to mix the conjugates: another lactic acid-based polymerization having an arbitrary composition and having crystallinity, or blending D-lactic acid with L-lactic acid A polymer I polymer having a different polymerization ratio. In this case, it is preferred to adjust the value obtained by averaging the copolymerization ratios of D-lactic acid and lactic acid of a plurality of lactic acid-based polymers into the range of the above-described DL ratio. Further, as the acid-based polymer, a copolymer of lactic acid and another hydroxycarboxylic acid can also be used. In this case, examples of the "other hydroxycarboxylic acid unit" to be copolymerized include glycolic acid, 3-hydroxybutyric acid, 4-hydroxybutyric acid, 2-hydroxy-n-butyric acid, and 2-hydroxy-3,3. a difunctional aliphatic hydroxycarboxylic acid such as dimercaptobutyric acid, 2-hydroxyindenyl butyric acid, 2-mercaptolactic acid, and 2-hydroxyhexanoic acid, or caprolactone, butyrolactone, and valerolactone Lactones. Further, the lactic acid-based polymer may optionally contain a non-aliphatic carboxylic acid such as terephthalic acid and/or a non-aliphatic diol of ethylene oxide adduct such as bisphenol A or lactic acid and/or Or a hydroxycarboxylic acid other than lactic acid as a small amount of 12 312XP / invention specification (supplement) / 96 · 〇 4 / 95148364 ~ t) / 68 copolymerization component. Preferably, the lactic acid-based polymer has a high molecular weight of 50,000 or more, more preferably 60,000 to 2 = 10,000 to 300,000. If the weight of the lactic acid-based polymer is as high as 50,000, the mechanical properties of the lactic acid-based polymer are not p (the micro-powder filler of the A layer), the organic fine powder,

Examples of the fine powder filler in the layer A include inorganic fine powders and the like. The organic fine powder is preferably at least one selected from the group consisting of fibers such as wood powder and paper powder, end powder, polymer beads, and polymer hollow particles. As the inorganic fine powder, it is preferred to use self-carbonic acid mother, magnesium carbonate, carbonic acid lock, magnesium sulfate, barium sulfate, sulfuric acid, oxidation, oxidation, strontium, titanium oxide, oxidation! At least one selected from the group consisting of S, hydrogen peroxide, _grey stone, smectite mica, talc, clay, clay, glass powder, asbestos powder, zeolite, and lime white clay. &gt; . Further, t is preferably a fine powder filler having a large refractive index difference from the aliphatic polyester-based resin and having excellent reflection properties. From this point of view, it is preferable to use a refractive index having a large refractive index. Inorganic fine powder and the like. Specifically, it is preferably calcium carbonate, barium sulfate, titanium oxide or zinc oxide having a refractive index of 1.6 or more, and particularly preferably titanium oxide having a refractive index of 2.5 or more. Further, in consideration of • long-term durability, barium sulfate which is stable to acid or alkali is also preferable. Since the refractive index of titanium oxide is significantly higher than that of other inorganic fine powders, and the refractive index difference from the aliphatic polyester resin is particularly large, it can be used in other than 312XP/invention specification (supplement)/96_〇4/95148364 13 1356768 The addition of less charge imparts high reflectivity and low light transmission to the reflector. Further, by using titanium oxide, the light reflector having a small thickness of the light reflector but having high reflection performance and low light transmittance can be obtained. As the titanium oxide, a crystalline titanium oxide such as an anatase type or a rutile type is preferable. From the viewpoint of a large difference in refractive index from the base resin, titanium oxide having a refractive index of 2.7 or more is preferably used. In this respect, it is more preferable to use titanium oxide having a rutile crystal form. The larger the refractive index difference, the greater the refractive scattering effect of light at the interface between the basic resin and the titanium oxide, and the light reflectivity can be easily imparted. Further, in terms of imparting high light reflectivity, titanium oxide having a small light absorbing ability to visible light is preferable. In order to reduce the light absorbing ability of titanium oxide, it is preferable that the amount of the coloring element contained in the titanium oxide is small. From the viewpoint of this, it is preferred to use titanium oxide having a cerium content of 5 〇〇 ppm or less.氧化钛 The titanium oxide produced by the gasification process has a high purity, so that titanium oxide having a cerium content of 500 ppm or less can be obtained according to the production method. In the φ gasification process, the rutile ore with titanium oxide as a main component is reacted with chlorine gas to form titanium tetrachloride, and the titanium tetrachloride is burned with oxygen. And obtain high-purity titanium oxide. Further, the titanium oxide used as the fine powder filler is preferably one in which the surface is treated with an inert inorganic oxide. The surface of the titanium oxide can be treated with an inert inorganic oxide to suppress the photocatalytic activity of the titanium oxide and improve the light resistance (durability in receiving light). As an inert inorganic oxide used in the coating treatment of titanium oxide, 312XP/invention specification (supplement)/96-04/ selected from the group consisting of niobium oxide, sulphur dioxide and cerium oxide. 95148364 14 、, the right kind of cold, the inert matter, the machine, the medium, the cold, the gt, the genus is not damaged by the oxidized coating of the titanium oxide, and the light resistance is further improved. The best thing is that the combination is combined with 2m. Further, a compound, wherein a particularly preferable combination of inert inorganic oxides (for example, oxygen: and: two: /r and other inert inorganic oxygen coatings; oxidation error) is used for the leakage compound

, ^ For the dispersibility of the basic resin, can also be selected for the oxidized surface of the money coupling:::::: alcohol: diol, etc. _... species: "~1 Am, added titanium oxide The average particle diameter is preferably 〇. More preferably 0. 2 # m~〇. 5 ym. If the oxidation is averaged as G1 (4) The dispersibility of the aliphatic poly/ring resin becomes good. In addition, if the flat diameter is 1 &quot;, the interface between the aliphatic polyg-type resin and the titanium oxide can be formed more densely, so that excellent light reflectivity can be imparted. In the case of a fine powder filler other than titanium oxide, in order to improve the dispersibility to the base resin, a lanthanoid compound, a polyol compound, an amine compound, a fatty acid, a fatty acid ester, or the like may be subjected to surface treatment. The size of the fine powder filler other than titanium is preferably 0. 05 /Z m 15 to m, wherein, more preferably, 〇j is above or below 10 /zm. When the average particle diameter of the powder filler is 〇.^ //m or more, light scattering is generated as the rough surface is formed, and the obtained The reflection directivity becomes smaller. Further, if the average particle size 312XP/invention specification (supplement)/96·〇4/95148364 15 !356768 of the fine powder filler is 15 #m or less, it can be formed more densely. Since the interface between the aliphatic polyester-based resin and the fine powder filler can provide excellent light reflectivity. It is preferable to disperse any of the fine powder fillers other than titanium oxide or titanium oxide. In the case of the aliphatic polyester resin, the content of the fine powder filler is preferably 1 to 6 enamel 1 of the resin composition A constituting the layer A in view of light reflectivity, mechanical properties, productivity, and the like. %, particularly preferably 10 to 55 mass%, more preferably 2 to 45 mass%. • If the content of the fine powder filler is 10% by mass or more, the basic resin and the fine powder filler can be sufficiently ensured. The interface area can provide a higher light reflectivity. When the content of the fine powder filler is 6% by mass or less, the mechanical properties necessary for the film can be ensured. (Other components in layer A) Resin composition A, can also interfere with aliphatic polyester resin and micronized filler Other energy or other additives may be included in the range. For example, anti-hydrolysis agents, antioxidants, light stabilizers, thermal stabilizers, lubricants, dispersants, UV absorbers, white pigments, fluorescent materials and others may be added. Additives (Internal voids) Further, the tantalum layer may have voids, and the reflectance may be further increased by having voids. The void ratio of the A layer (the proportion of the voids in the A layer) is preferably 50% or less. In the range of the reflectance, the porosity is 20% or more, and particularly preferably 30% or more. If the void ratio exceeds 5n', the mechanical strength may be lowered or the heat resistance may be used. 312 ΧΡ / invention manual (supplement V96-04/95148364,, 16 and other durability is insufficient. The void in the layer A described above can be formed by adding a fine powder filler to the resin composition A to form a film of 4 and extending it. When the content of cerium is 5° 0 ppm, it is also possible to use 铌 i i. Even if the void ratio existing in the interior is low or there is no void, the following effects can be obtained. That is, in the case where titanium oxide having a value of 500 Å or less is used, the filler can be reduced.

As a result, the number of voids formed by the extension is also small, so that it is also possible to maintain high reflection performance while improving mechanical properties. Further, it is also possible to reduce the number of voids existing in the interior to improve the dimensional stability. Further, even if it is a thin type, high reflection performance can be ensured, and it can be suitably used as, for example, a light reflector of a backlight device for a small or thin liquid crystal display such as a pen, a microphone, or a mobile phone. (Static friction coefficient and dynamic friction coefficient of the surface of layer A) t /, a layer composed of the resin composition A having the above composition, a film formed by the tree Lu month a, and the product A is laminated on the metal plate Alternatively, the ruthenium film of the metal plate is formed as a film-like layer, and in this case, 'the important thing in the light reflector is ''the static friction coefficient and the dynamic friction coefficient of the surface of the A layer are adjusted to a predetermined range. The static friction coefficient of the surface of the layer A of at least one side (preferably the surface of the layer A on both sides) of the desired 疋' is at least 0.49, and the coefficient of dynamic friction is 0.42 or less. The static friction coefficient of the surface of the A layer on the right side is 0.49 or less, and the dynamic friction coefficient is 〇·42 or less, for example, when the light reflector 312XP/invention specification (supplement)/96 951 951 Private 17 1356768 is a reflector and is installed in a notebook LCD device to effectively reduce noise when switching the monitor. The surface of the ruthenium layer, which is at least - the side (preferably the surface of the two sides), preferably has a static friction coefficient of 〇 46 or less. Further, the rubbing coefficient is preferably 〇. 36 or less. For the = the static friction coefficient of the surface of the A layer and the dynamic friction wire are adjusted to a predetermined range, and the coating liquid mixed with the friction modifier in the friction modifier can be applied to the surface of the layer A (four) / Ge will be 3 8 The friction modifier may, for example, be a surfactant having a lipophilic portion of the hydrophilic portion 7 in the molecule or a component thereof. The surfactant is preferably classified into a cationic system, an anionic system, a cone ionized system, and a nonionic system. The use of T is classified according to a processing method or use. The 'anionic surfactant is used or As the main component, and the versatility is better in terms of the balance between effect and economy. Representatives ::::. Fatty acid salts, 2) higher alcohol sulfates, 3) liquid fats, fatty oils, sulfates, 4) aliphatic amines and fatty amines, 5) aliphatic alcohols, salts, 6) a dibasic fatty acid ester salt, 7) a fatty acid, a guanamine salt, 8) a aryl aryl salt, 9) a methyl sulfate, and the like. Further, examples of the cation system which is poor in heat resistance and high in cost but high in antistatic property include hydrazine aliphatic amine salts, 2) quaternary calcium salts, and 3). As a zwitterionic system which slightly improves the heat resistance of the anion weak point, 1) (4) Lin derivatives, 2) slow acid acid, 3) sulfuric acid vinegar 312 ΧΡ / invention manual (supplement) ) /96-04/95148364 1356768 Recording, 4) ammonium phosphate, 5) ammonium sulfonate. Further, the friction modifier may contain an anthrone or an anthrone-containing tree raft, the friction modifier, and the surface of the ruthenium layer may be immersed in a liquid containing a friction-adjusting solution to coat a liquid containing a friction modifier. The composition was mixed in the resin composition A on the surface of the Aa crucible or by first mixing the friction modifier. Second main A layer table

When the friction modifier is kneaded in the resin composition A, the yield of the A refiner is preferably 0.001 to 2% by mass, and more: • 5% by mass. When it is in the range of 〇.001 to 2% by mass, a light reflector having good smoothness can be obtained in the case of harmful reflection performance.贝, (Metal plate) As a type of liquid crystal display device that constitutes the light-reflecting (four) metal plate, the money is more than a reflector, etc., such as 使 谇 谇 η π 寻 寻 寻 寻 , , , , , , , , , , , , , The thickness is 〇.〇5mm~〇4fflm which is not recorded, the thickness is &quot;~1 /7^ alloy, or the thickness is 〇.2~〇.4 mm yellow steel plate. ; and 'metal plates are not limited to these. In order to improve the adhesion or adhesion of the light reflecting plate, it is preferred to subject the surface of the laminated light reflecting plate to a surface treatment. For the surface treatment, chemical treatment or discharge treatment may be mentioned. As the chemical unit and the electromagnetic ^ ^ τφ ^ ^, the treatment methods such as sputum coupling agent treatment, acid treatment, alkali treatment, skunk step decoration α^ oxygen treatment, and ion treatment are listed. As the discharge treatment, for example, the power supply "", the discharge treatment...", the glow discharge treatment of the Christchurch, the arc lamp, and the treatment can be performed as the electromagnetic wave irradiation 312XP/invention specification (supplement)/96 ·〇4/95148364 Lifting and external treatment of rabbits: 1-ray treatment, r-ray treatment, Ray 19 1356768 radiation treatment, etc. Among them, especially good for decane coupling agent treatment and corona discharge treatment' is due to the treatment of decane coupling agent. The effect of improving the adhesion between the inorganic material (metal plate) and the organic material (containing the fine powder polyester layer) is high. Further, the corona discharge treatment can effectively improve the adhesion at atmospheric pressure. &lt;C layer> + the light reflector _, for example The film may be formed of a resin composition, and the film may be thermally fused on the metal plate, or the resin composition may be melted, extruded onto a metal plate to form a film, and the layer A may be directly laminated on the metal plate. The layer C is interposed between the layer A and the metal plate. The layer C can be formed, for example, by a thin enamel, and the film is composed of a polyester resin. As a specific example of a film composed of a g-based resin, for example, By aromatic a film composed of an ester resin, an aliphatic polyester resin or a copolymerized polyfluorene tree. If a film composed of the polyester resin is used as the C layer, it is present between the layer a and the metal plate. In the case of the above-mentioned aromatic polyester-based resin, polyethylene terephthalate may be mentioned, and the layer may be laminated at a low temperature without impairing the function of light reflectivity of the layer A. Poly(m-phenylene terephthalate), polybutylene terephthalate, poly(paraphenylene) (1, 4-cyclohexylenedi-f-) vinegar, poly 26-cai dicarboxylic acid An aromatic polyester resin such as ethylene naphthalate. = The above-mentioned Japanese-Japanese aliphatic poly-glycol resin can be obtained by using the chemical-based polyacetal resin exemplified above and the fat synthesized by microbial inactivation. Recorded from lanthanide resin, and mixtures of these. 312XP/Invention Manual (Supplement)/96-04/95148364 20 丄:&gt;:)〇/〇« From: Description of copolymerized polyester resin, The repeating unit of the ester is composed of one 籀 兀 兀 兀 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 一种 一种 一种 一种Copolymerized polyester saplings 盥 盥 盥 盥 盥 盥 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰 曰曰系树曰, the acid component is selected from the group consisting of benzoic acid, hexanoic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and succinic acid. More than two kinds, polyol ^ from ethylene diethylene glycol, triethylene glycol,! Further, two or more selected from the group consisting of 4-cyclohexanedimethanol, 1 Λ, ^, monobutylene glycol, 1,5-pentanediol, and 6-hexanediol. Japanese monocarboxylic acid, terephthalic acid, naphthoic acid, oxalic acid, succinic acid, preferably containing: an acid component is isophthalic acid, a terephthalic acid I, a vinyl alcohol glycol, a hydrazine a copolymer of 4_cyclohexanedimethanol. The aromatic polyester-based resin, the aliphatic polyester #-based resin or the copolymerized polyester-based resin which is a basic resin of the C layer is not limited to the above-mentioned examples. Among the above, particularly preferred are polyethylene terephthalate, poly-m-decanoic acid, ethyl vinegar, and lactic acid-based polymers. The polyester resin constituting the C layer preferably has a sleek point of 8 〇 to 2 7 。. The resin in the range of ' is preferably 150 Ϊ 25 to 25 (the resin in the TC range. If the melting point is 80 ° C to 27 ° ° C ', the adhesion to the metal plate can be sufficiently ensured without using an adhesive, and the laminate can be suppressed. The thermal influence on the metal plate prevents the reflection performance of the light reflection plate from being lowered. Further, the term "melting point" as used herein is a value measured by differential scanning calorimetry (DSC). 312XP/Invention Manual (Supplement)/96 · 04/95148364 21 1356768 The layered polyester resin, preferably the heat of fusion is less than that of the A layer, which is the heat of the enemy. If the α• resin is married, Low, then άτ g this 5g • Therefore can get two: J low temperature T layer A layer and metal plate, .1 hunt t layer and metal plate separated by C layer to improve the adhesion of each layer, and provide light reflector Mechanical strength: When the lactic acid-based polymer is used as the heat-dissipating heat of the poly-based resin or acid-based polymer constituting the C-layer, it is preferably smaller than the heat of fusion of the layer-based aliphatic polyester resin. "Lactic acid-based polymer" and the composition ratio of D-lactic acid to L-lactic acid | mt: it can make (four) n off, the melting point The lactic acid-based polymer is composed of D-lactic acid and L-lactic acid, and is preferably a lactic acid-based polymer, which is preferably a lactic acid-based polymer. 'The viewpoint that the heat of fusion is also low. 'The heat of fusion referred to here is the value measured by differential scanning calorimetry (DSC). (Other components in layer C) θ ' can also be used for the above polyester. The range of effects of the resin: 丨 has components other than the above. For example, it may contain a micronized filler, a moisturizer, an anti-hydrolysis agent, an antioxidant, a light (4), a heat (4), a dispersion::, an ultraviolet ray Absorbent, white pigment, fluorescent whitening agent, and other additives. For example, if the C layer contains the fine powder filler described in the layer, it can also self-structure the a (C) layer of poly(tetra) resin and fine powder. Refractive scatter caused by the refractive index difference of the filler to obtain the reflection performance, which can further improve the light reflection 312XP / invention specification (supplement) / 96-04 / 95148364 - the reflection performance of the body. Lubricant, as well as the adhesion between the C layer and the metal plate, step by step to improve the A layer, The inter-layer C agent uses a so-called internal lubricant and an external anti-slip agent. 夺润# _ ^糸润β剂, alcohol-based lubricant, aliphatic amide-based lubricant, ester-based lubricant 笙Μ. _ , Internal lubricant, or acrylic lubrication. P / 闰 π agent 'preferably add acrylic sizing agent. Can also be combined with the exemplified lubrication 2 j j 3 ' relative to i 〇〇 mass The aliphatic group constituting the C layer is preferably: ', resin' is preferably 0.05 to 10 parts by mass, more preferably 0.1 part by mass or more or less by 5 parts by mass. (Composition of layer c) C layer may be formed as A layer composed of three or more layers of different layers: by forming the C layer into a multilayer structure, the adhesion between the A layer and the C layer, the lamination condition, and the like, and the density between the c layer and the metal plate can be appropriately adjusted. The adhesion, the reflection performance, the mechanical strength, and the like as a whole of the light reflector can be designed in a preferable range. • In addition, the C layer can also have a gap inside. When the void is provided, the reflection performance can be obtained by the refractive scattering caused by the difference in refractive index between the polyester resin constituting the C layer and the void (air), and the reflection performance of the light reflector can be further improved. ° <Structure of Light Reflector> As described above, the light reflector can be laminated directly on the metal plate. 2] 2XP/Invention Manual (Supplement)/96·〇4/95丨48364 23 One or both sides And the composition is composed of layers. Therefore, for example, it is possible to form a fish plate/layer A composed of an A layer/a metal cylinder/A &amp; Or A layer / C layer / 3 layers of the eyebrows, composed of 1 layer / metal plate ^ AP / C μ4 曰 metal plate / A layer of the formation of 4 layers, by: layer: layer /Metal plate/. The layer/, layer or layer 5 is composed of layers of layers other than .θ and c. In the above composition, the thicker households of each of the Α layers, 舫社 or u,,,,.a, and degrees, preferably 50 to 250, particularly preferably 50 /z m~1〇〇 # m. The thickness of the C layer is preferably 5 (four) to (10) (four), and particularly preferably 20 // m. The thickness of the entire reflector first is different depending on the intended use or the metal plate used, and *, if considering the use of a reflector mounted in a small or thin display device, Good for 〇〇 5 ～ 1 mm, which is better for 〇”mm~〇7 stuffing. <Characteristics of Light Reflector> Lu (reflectance) The reflection of the light from the wavelength of 550 nm on the S-light reflector is measured using the surface side, and the reflectance is preferably 95% or more, more preferably 97% or more. When the reflectance is 95% or more, good reflection characteristics can be exhibited, and the surface of the liquid crystal display or the like can be made sufficiently bright. (Thermal characteristics) The thermal characteristics of the A layer and the C layer constituting the light reflecting plate are preferably 1% by weight or less, more preferably 5% or less, when placed at 120 C for 5 minutes. 312XP/Invention Manual (supplement)/96-04/95148364 24 1356768 = 'When installed as a car navigation system for a car or a reflector for a car, if heat is taken into consideration in the summer, the heat is required to be heated. The dimensions of the environment are as described above. If the heat is placed at (10) for 5 minutes, the shrinkage is reduced to 2, ensuring that the dimensional stability of the A and C layers can be maintained without metal. The plate is peeled off, so it is preferred. Also <Use> The light reflector 'has high reflectivity and high tamper resistance as described above, so it can be used not only as a display for computers or televisions, but also as a reflector for daylighting, etc. A member called a reflector formed by processing a light reflector. <Manufacturing Method> Hereinafter, an example of the method for producing the light reflector will be described. However, the method for producing the light reflector of the present invention is not limited to the following production method. The light reflecting plate may also be formed by: melting the resin to form the object A, directly forming a film on the metal plate, or applying a layer of the c layer on the metal plate, and The film on the enamel layer is formed by marshalling, and the composition A is applied as needed, and the layer A is formed into a film shape, and the layer A and the layer c are respectively formed into a film. A method of laminating on a metal plate will be described. In the case of the A layer, for example, an aliphatic polyester resin, a fine powder filler, a rubbing catalyst, and other components as needed are mixed to obtain a resin composition A′, and the film is melted and formed as needed. The film Α can be obtained. The details will be described below. 312ΧΡ/Invention Manual (Supplement)/96-04/95148364 25 1356768 First, add a micro-powder filler, an optional anti-hydrolysis agent, etc., to an aliphatic poly-resin resin to prepare a resin. Composition A. And

When a kneading friction modifier is used, a feed conditioner is added here. In the form of a blender (ribbon, Tumbler, Henschel mixer) After mixing Hens_nuxer), use 'Banbury mixer, single-axis or twin-axis extruder^' to obtain the temperature above the tree secret point (for example, when the ❹(四)W compound is 170C~23(TC) Resin site A. Further, the resin composition A can be obtained by adding a predetermined amount of an aliphatic polyester resin, a fine powder filler, a friction modifier, a hydrolysis inhibitor, or the like to a different feeder. It is also possible to add a fine powder filling in advance at a high concentration: the anti-hydrolysis agent is equal to the aliphatic polyester resin, and a so-called masterbatch (_r batch) is prepared, and the masterbatch is mixed with an aliphatic polyester resin. g "Chen's resin composition A. _Continue ^ ' (4), such as the acquisition of the remaining silk A, to form a film a. For example, dry resin composition A, supplied to the extruder, heated to the resin. Above the melting point Melting is carried out. At this time, the resin composition A may not be dried and supplied to the extruder' However, it is preferable to use a vacuum vent in the case of melt-extrusion in the case of a dry trade. The conditions such as the extrusion temperature must be considered in consideration of the molecular weight decrease due to the sub-(4), etc. In the case where a lactic acid-based polymer is used as the aliphatic polyester-based resin, it is preferably 17 Å. 〇 23 〇 的 〇 〇 〇 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312 312丄 ( () 768 Further 'the smelted resin composition A is sputtered out from the slit of the τ die. The f is extruded' on the chill roll and cured to form a cast sheet (unstretched state). Film A is obtained. On the other hand, when a coating type friction modifier is used, a water-soluble coating liquid containing a friction modifier may be applied to the film A. As a coating method, a spray method may be used (spray c 〇at), air knife method • (air~knife), reverse coat method, kiss coat, gravure coating method (gravure r〇uc〇ater), metal rod method (metalling bar), rolling brushing method (r〇11 brush), dip coating method, calender coating method Calendar c〇at), skis coating, fountain coating, etc. For example, in the case of an unstretched film, it can be formed by using a T-die extrusion machine. The aqueous coating liquid is applied to the unstretched film, and dried in a drying oven. The film can be directly blown. The film A (casting sheet) obtained as described above can be extended at least 1.1 times in the uniaxial direction. The above may form a void in which a micronized filler is used as a core in the film to form an interface between the resin and the void, and an interface between the void and the fine powder filler, and increase the refraction at the interface. The effect of scattering 'so' can further increase the light reflectivity of layer A. Preferably, the elongation temperature at the time of stretching is set in the glass transition temperature (Tg) of the aliphatic polyester-based resin to a predetermined temperature range (Tg to Tg + 5 〇), for example, in the case of a lactic acid-based polymer. Preferably, it is 5 〇 to g (rc.) If the extension temperature is in this range, the elongation can be stably performed without breaking, and the extension alignment becomes high, and as a result, the void ratio becomes large, = 312XP / invention Instruction manual (supplement)/96-04/95148364 27 1356768 It is easy to obtain the A layer with south reflectivity. For uniaxial extension, it is better to carry out material extension. It is possible to perform two-axis (four), line rate advancement-step The height is increased, (10) = shot = the order of extension of the double-sided extension is not particularly limited. For example, two-fold extension of the two-axis extension can also be performed successively. The words can be extended by using the extension #', and then extended. After 'with a tenter... Stretching, biaxial extension can be carried out by tubular extension, etc. Extension means, extension temperature, and shape of the article for uniaxial or biaxial extension =: = upper 乍 ^ area magnification It is better to extend more than 5 times, and it is better to extend it to Γ/中When the actual accumulation rate is 5 times or more, the method of extending the prayer sheet is achieved, and the void ratio of 5% or more is achieved in the caution 35, and the void ratio of 20% or more can be achieved by stretching, and can be achieved by pulling the nail/fold or more (10). Jia A gives heat resistance and dimensional stability, compared to = layer = processing temperature, preferably (10) ~ war, more preferably clock. The processing time required for processing is preferably 1 second ~ 5 minutes after stretching There is no particular limitation on the equipment, etc. It is preferable to carry out the tenter extension of the heat-fixing treatment. The system:: The film A produced on the second layer contains the phase B of the polyacetate which constitutes the C layer, The method of laminating on a metal plate as a method at this time is exemplified by a gold layer film __specification (supplement)/96 gram 51 Wei 2g 1356768 B, a thin 臈A ', and is supplied in this state to be heated and pressurized. The method of heat-melting. The temperature at which the heat is melted is preferably from the viewpoint of the adhesion force, and is preferably in the range of 140 ° C to 280 ° C, more preferably ι 5 〇ΐ to 210 ° C. In addition, the surface temperature of the metal plate may be heated to the melting point of the resin constituting the A layer and the C layer by the rubber roller. [The second embodiment] φ The light reflector of the present embodiment (referred to as "the light reflector") is an aliphatic polyester resin on one side or two areas of a metal plate. And a layer A as a main component of the micro-powder filler, and a b-layer formed of a thermosetting resin or an epi-radiation-hardening resin on the surface side of at least one of the layers, the static friction coefficient of the surface of the B layer And the light reflector formed by the dynamic friction coefficient being in a predetermined range. Further, the layer A may be provided on one side or both sides of the metal plate, so that for example, a layer c may exist between the metal plate and the layer A. Embodiment t, A layer, metal plate and c layer and the first! The embodiment is the same as described above. Therefore, only the #B layer will be described. Hereinafter, the configuration, characteristics, and manufacturing method of the light reflector will be described. &lt;B layer> The B layer may be formed of a thermosetting resin or an epitaxial radiation-curable resin. Among them, in terms of handling environment and productivity, it is preferably formed by a free-radical curing resin. The above-mentioned free radiation curable resin may be a resin which is hardened by irradiation with free radiation such as ultraviolet rays or electron beams. For example, collateral (four) # contains 312XP / invention specification (supplement) / 96-04/95148364 90 1356768 irradiated molecules with at least one polymerizable cross-linking reaction of two: pre-polymer of double bond: In the case of a dendrimer or a rabbit external hardening type resin obtained by an oligomer and/or a monomer, a photopolymerization initiator is usually contained. The anti-bifluorene radiation-curable resin may also contain additives such as a sensitizer, a non-resin, a leveling agent, and a solvent as needed. Further, it may contain a stone oil or a resin containing an anthrone. The above prepolymers and oligomers include polyester acrylate and propylene.

Acryl-formic acid (10), epoxy propylene, poly-acrylic acid acrylate, polyacrylic acid vinegar, and fluorenone acrylic acid, such as propylene, polyester methacrylate, methacrylic acid amino acid f acid vinegar, Methyl acrylate such as epoxy methacrylate, polyether methacrylate 'polyol methacrylate, and anthrone fluorenyl acrylate. The refractive index of the layer B is not particularly limited. In order not to impair the high reflection performance, the refractive index is selected to be about 44 to 丨8, and preferably a resin of about 14 to 1·β is used to form the b layer. Further, the ruthenium layer may contain a particulate filler. As the particulate filler, the same as the particulate filler in the above-mentioned ruthenium layer can be used, and it is considered that the curability of the layer B, the adhesion to the layer a, the reflection property of the light reflector, and the like are not impaired. Further, when the static friction coefficient and the dynamic friction coefficient of the surface of the layer B are set to a predetermined range, it is preferable that the average particle diameter is a particulate filler of 〇3 or less, and particularly preferably cerium oxide of 〇.2 or less. (The static friction coefficient and the dynamic friction coefficient of the surface of the layer B). Preferably, the static friction coefficient of the surface of the layer B is 〇49 or less, and the dynamic friction coefficient is 0.42 or less. 312XP/Invention Manual (Repair)/96-04/95148364 ^56768 If the static friction coefficient of the surface of layer B is 〇·49 or less, and the coefficient of dynamic friction is 〇. 42 or less, for example, the reflector is processed into a reflector. And installed in the case of the liquid crystal display of the pen 5 type computer, can effectively reduce the generation of noise when the switch display. From this point of view, the static friction coefficient of the surface of the layer B is preferably 0.46 - or less, more preferably 0.43 or less. Further, the coefficient of dynamic friction is preferably 〇36 - or less, more preferably 0.33 or less. Lu <Configuration of Light Reflector> The light reflector may be formed by laminating A layer on one surface or both surfaces of a metal plate, or may be formed by interposing a layer C between the A layer and the metal plate. Thus, for example, it can be formed into three layers composed of a B layer/A layer/a metal plate, and is composed of a B layer/A layer/a metal plate layer, or a 3 layer/person layer/(: layer/metal plate). It consists of 4 layers, consisting of B layer/A layer/C layer/metal plate/A layer, composed of 5 layers, B layer/A layer/C layer/metal plate/A layer/8 layer, B layer/A Layer / c layer / metal plate / C layer / A layer, or B layer / A layer / C layer / metal plate / C layer / A • layer / B layer or more of the above layers. ^ Also 'can also be formed with Further, the layers of the layers other than the B layer and the c layer (the subsequent layer, etc.) are formed. Further, the order in which the layers are formed is not particularly limited. For example, the layer A may be formed into a layer B and the layer may be laminated with a metal layer. After the accumulation, layer B is layered on the surface side of the η layer. 4 In the above composition of the metal plate, the thickness of the layer is preferably 50 //m to 250 /zm. 7 The thickness of the β layer is preferably 〜10&quot;m More preferably 1/zm 7 em, especially good 2 #m~5 #m. 312XP/invention manual (supplement)/96·_4_

/{JO Further, the thickness of the C layer is preferably 5 centimeters to (10) (4). Also, it is different as a metal plate for the overall thickness of the light reflector, and the thief is different depending on the intended use or the thin reflection (four). However, 'the test is used as a small size, and the medium is better as the shot body' is preferably 〇.05 咖 〜 I 丽, the <reflective characteristic of the light reflecting plate> The reflectance of the light reflecting plate from the self-aligning wavelength 550 is better. For more than 95%, it is better to use the surface side to measure more than 97%. If the reflective car* exhibits good reflection characteristics, the liquid crystal display Μ the picture is sufficiently bright. <Applications> 'The light reflector has both the above-mentioned high-reflection performance and high heat resistance. Therefore, it can be suitably used not only as a display for computers or televisions, but also as a reflector for lighting fixtures and illuminations. A member called a reflector is formed by processing a light reflector. Lu <Manufacturing Method> Hereinafter, an example of a method for producing a light reflector will be described. However, the method for producing the light reflector of the present invention is not limited to the following manufacturing method. In the same manner as in the first embodiment, the film reflector can be prepared in the same manner as in the first embodiment, and then a coating liquid of a thermosetting resin or a free radiation curable resin can be prepared and applied to the film A to dry and remove the solvent. Heating or exposure to free radiation causes it to harden to form a layer B. Further, the film a which forms the B layer may be a film which is not stretched or heat-treated, preferably a film which is stretched and further heat-treated. Specifically, 312XP/Invention Manual (Supplement)/96-04/95148364 32 1356768 In the case where a B layer is formed on the film A by coating, it can be carried out on the film A which is stretched or heat-treated. a method of encapsulation coating, or may be employed in a step of casting a film in an unextended state, in which a layer B is applied inline, and thereafter, a method of stretching or heat treatment (so-called in-line coating) cloth). 'Applicator method as a thermosetting resin or an ionizing radiation hardening resin' can be, for example, a bar coater, a blater coater, a roll coater (r〇H) A well-known coater such as a coater, a gravure coater, or a spin coater, and a well-known coater or spray coating. It is formed by coating by a coating method. Further, the layer B may be formed by a well-known printing method such as gravure printing, offset printing, or screen printing. Further, when the ? layer is formed on the layer A, the surface of the tantalum layer can be improved by surface treatment means such as corona discharge treatment (the same method as the surface treatment of the above metal plate can be used). Further, a thickening coating layer and a reflector may be present between the two layers, and then the film A having the B layer prepared as described above may be laminated on the metal plate to form the film through the film c containing the polyester resin constituting the C layer. The film is laminated on a metal plate in this order and supplied to the heating and pressing roller in this state as a lamination method at this time, and C has a thin layer a of the B layer, and is subjected to a heat fusion method. To carry out the temperature of the hot material, the side of the adhesion is "speak, preferably in the 312XP / invention manual (supplement) / 96-04/95148364 33 1356768

150 ° C ~ 210 ° C 140 C ~ 280 C temperature range, more preferably the temperature range. The surface temperature of the metal plate may be heated to the melting point of the resin constituting the a layer and the c sound, and heat-melted by a rubber roller. [Embodiment] Hereinafter, the present invention will be more specifically described based on an example and a comparative example: surgery =:: is not limited to the embodiment, and can be variously included in the scope of the technical idea of the present month. application. Further, the measured values and evaluations shown in the examples were carried out as follows. Further, the direction of the stretching (flow) direction of the film is set to TD.村八正乂 <Measurement and evaluation method> (1) Static friction coefficient. Dynamic friction coefficient

Based on JIS Κ 7125, coefficient of friction. At this time, the static friction coefficient and the motion = 5 of the surface of the ruthenium layer were measured by η (2) adhesion, and the average value thereof was shown in Table B. (4) Using Ezsen's Ericsen tester (Erichsen tester) The method of confirming whether or not the film was peeled off from the metal thin plate at the time of extrusion of 4 mm was visually observed, and the film peeling was not confirmed as ◦, and it was judged as Δ when there was no problem in use, and it was confirmed that the thin peeler was judged as X. The meter (m, manufactured by Hitachi, Ltd.) is installed, :=: the reflectance of the light of 550 (10) is fixed, and the one who has not confirmed the decrease of the reflectance is judged as 〇, and there is no problem in practical use (not full-〇 5%) 312XP / invention (supplement) / 96 〇 4 / 95148364 34 / 06 ^ For Π to confirm the reflectance reduction (more than _Q5%) 敎 is X. Then 100% J ^ does not determine the photometer 'to make the oxidation of 18 whiteboard reflectivity (4) noise evaluation: light reflector processing 4 17 inches notebook computer with actual notebook personal life 俨rpr, niece Among people, the sound of the switch is evaluated. 〇 不 不 不 不 不 不 不 不 △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ △ 3 g of the sample was filled in a test cylinder having a sectional area of 2 cm 2 and a height of 1 (10). The average particle diameter was calculated from the passage of 20 cc of air in a 500 mm water column. (6) Antimony concentration (ppm) in titanium oxide The antimony content was determined in JISM-8321 "Titanium Ore - 铌 Quantitative Method". _ Weigh 0. 5 g sample, transfer the sample to the recording (4) with 5 g of melted H-sodium oxide: sodium peroxide = 1: 2 (mass ratio), and carry out the combination. The surface of the sample was covered with 2 g of anhydrous sodium carbonate, and the sample was heated and melted in a crucible to form a melt. After the melt is placed in a state of being placed in a crucible, the mixture is cooled, and 100 ml of warm water and 50 ml of salt mash are added to the melt in a small amount each time, and melted, thereby force: water mixing And to a constant volume of 250 ml. The 卩 ICP luminescence spectrometer was used to measure the solution to determine the hydrazine content. Among them, the measurement wavelength is 309.42 nm. 312XP/Invention Manual (Supplement)/96-04/95148364 35 1356768 [Example 1], 70 parts by mass of a lactic acid-based polymer having a weight average molecular weight of 200,000 (NW4032D: manufactured by Cargi 11 Dow Polymer Co., Ltd., L body: D body. == 98.5: 1.5, glass transition temperature 65 ° C), 30 parts by mass of titanium oxide having an average particle diameter of 〇 · 25 m (rutile type, 铌 concentration 43 〇 ppm; A resin composition which is surface-treated by cerium oxide, aluminum oxide and cerium oxide, and which is prepared by a gasification process, is melted and extruded in a 245 lu extruder to be cast. After cooling, the solution of Electro Stopper-AC (trade name, Kao, composition: linear alkyl benzoic acid) as a friction modifier was applied to the casting surface so that the thickness after drying became 0.1. /zm, biaxially stretching at a temperature of 65 ° C, extending 2.5 times in MD*, and extending 2·8 times in the TD direction, and then heat-treating at 14 (TC to obtain a thickness of .7 5 // m) Washing and casting the sheet. Then, between the cast sheet and the stainless steel sheet (thickness mm, SUS3〇4), there is a mixture of benzene. A film of a formic acid-isophthalic acid polyester copolymer (copolymerized φ-PET) having a thickness of 15 nm was thermally fused at 18 (TC to obtain a light reflector having a thickness of about 190. ' The light reflector The static friction coefficient, the dynamic friction coefficient, the adhesion, the reflectance, and the noise evaluation were performed. The results are shown in Table 1. [Example 2] Rikenmrl A (product name, Riken Vitamin, composition: sucrose fatty acid vinegar) was used. In place of the implementation of the Electro stopper AC used as the friction modifier, all of them were carried out in the same manner as in the embodiment, to obtain a light reflector, and to perform a static friction coefficient, a moving friction 312XP/invention specification (repair) /96-04/95148364 36 1356768 The coefficient of rubbing, adhesion, reflectance, and noise were evaluated, and the results are shown in Table 1. [Comparative Example 1] 70 parts by mass of lactic acid having a weight average molecular weight of 200,000 The average particle size is 0. 25, the average particle size is 0. 25, the average particle size is 0. 25, the average particle size is 0. 25, the average particle size is 0. 25 // m of titanium oxide (rutile type, 鉱 430 ppm; The resin composition obtained by surface treatment of cerium oxide, aluminum oxide and zirconium oxide by a chlorination process is melted, extruded, and cooled by a casting roll in an extruder set at 220 ° C β. The coating was applied to a thickness of 75//111 at a temperature of 65 ° C. The biaxial stretching was 2.5 times in the MD at a temperature of 65 ° C. After biaxial stretching of 2.8 times on the TD, heat treatment was performed at 140 ° , to obtain a thickness of 75//111. Casting a thin plate. Then, between the cast sheet and the stainless steel sheet (thickness 0.1 mm, SUS304), the thickness of the polyester copolymer containing terephthalic acid-m-benzoic acid (copolymerized PET) is 15 /zm. The film was heat-fused at 180 ° C to obtain a light reflector having a thickness of about 19 Å #m. The static friction coefficient, the dynamic friction coefficient, the adhesion, the reflectance, and the noise were evaluated for the light reflector, and the results are shown in Table 1. [Table 1] Friction Modifier Reflectance Friction Coefficient Noise Adhesive Static Friction Coefficient Dynamic Friction Coefficient Example 1 Electro stopper AC 100.2 0.46 0. 36 〇〇 Example 2 Rikenmarl A 100.2 0.44 0. 35 〇〇 Comparative Example 1 None 100.2 0 51 0.45 X 〇 [Example 3] 70 parts by mass of a lactic acid-based polymerization 312XP/invention specification (supplement)/96-04/95148364 37 1356768 (NW4032D. Cargi 11 Dow P) 〇 lymer company, L body: D body 98 · 5 . 1. 5, glass transfer temperature), in parts by mass, ', control is 〇. 25 # m of titanium oxide (rutile type, 铌 concentration 430 The resin composition in which the ratio of ppm: • yttrium oxide is surface-treated with alumina and zirconia, and the ratio of the chlorinated coating is 2,000 Å is set to 2 2 〇. The extrusion of the crucible - the melt is melted, extruded, and cooled by a casting roll at a temperature of 65. Underarm * On the MD, the biaxial extension is 2.5 times, and after biaxial stretching of 2.8 times on the TD, heat treatment is performed at a temperature of l4 ° C to obtain a thin crucible (human layer) having a thickness of 75 claws. Then, the average particle diameter of 50 parts by mass of the 6-functional acrylate monomer and 3 parts by mass of the acrylated surface is 2 Å of cerium oxide fine particles, 5 parts by mass of the photopolymerization initiator, and 15 parts by mass. The methyl ethyl ketone mixture was applied to the side of the reflective surface of the layer A by a coating machine so that the film thickness after drying became 2 #m, and after the solvent was dried, it was irradiated with a high pressure mercury lamp at 3 〇〇mJ/cm 2 . The ultraviolet rays form a B layer. Then, between the B layer/A layer and the stainless steel plate (thickness 〇lmm, SUS3〇4), the thickness of the terephthalic acid-isophthalic acid polyester copolymer (copolymerized PET) is The film of 15 was heatd at 18 〇1 and fused 'to obtain a light reflector with a thickness of about 192 /zm. - The above-mentioned smoothness, adhesion, reflectance evaluation, and noise evaluation were performed on the light reflector. The evaluation results are shown in Table 2. [Comparative Example 2] 70 parts by mass of a lactic acid-based polymer having a weight average molecular weight of 200,000 (NW4032D: manufactured by Cargi 11 Dow Polymer Co., Ltd., l body: 9 body: 98.5: 1.5, glass transition temperature: 65 ° C) 3 〇 312 312XP / invention manual (supplement) / 96-04/95148364 38 1356768 TiO 2 25 / m titanium oxide (rutile type, sharp concentration 430 ppm; • with cerium oxide The resin composition obtained by surface treatment of alumina and cerium oxide by a chlorination process, manufactured by a process of chlorination, was melted, extruded, and cooled by a casting roll at a temperature of 65 in an extruder set to 2201. The underarm was extended by 2.5 times on the MD, and after 2.8 times of biaxial stretching on the TD, heat treatment was performed at 140 Ϊ • to obtain a film having a thickness of 75 Am (layer A). Then, on the side of the reflection layer of the layer A, the layer b of the layer b in the first embodiment is not coated between the layer A and the stainless steel sheet (thickness, yan, SUS304), and the presence of terephthalic acid- A film of 15 //m thick composed of an isophthalic acid polyester copolymer (copolymerized pET) is thermally fused at 18 (TC) to obtain a light reflector having a thickness of about 190 //m. The reflector' was subjected to the above-mentioned smoothness, adhesion, reflectance evaluation, and noise evaluation. The evaluation results are shown in Table 2. [Table 2]

Β layer friction coefficient adhesion reflectance static friction coefficient kinetic friction coefficient murmur embodiment 3 has 0.43 0. 33 ~ Ο 100.2 — , 〇 comparison example 2 no 0. 51 0.45 〇 100.2 X From Table 2 can be understood 'the surface has free The light reflector of Example 3 of the B layer composed of the radiation-curable resin can be compared with the light reflector of Comparative Example 2 having no b layer on the surface, without impairing the adhesion and the reflectance. Reduce the noise. 312XP/Invention Manual (supplement)/96·04/95148364 39

Claims (1)

Cut 6768 a —»OCT 2 7 20ίί (4) Μ 5th revision This I replaces 10, the scope of patent application · 4 埴 ' has a layer containing aliphatic polyester resin and micro-A layer on the metal plate or The two micro-powder fillers on both sides are contained in a ratio of H) Berry% to 60% by weight of the entire layer A, and the static friction coefficient of the surface of the A layer on one side of the a±v light reflector is 0. 49 1V . 4 y or less and the dynamic friction coefficient is 0. 42 Μ p 〇 The reflector ' has a layer of A containing an aliphatic polyester resin and a micro-agent: The micronized filler is contained in a ratio of 60 mils (4) to the entire A layer, and has a thermosetting resin or an radiant hardening resin on the surface of the at least one layer. The static friction coefficient of the surface of the formed B layer '豸β layer was 0.49 or less, and the dynamic friction coefficient was 0.42 or less. The light reflector of the first aspect of the invention, wherein the aliphatic polyester resin of the enamel layer is a lactic acid polymer. 4. The light reflector of claim 1 or 2, wherein the layer A contains a fine powdery filler which is titanium oxide.曰 5 · The light reflector of the first or second item of the patent application scope, wherein the fine powder filler contained in the layer a is cerium oxide having a cerium content of 5 〇〇 ppm or less. 6. The light reflector of claim 1 or 2, wherein the micro-powder filler of the eight layers is titanium oxide, and the surface thereof is covered with the composition of sulphur dioxide, oxidized and cerium oxide. At least one inert selected in the group is no 95148364 1356768 machine oxide. 7. The use of the light reflector of any one of the first to sixth aspects of the invention, wherein the light reflector is used in a backlight device for a liquid crystal display device. 95148364 41