摘要:
An ornamental article comprising a natural ornamental material such as pearl and a cured coating membrane of a composition based on organic materials which is coated on the surface of said natural ornamental material in a thickness from 0.01 .mu.m to 30 .mu.m, with improved properties such as surface luster and resistivity to scratch, light, chemicals, etc.
摘要:
The invention provides a coating material containing silica fine particles, a siloxane compound, and a curing agent and giving an even coating film in the case it is used for forming a coating film. The invention gives a siloxane-based coating material excellent in storage stability and giving high surface hardness of a coating film when the coating material is used for forming the coating film. The invention also provides an optical article excellent in anti-reflection property and scratching resistance.
摘要:
An anti-fogging coating having a good and durable anti-fogging property is prepared by coating a composition comprised of as main components, (A) a polyvinyl alcohol, (B) a crosslinking agent, (C) water and (D) a nitrogen-containing organic solvent on a substrate, and heat-curing the coated composition.
摘要:
Disclosed is an anti-fogging film having a multilayer structure comprised of at least two layers of a cured film formed on a substrate. The cured film contains as main components (A) polyvinyl alcohol and (B) at least one member selected from (a) colloidal silica having an average particle size of 5 to 200 m.mu., (b) an organic silicon compound of the formula R.sup.1 R.sup.2.sub.a SiX.sub.3-a in which R.sup.1 is an organic group having 1 to 10 carbon atoms, R.sup.2 is a hydrocarbon group having 1 to 6 carbon atoms, X is a hydrolyzable group and a is 0 or 1, and (c) a hydrolysis product of an organic silicon compound of the formula R.sup.1 R.sup.2.sub. SiX.sub.3-a in which R.sup.1, R.sup.2, X and a are as defined above, wherein the ratio S.sub.2 /S.sub.1 of the weight ratio S.sub.2 of component (A) to component (B) in the layer contiguous to the topmost surface layer to the weight ratio S.sub.1 of component (A) to component (B) in the topmost surface layer is at least 1.05.
摘要翻译:公开了一种具有多层结构的防雾膜,该多层结构由至少两层形成在基板上的固化膜构成。 固化膜含有作为主成分(A)的聚乙烯醇和(B)选自(a)平均粒径为5〜200μm的胶体二氧化硅中的至少一种,(b)式R 1 R 2 a SiX 3的有机硅化合物 -a其中R1是具有1-10个碳原子的有机基团,R2是具有1至6个碳原子的烃基,X是可水解基团,a是0或1,和(c)有机物的水解产物 其中R1,R2,X和a如上所定义的式R1R2SiX3-a的硅化合物,其中组分(A)与组分(B)的重量比S2在与最上层相邻的层中的比率S2 / S1 表层与组分(A)与组分(B)在最表面层中的重量比S1至少为1.05。
摘要:
The present invention relates to a resin composition for optical semiconductor devices, the resin composition including the following ingredients (A) to (D): (A) an epoxy resin; (B) a curing agent; (C) a polyorganosiloxane; and (D) a white pigment.
摘要:
Disclosed is an aqueous dispersion containing polysaccharide particulate gels, which is characterized by containing particulate gels substantially composed of a polysaccharide. The aqueous dispersion containing polysaccharide particulate gels is also characterized in that shapes of the particulate gels are maintained even after the particulate gels are heated for 30 minutes at 95° C. in an aqueous medium. Namely, disclosed is an aqueous dispersion containing polysaccharide particulate gels, wherein the particulate gels are composed of a polysaccharide and have shapes that can be maintained even after 30-minute heating in an aqueous medium of 95° C.
摘要:
A backlight unit (2) comprising a shallow box type case (3) having low profile sidewalls and opening upward, a light guide plate (7) in the box type case (3), and a supporting frame (11) containing optical members such as a linear light source (8) and an optical sheet (10) and securing the optical members in place by being fitted in the opening. A first engaging portion (4) is provided on the inside of the sidewall of the box type case (3) and second engaging portions (121-124) are provided on the outer surface of the sidewall of the supporting frame (11) being fitted in the upper opening of the box type case (3). A locking means (14) is attached to the second engaging portion such that the locking means (14) engages with and locks the first engaging portion when the first and second engaging portions engage with each other, thus preventing unfastening of the supporting frame. A liquid crystal display employing the backlight unit is also provided.
摘要:
While high-purity hexagonal boron nitride monocrystal (hBN) obtained by way of a high temperature/high-pressure treatment in the presence of a high-purity solvent has excellent properties in terms of far-UV luminescence characteristics, it has drawbacks including that it can be easily adversely affected by mechanical vibrations and impetus, that monocrystal shows a poor morphological retentiveness and that the luminescence characteristics fluctuate to shift the selected and set wavelength. The present invention can overcome the drawbacks of being easily affected by vibrations and showing a poor morphological retentiveness by grinding down the monocrystal obtained by a solvent/refining process into powder and applying the powder to a light emitting surface. Thus, the present invention provides crystal powder to be used for a far-UV luminescence device showing excellent luminescence characteristics that are stable and do not fluctuate.
摘要:
An object of the present invention is to provide a composition which is excellent in safety and capable of dispersing uniformly on the mucous tissue when topically administered to mammals, and an ophthalmic solution comprising the composition and capable of stabilizing the tear film and keeping the tear film on the eyeball surface smooth. In a composition comprising a polysaccharide, particularly agar, and water as essential components, an ophthalmic solution comprising the agar-containing composition of which an amount of precipitated agar after performing centrifugal separation at with 40,000 ×g is less than 65 wt % of a total agar content has an excellent tear film stabilizing effect which was proved by a test on changes of corneal surface irregularity. Therefore, the agar-containing ophthalmic solution of the present invention has the effect of stabilizing the tear film on the eyeball surface over a prolonged period of time and is usable as an artificial tear fluid.
摘要:
A liquid crystal display device is provided wherein decline of the driver IC's drive performance due to transmission of heat from the light source is prevented, and which is equipped with a light source of good luminous efficiency that can realize high brightness even when the LEDs are small-sized. Such a liquid crystal display device 1 comprises: an edge light type backlight device 2 having a light guide plate 21 and a light source 22 that is deployed close to an edge surface of said light guide plate 21; and a liquid crystal display panel 3 wherein a pair of substrates 31, 32 are deployed facing each other, a liquid crystal layer is formed between the two substrates 31, 32, and a driver IC 33 for driving the liquid crystal is mounted on one substrate 31 of said pair of substrates 31, 32. Such liquid crystal display panel 3 is placed over said backlight device 2 to form the liquid crystal display device 1, wherein said driver IC 33 is placed close to an edge other than the edge where the light source 22 of said backlight device 2 is located. Also, the light source 22 is made up of one or more LEDs.