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:
A siloxane resin composition comprising a siloxane compound and 1-t-butoxy-2-propanol is provided as a siloxane resin composition capable of being applied onto a substrate with a level difference and good in the capability to cover the level difference of the substrate.
摘要:
It is an object of the invention to provide a chemical conversion treating agent containing no chromium and exhibiting high corrosion resistance and excellent stability.A chemical conversion treating agent comprising: zirconium; fluorine; (A) at least one compound selected from the group consisting of amino group-containing silane coupling agents, their hydrolyzed products, and their polymers; and (B) an amino group-containing water-borne phenol compound; wherein the content of zirconium in the chemical conversion treating agent is 25 to 2000 ppm on the metal equivalent basis, and the mole ratio of the contents of fluorine and zirconium satisfies the following relation: 3≦F/Zr≦6.
摘要:
It is an object of the invention to provide a chemical conversion treating agent which contains no chromium and can give good effect of chemical conversion treatment equal to or better than that of zinc phosphate treatment to all metals such as iron, zinc, aluminum and the like. The present invention provides a chemical conversion treating agent comprising zirconium, fluorine and a water-soluble epoxy compound, wherein the content of the zirconium in the chemical conversion treating agent is 20 to 10000 ppm on the metal equivalent basis, the water-soluble epoxy compound has a fundamental skeleton of bisphenol F, has an amino group and an isocyanate group, has a number-average molecular weight of 400 to 1000, and the content of the water-soluble epoxy compound in the chemical conversion treating agent is 100 to 2000 ppm in terms of the concentration of solid matters.
摘要:
A compound of the formula (V): ##STR1## wherein Ar' is a halogenated phenyl group, R is a hydrocarbon residue having a functional group at the .alpha.-carbon, R.sup.3' is an optionally substituted aliphatic or aromatic hydrocarbon residue or an optionally substituted aromatic heterocyclic group, Y and Z are, the same or different, a nitrogen atom or a methine group optionally substituted with a lower alkyl group, and (R) and (S) represent configurations, which is an optically active intermediate for production of optically active triazole compounds (I): ##STR2## wherein the symbols have the same meanings as defined above, and methods of preparing the compounds (V) and (I).
摘要:
Apparatus which finds particular application in a tuning device of the type which is tunable to different broadcast frequencies and which includes a scale provided with indicia corresponding to such broadcast frequencies and a pointer movable across the scale to indicate the particular broadcast frequency to which the tuning apparatus is tuned, the pointer being supported by a movable support which is guided by a guide shaft. A plurality of markers are slidably guided along at least one guide rail and are individually settable to desired locations adjacent the scale, thereby representing particular broadcast frequencies to which the tuning device is tunable. A key also is slidable along the guide shaft with the movable support, the key being selectively operative to engage a desired one of the markers to move the engaged marker therewith as the support is moved, whereby the marker is set to a desired position by reason of its engagement with the key. The apparatus includes a rotatable support for receiving and supporting the guide shaft, which shaft has a longitudinal groove therein for receiving a nub provided on the rotatable support. The rotatable support is, in turn, rotated in a support structure therefor by at least one finger which is in engagement with the rotatable support. An operating member, disposed remotely from the finger, is coupled to the finger by a flexible transmission means to move the finger; whereby the rotatable support is driven to rotate the guide shaft and, thus, the key to engage the latter with a desired marker.