摘要:
Disclosed is an organic dispersion comprising a flaky titanium oxide particle having a high crystallinity and high light permeability contained in an organic solvent. The dispersion can be prepared by a method comprising preparing an aqueous dispersion of a flaky titanium oxide particle containing an organic cation, centrifuging the aqueous dispersion to produce a precipitate, and adding the precipitate to an organic solvent, or a method comprising lyophilizing the aqueous dispersion to produce a lyophilized material and mixing the lyophilized material to an organic solvent. When the organic dispersion is used, it becomes possible to form a film comprising a monolayer of a titanium oxide nanosheet densely arranged therein by such a simple manner that the dispersion is coated on a base material and drying the dispersion. The film thus produced has a photocatalytic activity and a super-hydrophilic property.
摘要:
Disclosed are protective coating compositions having enhanced gloss retention properties formed by steps comprising: (i) providing one or more fluorocopolymers by copolymerization of (1) one or more hydrofluoroolefin monomer(s) selected from the group consisting of hydrofluoroethylenes, hydrofluoropropenes, hydrofluorobutenes, hydrofluoropentenes and combinations of these, (2) one or more vinyl ester monomer(s), and (3) one or more vinyl ether monomer(s), wherein at least a portion of said vinyl ether monomer is a hydroxyl group-containing vinyl ether monomer, wherein the copolymer preferably has a number average molecular weight of greater than about 10,000; (ii) providing a VOC containing carrier for said one or more fluorocopolymers; and (iii) providing a stabilizing agent comprising: a) a radical scavenger and b) an absorber of UV light; and (iv) combining said one or more fluorocopolymers with said carrier and said stabilizing agent to produce a polymeric coating composition.
摘要:
The present invention provides an anti-corrosion composition for a metal surface, especially of pre-stressing steel, the anti-corrosion composition being thixotropic and comprising an organic component which is an oil, fat or wax. The anti-corrosion composition of the invention is characterized in that it is translucent and also comprises an indicator which responds to corrosion of the metal surface by changing its absorption spectrum in the region of ultra-violet, visible or infra-red light, in particular with a colour change. Further provided in accordance with the invention are a metal structure bearing the anti-corrosion composition of the invention, an apparatus on the metal structure, and a method for checking the metal structure.
摘要:
A surface composition for reducing degradation and fading of surfaces subjected to extended periods of submersion in an aqueous liquid includes at least one clear barrier layer and at least one under layer, wherein the clear barrier layer is in use, disposed atop the under layer and in contact with the aqueous liquid whereby the clear barrier layer protects the structure and appearance of the under layer. The clear barrier layer provides structural protection against degradation from chemical attack and from fading due to UV exposure.
摘要:
Problem of the present invention is to provide a method of producing an ultraviolet protective agent composition, which has high transparency and excellent protection ability against a light of ultraviolet region of wavelengths of 200 to 420 nm, and an ultraviolet protective agent composition obtained by the production method. The present invention is a method of producing an ultraviolet protective agent composition, which comprises at least step (a) of precipitating iron oxide microparticles by mixing with a microreactor an iron oxide raw material fluid containing at least Fe 3+ ion, and an iron oxide precipitation fluid containing at least a basic substance; and step (b) of dispersing the above precipitated iron oxide microparticles in a dispersion medium to obtain iron oxide microparticle dispersion; wherein a haze value of the iron oxide microparticle dispersion is 2.0% or less, and a transmittance of the iron oxide microparticle dispersion for the light of the wavelengths of 200 to 420 nm is 2.0% or less.
摘要:
The purpose of the present invention is to provide an optical film having thermochromic properties such that the near-infrared screening factor can be adjusted in response to the temperature environment, and having low haze, and exceptional cohesion and resistance to cracking even with service for an extended period; and a method for manufacturing the same. This optical film has, on a transparent substrate, an optically functional layer containing at least a vanadium dioxide-containing powder and a binder resin, wherein the optical film is characterized in that the number-average particle diameter of all particles, including primary particles and secondary particles, of the vanadium dioxide-containing powder in the optically functional layer is less than 200 nm.
摘要:
Heat ray shielding particles are provided that are composite tungsten oxide particles having a hexagonal crystal structure represented by a general formula Li x MyWO z , wherein the element M in the general formula is one or more kinds of elements selected from alkaline earth metals and alkali metals other than lithium, 0.25 ‰¤ x ‰¤ 0.80, 0.10 ‰¤ y 0.25 ‰¤ 0.50, and 0.25 ‰¤ 0.25 ‰¤ 3.00.