A composition comprising particulate solid, an organic medium and a dispersant comprising a polyacrylic copolymer functionalized with a polyether and reacted with an aminic polybasic species.

An aqueous dispersion of octylisothiazolinone (“OIT”) has been found to be useful for delivering OIT to wood for protecting the wood from fungal discoloration. The OIT dispersion can be applied to the wood to develop a protective barrier of relatively preservative at or near the exterior surface of the wood piece.

The invention relates to a method for improving rheological properties of an aqueous pigment slurry. In the method dispersion agent is added to an aqueous phase of a slurry comprising pigment particles or to the aqueous phase into which the pigment particles are to be added. The dispersion agent comprises styrene acrylate copolymer. The invention also relates to a dispersion agent for a pigment slurry comprising a first component comprising styrene acrylate copolymer and a second component comprising a conventional dispersion agent, such as a straight-chain polyacrylate.

The present invention relates to an UV coating special for PET window film and its preparation method. A pigmented UV-curable window-film coating comprising the following components in parts by mass: UV monomer: 3-40, modified acrylate: 10-50, photoinitiator: 1-10, leveling agent: 0.4-2, pigment: 3-20, coupling agent: 0.5-1.5 and dispersant: 0.4-0.8. The pigmented window film according to the present invention has the functions of being difficult to fade, UV resistance and excellent outdoor weather-resistance as well as the functions of surface-scratch resistance. The color or hue of the pigment itself can remain unchanged for several or even a dozen years. Thus, a PET window film produced from a pigment with good weather resistance can guarantee that it will keep its original color for several to a dozen years and its performance will not be influenced by outdoor environmental factors.

A dispersion that includes at least one organic solvent; nanoparticles, wherein the nanoparticles are infrared absorptive, conductive or a both infrared absorptive and conductive; and at least one polycaprolactone-polyamine copolymer, wherein the dispersion comprises agglomerates of the nanoparticles and a majority of the agglomerates have an average diameter that are not greater than 100 nanometers. Compositions, films, articles and light control articles that utilize such dispersions are also discussed.

A nonionic surfactant composition including: a nonionic surfactant that contains a molecule having a C.sub.10-C.sub.22 alkyl group and/or alkenyl group as a hydrophobic group, a polyoxyalkylene chain as a hydrophilic group, no aromatic ring, no C.sub.9-C.sub.14 alkyl group derived from an alcohol that is produced from a higher olefin derived from a mixture of propylene and butene through an oxo process, and no C.sub.13 alkyl group derived from an alcohol that is produced from a higher olefin derived from a propylene tetramer through an oxo process. The nonionic surfactant has a hydrodynamic radius of 5.0 to 8.0 nm at 40 C. in an aqueous solution in which a nonionic surfactant concentration is 0.1 kg/L in the nonionic surfactant composition, the radius being measured by a dynamic light scattering method.

The present invention is directed to anti-fingerprint coating compositions, the coating layers and coated articles formed therefrom, the preparation methods therefor, and the uses thereof. The coating compositions and methods according to the present invention are capable of forming a coating layer with anti-fingerprint performance. The coating layer according to the present invention comprises a stationary phase impregnated with a mobile phase that can diffuse and fade fingerprints, in addition to optionally having a strong liquid repellency that minimizes the deposition of fingerprints and eases the cleaning of the coated articles.

Provided is a surfactant which has a high surface tension reducing ability and a high solubility in a liquid medium, containing a fluorine-containing copolymer containing, as essential components, a monomer having a fluoroalkyl group having 1 to 7 carbon atoms, a hydrophilic monomer, and a monomer having an ion donor group. Further provided are a coating composition, an ink composition and a photographic emulsion composition, each comprising the surfactant.

An anionic polymeric dispersant and a composition comprising inorganic particulate material and an anionic polymeric dispersant. A method of grinding a composition comprising inorganic particulate material and an anionic polymeric dispersant and a use of anionic polymeric dispersant to maintain the viscosity of a composition comprising inorganic particulate material.

Disclosed are a silica sol composition including silica, an anionic dispersant, two or more epoxy silane coupling agents, and an organic solvent, and a method for preparing the same. In the silica sol composition, a uniform surface modification of silica particles may be achieved by using an anionic dispersant and two or more epoxy silane coupling agents, and it is possible to effectively enhance the compatibility between a silica filler whose surface is modified with an epoxy group and a resin which is an underfill composition.