The present invention provides polymer particles capable of being dissolved in a dissolving medium without generating an unmixed lump and capable of uniformly improving the viscosity of a composition, and a thickener using the polymer particles. The polymer particles of the present invention have a number average particle diameter of 1 to 50 .Math.m and a coefficient of variation in a number-based particle size distribution of 30% or more, wherein where the weight average molecular weight of the whole polymer particles is defined as A, the weight average molecular weight of small particles having a cumulative number percentage of 5% or less counted from the smaller diameter side in the number-based particle size distribution of the polymer particles is defined as B, and the weight average molecular weight of large particles having a particle diameter of 5 times or more the number average particle diameter of the polymer particles is defined as C, polymer particles satisfy the following formulas (1) and (2).

[00001]$0.90\le \left(\text{B}/\text{A}\right)<1.0$

[00002]$\left(\text{C}/\text{B}\right)<1.25$

A method for producing a hollow fine particulate containing a fluorine-containing resin and having a large average particle size. The method includes dispersing a solution containing a fluorine-containing monomer, a phase separation promoter, and a non-polymerizable solvent into water to provide a dispersion, and polymerizing the fluorine-containing monomer to provide a hollow fine particulate containing a fluorine-containing resin.

A high-haze anti-glare film is disclosed. The high-haze anti-glare film comprises a transparent substrate and an anti-glare layer on the substrate. The anti-glare layer comprises acrylate binder, amorphous silica microparticles and spherical organic polymer microparticles, wherein the spherical organic polymer microparticles are monodispersity and the average particle size thereof is smaller than that of the amorphous silica microparticles. The total haze (Ht) of the anti-glare film is more than 40%, and the total haze is the sum of the surface haze (Hs) and the inner haze (Hi) of the anti-glare film, and the inner haze (Hi) and the total haze (Ht) satisfy the relation 0.25<Hi/Ht<0.75. The present high-haze anti-glare film provides high anti-glare and anti-sparkling properties.

Silicone particles having excellent dispersibility are provided via the method herein. A cosmetic material having excellent feeling of use, and a highly functional paint and an electronic material are also provided. The silicone particles include a siloxane as a component. A content of a hydrogen atom bonded to a silicon atom per unit mass is 300 ppm or less, or optionally is 20 ppm or less. In addition, the silicon atom in the siloxane as a component for the silicone particles is crosslinked with another silicon atom via an alkylene group having a carbon number of 4 to 20.

The present invention provides polymer compositions having improved corrosivity, color stability and clarity. Also disclosed is a process of preparing the polymers. The process may comprise incorporating into the polymer an acid neutralizing amount of an amorphous aluminum silicate. The amorphous aluminum silicate may be present in the polymer in an amount such that the polymer composition having a Corrosivity Index of less than 6. A refractive index of the amorphous aluminum silicate may be the same or substantially the same as a refractive index of the polymer.

The present invention relates to a visibility improving film for a display panel and a display device including the same. More specifically, the present invention relates to a visibility improving film for a display panel capable of enhancing the visibility of a laser pointer and exhibiting excellent physical and optical properties, particularly preventing a specular reflection phenomenon of a laser pointer light, by including fine metal particles and inorganic oxide fine particles dispersed in a photocurable resin layer.

An imaging system includes a pixel array configured to generate image charge voltage signals in response to incident light received from an external scene. An infrared illumination source is deactivated during the capture of a first image of the external scene and activated during the capture of a second image of the external scene. An array of sample and hold circuits is coupled to the pixel array. Each sample and hold circuit is coupled to a respective pixel of the pixel array and includes first and second capacitors to store first and second image charge voltage signals of the captured first and second images, respectively. A column voltage domain differential amplifier is coupled to the first and second capacitors to determine a difference between the first and second image charge voltage signals to identify an object in a foreground of the external scene.

An aqueous coating composition comprising (a) from 12.5% to 87% by weight based on the weight of the aqueous coating composition, of a film-forming polymer; (b) from 9.5% to 85% by weight based on the weight of the film-forming polymer, of a specific oligomer; and (c) from 2.5% to 50% by weight based on the weight of the film-forming polymer, of beads with a mean particle size of from 5.0 to 10.5 μm; and a process for preparing the aqueous coating composition.

Methods of protecting a propeller include applying an inner polymer layer onto a propeller. The inner polymer layer is impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage and that does not chemically or galvanically interact with a material of the propeller. An outer polymer layer is applied onto the inner polymer layer, the outer polymer layer being impregnated with a biologically active chemical substance that inhibits biofouling-induced chemical, biological, and bio-proliferative damage and that repels biofouling organisms to prevent invasion of the inner polymer layer.

Composite particles comprising at least one type of polymer particles having surfaces that have thereon coatings formed of finely-disintegrated cellulose, with the polymer particles and the finely-disintegrated cellulose being inseparably bonded together.