The present invention relates to an antireflection film. The antireflection film includes a low refractive index layer having excellent alkali resistance and exhibiting remarkably improved mechanical properties such as scratch resistance and impact resistance as well as reduction of a glare phenomenon, and a base film exhibiting excellent mechanical strength and water resistance in spite of a thin thickness and having no fear of interference fringes occurring. Therefore, such antireflection film can be used as a protective film of a polarizing plate or used as any other component so as to provide a thin display device, and furthermore, can effectively prevent the glare phenomenon of the display device, and can more improve the durability and lifespan thereof.

The present invention is to provide a hard coating layered optical film, comprising a poly(methylmethacrylate) (PMMA) base film and a hard coating layer thereon. The hard coating layer comprises a (meth)acrylate composition and an initiator, wherein the (meth)acrylate composition comprises a urethane (meth)acrylate oligomer of functionalities from 6 to 15, at least one (meth)acrylate monomer of functionalities from 3 to 6 and at least one (meth)acrylate monomer of functionalities less than 3, wherein the molecular weight of the (meth)urethane acrylate oligomer of functionalities from 6 to 15 is ranging between 1,000 to 4,500. The hard coating layer of the hard coating layered optical film can be further coated with a functional layer, such as a low reflection layer to form an anti-reflection hard coating layered optical film. The hard coating layer can optionally comprise micro-particles to generate an anti-glare hard coating film. The anti-glare hard coating film can be further coated with a functional layer, such as a low reflection layer to form an anti-reflection anti-glare hard coating layered optical film.

The invention is to provide an anti-reflective film. The anti-reflective film comprises a substrate, a hard coating layer disposed on the substrate and a low refractive layer disposed on the hard coating layer. The low refractive layer comprises a (meth)acrylate resin, hollow silica nanoparticles, an initiator and a leveling agent. Wherein the leveling agent comprises a (meth)acrylic-modified organosilicone compound having a perfluoropolyether group. The reflectivity of the anti-reflective film of the present invention is in the range of 1.2% to 1.4%.

Disclosed herein is a copolymer comprising first polymerized units of the formula (1); ##STR00001## wherein: R.sub.1 is H or a substituted or unsubstituted C.sub.1-C.sub.6 alkyl group; and R.sub.2 is a substituted or unsubstituted C.sub.3-C.sub.20 alkyl group that optionally includes one or more of O, S, N, C(O), or C(O)O, NC(O), C(O)NR; wherein R is H or a substituted or unsubstituted C.sub.1-C.sub.6 alkyl group; and second polymerized units of the formula (2): ##STR00002## wherein: R.sub.3 is a substituted or unsubstituted C.sub.1-C.sub.6 alkyl group that optionally includes one or more of O, N, S, C(O), or C(O)O; wherein the first polymerized units and the second polymerized units are chemically different, and the copolymer is free of fluorine.

The present invention relates to an antireflection film which exhibits one extremum at a thickness of 35 nm to 55 nm from the surface and exhibiting one extremum at a thickness of 85 nm to 105 nm from the surface in a graph showing the result of Fourier transform analysis for the result of X-ray reflectivity measurement using CuK-alpha rays.

The invention provides a dust repellant and anti-reflective inorganic coating and the method for preparing the coating. The dust repellant and anti-reflective inorganic coating includes nano-porous silica (SiO.sub.2) network of about 5 nm to about 35 nm and is characterized by cracks. The method of preparing the dust repellant and anti-reflective inorganic coating on a substrate includes mixing of aqueous SiO.sub.2 solution with a solvent. The aqueous SiO.sub.2 solution with the solvent is stirred to form a solution. The solution is coated on the substrate to form a film on the surface of the substrate. Thereafter, the film is annealed by heating the film to a temperature of about 500 C. to about 700 C. within a period of about 2 minutes to about 2 hours. Finally, the film is allowed to cool down.

Curable film-forming sol-gel compositions that are essentially free of inorganic oxide particles are provided. The compositions contain: a tetraalkoxysilane; a solvent component; and non-oxide particles, and further contain either i) a mineral acid or ii) an epoxy functional trialkoxysilane and a metal-containing catalyst. Coated articles demonstrating antiglare properties are also provided, comprising: (a) a substrate having at least one surface; and (b) a cured film-forming composition applied thereon, formed from a curable sol-gel composition comprising a silane and non-oxide particles. A method of forming an antiglare coating on a substrate is also provided. The method comprises: (a) applying a curable film-forming sol-gel composition on at least one surface of the substrate to form a coated substrate; and (b) subjecting the coated substrate to thermal conditions for a time sufficient to effect cure of the sol-gel composition and form a coated substrate with a sol-gel network layer having anti-glare properties.

Methods for manufacturing three-dimensional articles having reduced surface haze, by applying a coating to the surface of a three-dimensional article made by additive manufacturing are described.

This invention provides hollow particles having a shell containing at least one layer and having an average particle diameter of 10 to 150 nm, wherein a ratio between absorbance at 908 cm.sup.1 (A908) and absorbance at 1722 cm.sup.1 (A1722) in an infrared absorption spectrum obtained by measuring the hollow particles by ATR-FTIR (absorbance ratio : A908/A1722) is 0.1 or less.

A method of making a liquid coating, the method comprising the steps of a) sorting and grouping compatible solvents and resins based on at least one of the following: sheen, color, density and gloss level to form an intermediate pulp; b) mixing alkyds and solvents with intermediate pulp to form a mixture; c) blending the mixture at an approximate speed of 1600 rpm; d) adding one or more of the following: pigment, solvent or alkyds to the mixture; and e) blending and filtering the mixture to form the homogenous liquid coating. The liquid coating includes a gloss alkyd enamel, an alkyd stain, a matte alkyd enamel, an anti-corrosive red oxide matte primer, an alkyd enamel having a semi-gloss/satin/egg-shell finish, a bitumen primer, a bitumen emulsion, an extra durable bitumen emulsion SBR, and a bitumen mastics (putty).