The present invention provides a random copolymer including structural units represented by the following Chemical Formulae 1 to 3 ##STR00001##
for forming a neutral layer for significantly reducing process time and process costs, and promoting directed self-assembly pattern formation of a block copolymer. The present invention further provides a laminate for forming a pattern including a neutral layer having a small thickness variation value due to washing, by including the random copolymer for forming a neutral layer. The present invention further provides a method for forming a pattern capable of stably vertically orienting a block copolymer on a laminate for forming a neutralized pattern.

A separator includes a substrate and a coating layer on at least a surface of the substrate, the coating layer including first organic particles, second organic particles, and a first binder, the first organic particles have a smaller mean particle diameter (D50) than that of the second organic particles, and at least one selected from the first organic particles and the second organic particles has a core-shell structure.

A separator includes a substrate and a coating layer on at least a surface of the substrate, the coating layer including first organic particles, second organic particles, and a first binder, the first organic particles have a smaller mean particle diameter (D50) than that of the second organic particles, and at least one selected from the first organic particles and the second organic particles has a core-shell structure.

Described herein is a multi-phase polymer binder including an aqueous polymer dispersion, an optional hydrophobic emulsion, and an optional surfactant. The polymer binder, when dried, provides a water uptake of less than about 5 g/m.sup.2/20 min, a seal strength of at least about 200 Newton/meter (N/m) as measured at 25 C. or at 90 C., and sufficient block resistance to impart no substrate damage.

Described herein is a multi-phase polymer binder including an aqueous polymer dispersion, an optional hydrophobic emulsion, and an optional surfactant. The polymer binder, when dried, provides a water uptake of less than about 5 g/m.sup.2/20 min, a seal strength of at least about 200 Newton/meter (N/m) as measured at 25 C. or at 90 C., and sufficient block resistance to impart no substrate damage.

A water-soluble composition includes reducible copper ions or copper nanoparticles complexed with a reactive polymer. The reactive polymer can be crosslinked using suitable irradiation to provide copper-containing water-insoluble complexes. The water-soluble composition can be used to provide various articles and electrically-conductive materials that can be assembled in electronic devices. The reactive polymer has greater than 1 mol % of recurring units comprising sulfonic acid or sulfonate groups, at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally at least 1 mol % of recurring units comprising a pendant amide, amine, hydroxyl, lactam, phosphonic acid, or carboxylic acid group.

A water-soluble composition includes reducible copper ions or copper nanoparticles complexed with a reactive polymer. The reactive polymer can be crosslinked using suitable irradiation to provide copper-containing water-insoluble complexes. The water-soluble composition can be used to provide various articles and electrically-conductive materials that can be assembled in electronic devices. The reactive polymer has greater than 1 mol % of recurring units comprising sulfonic acid or sulfonate groups, at least 5 mol % of recurring units comprising a pendant group capable of crosslinking via [2+2] photocycloaddition, and optionally at least 1 mol % of recurring units comprising a pendant amide, amine, hydroxyl, lactam, phosphonic acid, or carboxylic acid group.

A method for making a low-specular-reflectance coating composition, includes providing a plurality of batches of substantially spherical particles including a first batch of particles having a first single mode particle size distribution with a peak corresponding to a first particle size, and a second batch of particles having a second single mode particle size distribution with a peak corresponding to a second particle size. A ratio of the second particle size to the first particle size is between 1.7-4.0. A binder and a solvent are provided and are combined with the plurality of batches of particles and mixed to form the low-specular-reflectance coating composition. A volume percent of the particles is between 2-30 volume percent, a volume percent of the binder is between 1-25 volume percent, and a volume percent of the solvent is between 45-97 volume percent.

A method for making a low-specular-reflectance coating composition, includes providing a plurality of batches of substantially spherical particles including a first batch of particles having a first single mode particle size distribution with a peak corresponding to a first particle size, and a second batch of particles having a second single mode particle size distribution with a peak corresponding to a second particle size. A ratio of the second particle size to the first particle size is between 1.7-4.0. A binder and a solvent are provided and are combined with the plurality of batches of particles and mixed to form the low-specular-reflectance coating composition. A volume percent of the particles is between 2-30 volume percent, a volume percent of the binder is between 1-25 volume percent, and a volume percent of the solvent is between 45-97 volume percent.

The present invention provides radiation curable hybrid ink and coating compositions comprising large amounts of inert hard resin. The radiation hybrid ink and coating compositions have good lithographic properties, low roller swelling, and a low gloss-back effect when overprinted with a UV varnish. The ink and coating compositions are useful for lithographic wet and waterless printing.