A method for producing elliptical, needle-shaped, or rod-shaped polymer particles satisfying (1)-(3) below includes a step in which a synthesis solution including water, a mixed solvent of a hydrophilic organic solvent and a hydrophobic organic solvent, a polymeric stabilizer, a polymerization initiator, and an unsaturated monomer is heated, and, at least after the heating has started, the pH of the synthesis solution is adjusted to 5-9 inclusive to perform solution polymerization: (1) the average (L.sub.AV) length (L) in a two-dimensional projection diagram obtained by irradiating the particles with light from a direction orthogonal to the longitudinal direction is 0.1-80 m; (2) the average (D.sub.AV) breadth (D) in the two-dimensional projection diagram obtained by irradiating the particles with light from the direction orthogonal to the longitudinal direction is 0.05-40 m; and (3) the average (P.sub.AV) aspect ratio (L/D) calculated from the length (L) and the breadth (D) is 1.5-30.

Two-part aqueous coating compositions as well as methods of using thereof are described. The first coating component can comprise one or more polymers and the second coating component can comprise a flocculant. The first coating component and the second coating component can be provided as separate aqueous compositions. The first coating component and a second coating component that can be co-applied (e.g., simultaneously or sequentially) to a surface form a rapid set coating.

Two-part aqueous coating compositions as well as methods of using thereof are described. The first coating component can comprise one or more polymers and the second coating component can comprise a flocculant. The first coating component and the second coating component can be provided as separate aqueous compositions. The first coating component and a second coating component that can be co-applied (e.g., simultaneously or sequentially) to a surface form a rapid set coating.

The present invention relates to an aqueous dispersion of neutralized multistage polymer particles comprising an alkali metal base or a high boiling point amine salt of a carboxylic acid functionalized first stage, and a low T.sub.g second stage (shell). The dispersion is useful as an open time additive.

The present invention relates to an aqueous dispersion of neutralized multistage polymer particles comprising an alkali metal base or a high boiling point amine salt of a carboxylic acid functionalized first stage, and a low T.sub.g second stage (shell). The dispersion is useful as an open time additive.

A modification method of a surface of a substrate includes: applying a composition on a surface of a metal substrate, and heating a coating film formed by the applying, wherein the composition contains: a polymer having a first structural unit that includes an aromatic ring, and a second structural unit that includes an ethylenic double bond; a thermal acid generating agent; and a solvent, wherein the polymer has a functional group capable of bonding to a metal atom in the metal substrate.

A modification method of a surface of a substrate includes: applying a composition on a surface of a metal substrate, and heating a coating film formed by the applying, wherein the composition contains: a polymer having a first structural unit that includes an aromatic ring, and a second structural unit that includes an ethylenic double bond; a thermal acid generating agent; and a solvent, wherein the polymer has a functional group capable of bonding to a metal atom in the metal substrate.

It is an object of the present invention to provide a pattern forming method capable of easily forming a phase-separated structure with high accuracy, even in the case of widening the applicable range of a pattern size. The present invention relates to a pattern forming method comprising: applying an under coating agent onto a substrate, and applying a self-assembly composition for pattern formation to the surface of the substrate, onto which the under coating agent has been applied, and then forming a self-assembly film according to self-assembly phase separation, wherein the self-assembly composition for pattern formation comprises a block copolymer comprising a polymerization unit (a) having at least one selected from a structure represented by a formula (103) and a structure represented by a formula (104), and a polymerization unit (b) having a structure represented by a formula (105).

An encapsulation structure, a manufacturing method thereof and a display apparatus are provided in the field of display device encapsulation. The encapsulation structure includes a plurality of film layers coated on the outside of a display device and the plurality of film layers include an inorganic layer and an organic layer that are laminated. The organic layer includes a polymer matrix and a repairing microstructure.

An encapsulation structure, a manufacturing method thereof and a display apparatus are provided in the field of display device encapsulation. The encapsulation structure includes a plurality of film layers coated on the outside of a display device and the plurality of film layers include an inorganic layer and an organic layer that are laminated. The organic layer includes a polymer matrix and a repairing microstructure.