Provided is hollow resin particles having higher compressive strength and more excellent heat insulating properties and heat resistance than before. The hollow resin particles each having one or two or more hollow portions, wherein a number average particle diameter is from 0.1 m to 9.0 m, a void ratio is from 70% to 99%, and an amount of the volatile organic compound contained is 5% by mass or less.

Provided are a composition for forming a primer layer capable of improving wettability of a curable composition for imprinting on a substrate while maintaining imprinting performance, a kit, a primer layer, and a laminate.

The composition for forming a primer layer which is used for forming a primer layer contains: a polymerizable compound having a viscosity of 200 to 2,000 mPa.Math.s at 23 C.; and a solvent, in which a content of the polymerizable compound in a nonvolatile component contained in the composition is greater than or equal to 30 mass %, a content of the solvent in the composition is greater than or equal to 98.0 mass %, and the primer layer is a liquid film in a case where a curable composition for imprinting is applied onto a surface of the primer layer, and the primer layer and the curable composition for imprinting are soluble to each other.

Provided are a composition for forming a primer layer capable of improving wettability of a curable composition for imprinting on a substrate while maintaining imprinting performance, a kit, a primer layer, and a laminate.

The composition for forming a primer layer which is used for forming a primer layer contains: a polymerizable compound having a viscosity of 200 to 2,000 mPa.Math.s at 23 C.; and a solvent, in which a content of the polymerizable compound in a nonvolatile component contained in the composition is greater than or equal to 30 mass %, a content of the solvent in the composition is greater than or equal to 98.0 mass %, and the primer layer is a liquid film in a case where a curable composition for imprinting is applied onto a surface of the primer layer, and the primer layer and the curable composition for imprinting are soluble to each other.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.

Disclosed are a curable composition, a cured layer manufactured using the curable composition, a color filter including the cured layer, and a display device including the color filter. The curable composition includes (A) quantum dots; and (B) a curable monomer having a viscosity of less than 6.2 cps and a vapor pressure of 1?10.sup.?6 torr to 3?10.sup.?3 torr.

Disclosed are a curable composition, a cured layer manufactured using the curable composition, a color filter including the cured layer, and a display device including the color filter. The curable composition includes (A) quantum dots; and (B) a curable monomer having a viscosity of less than 6.2 cps and a vapor pressure of 1?10.sup.?6 torr to 3?10.sup.?3 torr.

Described are polyurethane-vinyl hybrid polymers, methods of making them and their use. The hybrid polymers are made from an anionic polyurethane and a polymerizable vinyl compound, wherein the polymerizable vinyl compound is selected from methylene malonates, methylene beta-ketoesters and methylene beta-diketones. The hybrid polymers can be used as binder in structural adhesives, as binder in pressure-sensitive adhesives, as binder in laminating adhesives, as binder in contact adhesives, as binder in ink, as binder in paints, as binder in coatings, as binder for fiber bonding, as binder for particle bonding or as binder in high cohesion adhesive tapes.

Methods and systems for use of switchable water, which is capable of reversibly switching between an initial ionic strength and an increased ionic strength, is described. The disclosed methods and systems can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions, desalination, clay settling, viscosity switching, etc. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with C0.sub.2, CS.sub.2 or COS or treatment with Bronsted acids. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, inert gas, heating, agitating, introducing a vacuum or partial vacuum, or any combination or thereof.

Methods and systems for use of switchable water, which is capable of reversibly switching between an initial ionic strength and an increased ionic strength, is described. The disclosed methods and systems can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions, desalination, clay settling, viscosity switching, etc. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with C0.sub.2, CS.sub.2 or COS or treatment with Bronsted acids. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, inert gas, heating, agitating, introducing a vacuum or partial vacuum, or any combination or thereof.

Vinylcyclopropane of general formulae I

##STR00001##

in which X, Y in each case are O or NH, wherein X and Y cannot have the same meaning, R.sup.1 is a linear or branched C.sub.1-C.sub.8-alkyl radical, which can be interrupted by O, S, an ester group or a urethane group, R.sup.2 is a linear or branched C.sub.2-C.sub.10-alkylene radical, which can be interrupted by O, S, an ester group or a urethane group, R.sup.3 is a hydrocarbon radical with 1 to 20 carbon atoms, which additionally can contain one or more N, O or S atoms, and n is 1, 2, 3 or 4, preferably 1 or 2. The vinylcyclopropanes are characterized by a low shrinkage and a high reactivity on radical polymerization and are suitable in particular for the preparation of dental materials.