Disclosed is a formulation comprising a copolymer comprising one or more high refractive index first monomers and one or more second monomers comprising a reactive side chain and one or more solvents. The formulation may optionally contain additional components. Further disclosed are methods for forming optical thin films from the formulation and optical devices containing the optical thin films.

Provided are a resin composition including a coloring material, a resin, and a solvent, in which, in a case where a film having a thickness of 0.60 μm is formed by heating the resin composition at 200° C. for 30 minutes, a rate of change ΔA in an absorbance of the film after performing a heating treatment of the film at 300° C. for 5 hours in a nitrogen atmosphere, which is represented by Expression (1), is 50% or less; a film formed of the resin composition; a color filter; a solid-state imaging element; and an image display device. In the following expression, ΔA is the rate of change in the absorbance of the film after the heating treatment, A1 is a maximum value of an absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm, and A2 is an absorbance of the film after the heating treatment, and is an absorbance at a wavelength showing the maximum value of the absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm.

ΔA=|100−(A2/A1)×100|  (1)

Provided are a resin composition including a coloring material, a resin, and a solvent, in which, in a case where a film having a thickness of 0.60 μm is formed by heating the resin composition at 200° C. for 30 minutes, a rate of change ΔA in an absorbance of the film after performing a heating treatment of the film at 300° C. for 5 hours in a nitrogen atmosphere, which is represented by Expression (1), is 50% or less; a film formed of the resin composition; a color filter; a solid-state imaging element; and an image display device. In the following expression, ΔA is the rate of change in the absorbance of the film after the heating treatment, A1 is a maximum value of an absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm, and A2 is an absorbance of the film after the heating treatment, and is an absorbance at a wavelength showing the maximum value of the absorbance of the film before the heating treatment in a wavelength range of 400 to 1100 nm.

ΔA=|100−(A2/A1)×100|  (1)

Disclosed herein is a use of a composition, comprising a non-toxic polyanionic material or a salt thereof to dissociate a polymeric membrane. In addition, a method of dissociating a polymeric membrane is also presented, the method comprising the steps of providing a polymeric membrane; and dissociating the polymeric membrane by adding a composition comprising a non-toxic polyanionic material to the polymeric membrane.

Disclosed herein is a use of a composition, comprising a non-toxic polyanionic material or a salt thereof to dissociate a polymeric membrane. In addition, a method of dissociating a polymeric membrane is also presented, the method comprising the steps of providing a polymeric membrane; and dissociating the polymeric membrane by adding a composition comprising a non-toxic polyanionic material to the polymeric membrane.

Provided is a stationary phase for supercritical fluid chromatography, the stationary phase having satisfactory molecule-identifying ability, in particular, satisfactory separating properties with respect to not only acidic compounds or basic compounds but also fused aromatic compounds or aromatic isomers. The stationary phase for supercritical fluid chromatography includes a support having, bonded thereto, a polymer in which the main chain has nitrogenous aromatic rings in the repeating units.

Provided is a stationary phase for supercritical fluid chromatography, the stationary phase having satisfactory molecule-identifying ability, in particular, satisfactory separating properties with respect to not only acidic compounds or basic compounds but also fused aromatic compounds or aromatic isomers. The stationary phase for supercritical fluid chromatography includes a support having, bonded thereto, a polymer in which the main chain has nitrogenous aromatic rings in the repeating units.

The present application provides a poly(allylguanidine) and the manufacturing process thereof. In addition, the present application further provides uses of the poly(allylguanidine), which can be applied in culturing neurons or as an implant for the affected area of a brain tumor after surgical procedure.

The present application provides a poly(allylguanidine) and the manufacturing process thereof. In addition, the present application further provides uses of the poly(allylguanidine), which can be applied in culturing neurons or as an implant for the affected area of a brain tumor after surgical procedure.

A resin composition that has excellent adhesiveness to chips and substrates such as printed wiring boards and excellent flux activity is provided. The present application provides a resin composition containing: a benzoxazine compound (A); an organic compound (B) having a flux function; and at least one thermosetting component (C) selected from a phenolic resin and a radical polymerizable thermosetting resin, wherein the radical polymerizable thermosetting resin is a resin or a compound having at least one or more functional groups selected from the group consisting of an alkenyl group, a maleimide group and a (meth)acryloyl group, and wherein a mass ratio between the benzoxazine compound (A) and the thermosetting component (C) ((A)/(C)) is 20/80 to 90/10.