Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

A latex of an acid-modified conjugated diene polymer including the acid-modified conjugated diene polymer obtained by modifying a conjugated diene polymer with an acid group-containing compound, in which a content of a structural unit derived from the acid group-containing compound is 0.2 to 0.7 parts by weight with respect to 100 parts by weight of the acid-modified conjugated diene polymer; a content of a water-soluble polymer in the latex is 2 parts by weight or less with respect to 100 parts by weight of the acid-modified conjugated diene polymer; when a solids content of the latex is adjusted to 60 wt %, a viscosity at 25° C. is 800 mPa.Math.s or less; and when the solids content of the latex is adjusted to 50 wt %, the viscosity at 25° C. is 300 mPa.Math.s or less.

A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. Surface acid content A of the particulate polymer is 0.05 mmol/g or more, acid content B in an aqueous phase of the binder composition per 1 g of the particulate polymer is not less than 0.03 mmol/g and not more than 0.80 mmol/g, and a ratio (A/B) of the surface acid content A of the particulate polymer and the acid content B in the aqueous phase of the binder composition is not less than 0.5 and not more than 5.0.

A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. Surface acid content A of the particulate polymer is 0.05 mmol/g or more, acid content B in an aqueous phase of the binder composition per 1 g of the particulate polymer is not less than 0.03 mmol/g and not more than 0.80 mmol/g, and a ratio (A/B) of the surface acid content A of the particulate polymer and the acid content B in the aqueous phase of the binder composition is not less than 0.5 and not more than 5.0.

A conductive composition including a conductive polymer (A), a water-soluble polymer (B) other than the conductive polymer (A), and a solvent (C), wherein a peak area ratio is 0.44 or less, which is determined based on results of analysis performed using a high performance liquid chromatograph mass spectrometer with respect to a test solution obtained by extracting the water-soluble polymer (B) from the conductive composition with n-butanol, and calculated by formula (I):

Area ratio=Y/(X+Y)

wherein X is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of 600 or more from a total ion current chromatogram, Y is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of less than 600 from the total ion current chromatogram.

A conductive composition including a conductive polymer (A), a water-soluble polymer (B) other than the conductive polymer (A), and a solvent (C), wherein a peak area ratio is 0.44 or less, which is determined based on results of analysis performed using a high performance liquid chromatograph mass spectrometer with respect to a test solution obtained by extracting the water-soluble polymer (B) from the conductive composition with n-butanol, and calculated by formula (I):

Area ratio=Y/(X+Y)

wherein X is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of 600 or more from a total ion current chromatogram, Y is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of less than 600 from the total ion current chromatogram.

A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.

A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.

The water-soluble resin for printing of the present invention includes a monomer unit A having a sulfonate group; and a monomer unit B having no hydrophilic group, and a percentage of the monomer unit A based on a total of all monomer units is 5 to 35 mol %. According to the water-soluble resin for printing of the present invention, a printed matter from which a printing layer can be safely and efficiently removed with neutral water and which is excellent in water resistance can be realized.