Water absorbent polymers and a process for their preparation are disclosed. The process for preparing water absorbent polymers comprises preparing a slurry with relatively high amounts of polymer particles (in the range of 40 to 55 wt % of the total mass of the slurry) having water absorbed therein. The slurry is then directly spray dried to obtain water absorbent polymers.

Water absorbent polymers and a process for their preparation are disclosed. The process for preparing water absorbent polymers comprises preparing a slurry with relatively high amounts of polymer particles (in the range of 40 to 55 wt % of the total mass of the slurry) having water absorbed therein. The slurry is then directly spray dried to obtain water absorbent polymers.

A method of manufacturing a polymerizable composition is capable of imparting antibacterial properties and the like to a cured product of polymerizable composition without deteriorating an appearance of the cured product of the polymerizable composition. The method of manufacturing a polymerizable monomer wherein a solution, that a second polymerizable monomer is dissolved in a first solvent, is dispersed in a first polymerizable monomer, includes mixing the first polymerizable monomer, the second polymerizable monomer, and the first solvent. The first polymerizable monomer is a liquid, and the second polymerizable monomer is a solid.

A method of manufacturing a polymerizable composition is capable of imparting antibacterial properties and the like to a cured product of polymerizable composition without deteriorating an appearance of the cured product of the polymerizable composition. The method of manufacturing a polymerizable monomer wherein a solution, that a second polymerizable monomer is dissolved in a first solvent, is dispersed in a first polymerizable monomer, includes mixing the first polymerizable monomer, the second polymerizable monomer, and the first solvent. The first polymerizable monomer is a liquid, and the second polymerizable monomer is a solid.

Provided are a curable composition including a pigment, a curable compound, and a resin A having a constitutional unit represented by Formula (1), a constitutional unit represented by Formula (2), and a constitutional unit having a molecular weight of 1,000 or less and represented by Formula (3); a cured product of the curable composition; a color filter including the cured product; and a solid-state imaging element and an image display device including the color filter. X.sup.1 represents an (m+2)-valent organic group, X.sup.2 and X.sup.3 represent a trivalent organic group, m represents an integer of 1 to 4, L.sup.2's each independently represent O or NR, L.sup.3's each independently represent a carbonyl group, O, or NR, R represents a hydrogen atom, an alkyl group, or an aryl group, P.sup.1 represents a group having a polymer chain, R.sup.1's each independently represent a substituent, and R.sup.3 represents a group having a polymerizable group.

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Provided are a curable composition including a pigment, a curable compound, and a resin A having a constitutional unit represented by Formula (1), a constitutional unit represented by Formula (2), and a constitutional unit having a molecular weight of 1,000 or less and represented by Formula (3); a cured product of the curable composition; a color filter including the cured product; and a solid-state imaging element and an image display device including the color filter. X.sup.1 represents an (m+2)-valent organic group, X.sup.2 and X.sup.3 represent a trivalent organic group, m represents an integer of 1 to 4, L.sup.2's each independently represent O or NR, L.sup.3's each independently represent a carbonyl group, O, or NR, R represents a hydrogen atom, an alkyl group, or an aryl group, P.sup.1 represents a group having a polymer chain, R.sup.1's each independently represent a substituent, and R.sup.3 represents a group having a polymerizable group.

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Additive manufacturing compositions include low-absorbing particles or non-absorbing particles that have an absorbance for wavelengths of 300 nm to 700 nm that is equal to or greater than 0 Au and is less 1.0 Au, such as 0.001 Au≤absorbance≤0.7 Au. Slurries including such particles and an uranium-containing particle and that are used in additive manufacturing processes have an increased penetration depth for curative radiation. Removal of low-absorbing particles or non-absorbing particles during post-processing of as-manufactured products results in pores that create porosity in the as-manufactured product that provide a volume accommodating fission gases and/or can enhance wicking of certain heat pipe coolant liquids. Low-absorbing particles or non-absorbing particles can be functionalized for improved properties, for example, with fissionable material for improved ceramic yields, with burnable poisons or stabilizers for increased homogeneity, with stabilizers for localized delivery of the stabilizer, or with combinations thereof.

Additive manufacturing compositions include low-absorbing particles or non-absorbing particles that have an absorbance for wavelengths of 300 nm to 700 nm that is equal to or greater than 0 Au and is less 1.0 Au, such as 0.001 Au≤absorbance≤0.7 Au. Slurries including such particles and an uranium-containing particle and that are used in additive manufacturing processes have an increased penetration depth for curative radiation. Removal of low-absorbing particles or non-absorbing particles during post-processing of as-manufactured products results in pores that create porosity in the as-manufactured product that provide a volume accommodating fission gases and/or can enhance wicking of certain heat pipe coolant liquids. Low-absorbing particles or non-absorbing particles can be functionalized for improved properties, for example, with fissionable material for improved ceramic yields, with burnable poisons or stabilizers for increased homogeneity, with stabilizers for localized delivery of the stabilizer, or with combinations thereof.

Provided is an alkyl-modified carboxyl group-containing copolymer with which a neutralized viscous liquid can be prepared which has excellent dispersibility in water, has a viscosity that does not change greatly regardless of addition of an electrolyte, and has high transparency in the presence of an electrolyte. This alkyl-modified carboxyl group-containing copolymer contains: 100 parts by mass of a (meth)acrylic acid; 1.5-4.5 parts by mass of a (meth)acrylic acid alkyl ester, in which an alkyl group has 18-24 carbon atoms; and 0-0.1 parts by mass of a compound having two or more ethylenically unsaturated groups, wherein the copolymer contains 1.5-4.5 parts by mass of a nonionic surfactant.

Provided is an alkyl-modified carboxyl group-containing copolymer with which a neutralized viscous liquid can be prepared which has excellent dispersibility in water, has a viscosity that does not change greatly regardless of addition of an electrolyte, and has high transparency in the presence of an electrolyte. This alkyl-modified carboxyl group-containing copolymer contains: 100 parts by mass of a (meth)acrylic acid; 1.5-4.5 parts by mass of a (meth)acrylic acid alkyl ester, in which an alkyl group has 18-24 carbon atoms; and 0-0.1 parts by mass of a compound having two or more ethylenically unsaturated groups, wherein the copolymer contains 1.5-4.5 parts by mass of a nonionic surfactant.