A composition contains an amine compound, metal oxide particles, and a binder polymer having an acid group, in which the amine compound has, as a substituent on a nitrogen atom in the amine compound, a substituent which includes a linking group having a linking chain length of 3 or more, and a weight-average molecular weight of the amine compound is 100 or more.

Processes to prepare aqueous polymer dispersions are provided, as well as compositions thereof, which have high solids content (e.g., 50%) with low viscosity. The process uses a selective hydrophilic macro-RAFT agent of formula (I), and is substantially free of surfactants. This process can be used to make latex polymers with good stability, which can be used widely in coatings (e.g., architectural paints, stone paints, industrial coatings, wood coatings, etc.), adhesives, sealants and mastic compositions.

Processes to prepare aqueous polymer dispersions are provided, as well as compositions thereof, which have high solids content (e.g., 50%) with low viscosity. The process uses a selective hydrophilic macro-RAFT agent of formula (I), and is substantially free of surfactants. This process can be used to make latex polymers with good stability, which can be used widely in coatings (e.g., architectural paints, stone paints, industrial coatings, wood coatings, etc.), adhesives, sealants and mastic compositions.

Water-absorbent resin particles having a degree of gel association of 15 or more are disclosed.

Water-absorbent resin particles having a degree of gel association of 15 or more are disclosed.

Water-absorbent resin particles 10a, in which a gel flow rate measured by the following procedures having (1) to (3) is 10 to 70 g/min: (1) mixing 1 part by mass of the water-absorbent resin particles and 199 parts by mass of water to obtain a gel, (2) accommodating the gel in a funnel in a state where a circular lower end opening with a diameter of 8 mm in the funnel is closed, and (3) measuring an outflow amount of the gel per unit time after a lapse of 3 minutes from opening of the lower end opening as the gel flow rate.

Water-absorbent resin particles 10a, in which a gel flow rate measured by the following procedures having (1) to (3) is 10 to 70 g/min: (1) mixing 1 part by mass of the water-absorbent resin particles and 199 parts by mass of water to obtain a gel, (2) accommodating the gel in a funnel in a state where a circular lower end opening with a diameter of 8 mm in the funnel is closed, and (3) measuring an outflow amount of the gel per unit time after a lapse of 3 minutes from opening of the lower end opening as the gel flow rate.

An absorber 10 containing water-absorbent resin particles 10a, in which a rate of an amount of change in a water retention amount of physiological saline of the water-absorbent resin particles 10a when the water-absorbent resin particles 10a are irradiated with an ultraviolet ray for 3 hours with respect to a water retention amount of the water-absorbent resin particles 10a of physiological saline before irradiation with an ultraviolet ray is more than 0% and 30% or less.

An absorber 10 containing water-absorbent resin particles 10a, in which a rate of an amount of change in a water retention amount of physiological saline of the water-absorbent resin particles 10a when the water-absorbent resin particles 10a are irradiated with an ultraviolet ray for 3 hours with respect to a water retention amount of the water-absorbent resin particles 10a of physiological saline before irradiation with an ultraviolet ray is more than 0% and 30% or less.

The present invention teaches a composition and process for irreversibly agglomerated charge stable core shell microcapsules, each microcapsule containing a benefit agent core material, which may be the same or different, the polymeric all or walls comprising one or more (meth)acrylate polymers, or optionally combinations with other polymers, along with a polyvalent cation. The capsules of the invention adhere better to surfaces, are more stable and are useful for delivery of benefit agents.