Abstract: This invention relates to a method for preparing super absorbent polymer, and more specifically, a method for preparing super absorbent polymer that can more productively prepare super absorbent polymer having excellent absorption properties and optimum gel strength at the same time, by using a specific polymerization initiator and chelating agent in combination during a crosslinking polymerization step.

Abstract: Provided is a method for preparing a superabsorbent polymer which realizes excellent drying efficiency by using a specific reducing agent compound selected from the group consisting of oxalic acid, sodium metabisulfite, sodium benzoate, or a combination thereof, and sodium dodecyl sulfate in combination in the polymerization step, thereby improving absorption properties of the polymer.

Abstract: This invention relates to a method for preparing super absorbent polymer, where wherein colloidal silica is added during coarse grinding, and/or silica is introduced during surface crosslinking. According to the preparation method of super absorbent polymer of the invention, super absorbent polymer that maintains excellent absorption properties, and simultaneously, exhibits improved vortex time and anti-caking efficiency, can be provided.

Abstract: Provided are a superabsorbent polymer composition, and a preparation method thereof. More particularly, provided are a superabsorbent polymer, of which a high absorption rate and excellent gel strength are improved at the same time by using specific additives in combination during polymerization, and a preparation method thereof.

Abstract: This invention relates to a method for preparing super absorbent polymer, and more specifically, a method for preparing super absorbent polymer that can more productively prepare super absorbent polymer having excellent absorption properties and optimum gel strength at the same time, by using a specific polymerization initiator and chelating agent in combination during a crosslinking polymerization step.

Abstract: There is provided a method of signal light detection, and a corresponding signal light detection device. The method includes obtaining a dark frame of an environment, the dark frame comprising a plurality of light blobs captured corresponding to lights captured in the environment, obtaining a bright frame of the environment, the bright frame comprising a plurality of light blobs corresponding to lights captured in the environment, identifying a plurality of candidate light blobs from the plurality of light blobs in the dark frame, identifying a plurality of candidate regions in the bright frame based on the plurality of candidate light blobs identified from the dark frame, classifying each of the plurality of candidate light blobs based on the corresponding candidate region from the bright frame, and evaluating whether one or more of the plurality of classified candidate light blobs is a signal light from a particular type of signaling device.