Sumitomo Seika Chemicals Company, Limited. engages in the manufacture and sale of absorbent polymers, functional chemicals, and gases in Japan and internationally. It operates through the Super Absorbent Polymers and Functional Materials segments. The Super Absorbent Polymers segment offers a super absorbent polymer, AQUA KEEP, used in water absorbent materials for hygiene products, including disposable diapers, baby diapers, sanitary napkins, and incontinent pad; industrial materials comprising water blocking tape for power and optical cables and water-swelling rubber; and other applications, such as water absorbent pad, freshness agent, water retention agent, anti-dewing agent, pet sheets, and water absorbent sheets. Its Functional Materials segment manufactures and sells water soluble polymers, emulsions, latexes, powder resins, and organic synthetic chemicals. This segment also produces particle polymers, pharmaceuticals-related products, functional products, electronics gases, standard gases, industrial chemicals, medical gases, chemical gases, oxygen, nitrogen, hydrogen, and other gas generators, including PSA systems. The company was incorporated in 1944 and is headquartered in Osaka, Japan.