The IT-related Chemicals Sector supplies a wide range of products that support IT-related industries, including optical films for liquid crystal displays, photoresists and high-purity chemicals for use in semiconductor manufacturing, high-purity gallium and metalorganics for use as materials for compound semiconductors, super engineering plastics used in electronic parts and devices, and lithium-ion secondary battery materials. We promptly deliver highly functional and high value-added products in response to customers' needs, while striving to develop next-generation technologies and materials.
Polarizing Films
Polarizing films
These films are indispensable for liquid crystal displays. They absorb light in the direction parallel to the molecular axis and only transmit light perpendicularly.
Super Engineering Plastics
Super engineering plastics
Electronic parts made using super engineering plastics
Super engineering plastics have excellent heat resistance, strength, and thin-wall fluidity and are highly functional resins used in the manufacture of electrical and electronic products. They include liquid crystal polymers (LCP), the use of which is expanding because they can meet the need for lighter and finer materials, as well as polyether sulfone (PES) used for electronic parts and for carbon fiber composites used in the manufacture of airplanes.
Lithium-ion secondary battery materials
Lithium-ion secondary battery materials
A lithium-ion secondary battery comprises a cathode, an anode, and a separator that electrically insulates these two sheets from one another to prevent a short circuit. Sumitomo Chemical is expanding its business in separators and cathode materials.



