Phase change materials

In recent years, attention has been focused on energy-efficient appliances, such as ice storage air conditioners that run on cheaper off-peak electricity. At Harima Chemicals, we are developing materials focusing on normal paraffin that has large latent heat and can absorb large amounts of energy at constant temperature.

Fluorescent dyes

We recently developed a range of new fluorescent dyes. These are revolutionary new materials with a wide Stokes shift that overcome almost all of the drawbacks of conventional Fluorescent dyes. We have already developed orange, yellow and green pigments, and we are currently working on pigments with other fluorescent wavelengths.

Polylactide emulsions

Polylactides are a type of material derived from biomass sources, and they are attracting attention for use as a carbon-neutral resin that is highly effective at cutting CO2 emissions. However, polylactides are insoluble in water and tend to be hard and brittle, which has imposed limits on the ways in which these materials can be handled. Nevertheless, we have managed to solve the problems of these materials by forming polylactide dispersion using our own emulsification technology.

Granular talc

Talc is generally blended into thermoplastic resins in order to improve their mechanical properties. Talc powder itself is a material with low bulk density. It is therefore liable to form dust that degrades the working environment and reduces the efficiency with which it can be mixed in kneading machines. We have developed a granular form of talc powder that uses rosin modified resin as a binder to form talc granules from particles of talc powder with an average particle size of 1.8 µm.

Aluminum brazing materials

Aluminum brazing materials are used in the production of heat exchangers for automotive air conditioners that are more compact and have higher performance. We have developed a new concept in brazing materials by concentrating on the technology of pre-coating methods to implement low-cost aluminum brazing with higher quality.

Functional resins for electronic materials

In the manufacturing process of circuit formation of electronic devices, which have undergone drastic technological revolutions of recent years, various resin technologies are employed. At Harima Chemicals, Inc. we have made further progress in traditional polymer synthesis technologies, and we have researched and developed synthesis methods for resins with new functions　such as photosensitivity, photo amplification, water repellency and heat resistance.

Dispersants for ultra-fine particles

To obtain high performance dispersion, we have developed acrylic resin dispersant that can distribute various particles.
The dispersant can be tailored to suit various target particles, a wide range of target particle sizes, with or without binder resin accordingly.

Hydrophilic surface coating agents

We have developed hydrophilic surface coating agents that combine our coating resin technology and dispersion technology to produce organic/inorganic nanocomposite coating agents. Special functions that can be expected from hydrophilic surfaces including anti-fogging properties, contamination resistance and antistatic properties. These coating agents bond well to metals, plastics and even glass.