In October, Mitsubishi Plastics, Inc. (head office: Chuo-ku, Tokyo; president: Hiroshi Yoshida) began taking orders for a movable partition that adds an titanium oxide layer to its conventional Hishi Wall™ Partition movable partitions with a photocatalytic coat. The Hishi Wall™ portable partition with a photocatalytic coat catalyzes ultraviolet radiation in sunlight and indoor fluorescent lights to cause oxidative decomposition of organic materials. This gives it a number of benefits: it prevents soiling, by breaking down adhered oil, nicotine, and other substances; it acts as a deodorant, breaking down the odors of cigarette smoke and ammonia; it has an antibacterial effect by preventing the propagation of bacteria; and it breaks down formaldehyde, which is believed to be a cause of sick house syndrome.

Hishi Wall™ photocatalytic coated panels

While most construction materials with added photocatalytic functions have been developed for use in building exteriors, MPI has developed its new Hishi Wall™ product to be fully usable indoors, where there is less light (ultraviolet radiation). The surface is made from HISHIMETAL™, MPI's plastic film-laminated steel sheets developed in order to boost decomposition activity. Even indoors where there is little ultraviolet radiation, the product has various decomposition capabilities under the brightness of fluorescent lighting (about 500 to 1,500 lx). It is also highly durable, and can maintain its breakdown performance even after being alternately cleaned with a solvent and wiped dry using a cloth 1,000 times (according to MPI testing).
It also has an added antistatic layer, which prevents dirt and dust from sticking to the surface.

MPI had already manufactured and sold partitions for offices, toilet stalls, hospitals, clean rooms, and other applications, and it had sold related materials as well. Adding the newly developed photocatalytic-coated partitions to its lineup will enable MPI to differentiate itself from its rivals and improve its sales capabilities in the marketplace.

●Terminology
Sick house syndrome
This is the name for a constellation of physical ailments caused by chemicals used in construction materials, room interiors, and the like, which then escape into the air. One such known pollutant is formaldehyde.

●Main Features
(1) Fully effective at indoor lighting (ultraviolet radiation) levels
It is fully effective at the brightness of fluorescent lighting (about 500 to 1,500 lx)
(2) Prevents soiling (self-cleaning)
It breaks down difficult-to-remove substances like oil and nicotine adhered to walls, making them easy to wipe off.
(3) Deodorant
It breaks down unpleasant indoor odors, such as ammonia, sweat, and acetaldehyde (which is one of the odor constituents of cigarette smoke), making indoor spaces more pleasant.
(4) Antibacterial
It oxidizes the coenzymes of bacterial cells, reducing the cells' respiration and preventing the propagation of bacteria.

●Main Applications
Offices:
Reception rooms, conference rooms, smoking rooms, break rooms, locker rooms, and restroom areas
Homes:
Living rooms, kitchens, children's rooms, and bathrooms
Hospitals:
Waiting rooms, nurses' stations, examination rooms, smoking rooms, washrooms, toilets, patient rooms, and consultation rooms

●Product Overview

Name	Hishi Wall™ photocatalytic coated panels
Manufacturer's price	About 30% above previous product
Launch of sales	Orders will be taken starting on October 5th

■Inquires regarding this material should be directed to the
	Public Relations Section, General Administration Dept., Mitsubishi Plastics Inc. TEL: +81-3-3279-3800