Efforts to eliminate CFCs around 1991 in Japan

Around 1991, The following six methods were considered and implemented as measures for defluoridation.

1. Substitute products that can replace the regulated CFCs (commonly known as CFC substitutes or second generation CFCs)

2. Development of technology, equipment, and devices that can reduce the amount of CFCs used, including CFC alternatives.

3. Development of technology and equipment to recover and reuse used CFCs.

4. Development of technology and equipment to disassemble used fluorocarbons

5. Reduction or total abolition of use of fluorocarbons

6. Non-purchase and non-sales of products using fluorocarbons.

(1) Asahi Glass, Showa Denko, Daikin Industries, Central Glass, Mitsui Dupont Fluorochemicals

(2) For (2), Hitachi, Hitachi Plant Technologies, Sharp, Ushio Electric, Sukrin

(3) Toyobo, Kureha Chemical Industry, Showa Denko, Asahi Glass, Central Glass, Daikin Industries, Kurimoto Iron Works

4) Ministry of International Trade and Industry, Ministry of Posts and Telecommunications

According to a survey conducted in April 1989 by the ozone layer countermeasures subcommittee of the Chemicals Council of the Ministry of International Trade and Industry, more than 80% of the 300 major companies that use CFCs were found to be using them at the end of the 20th century. According to a survey conducted in April 1989 by the ozone layer countermeasures subcommittee of the Chemicals Council of the Ministry of International Trade and Industry (MITI), more than 80% of the 300 major companies using CFCs were working to eliminate CFCs by the end of the 20th century.