Chisso Corporation

A strange disease was reported in the area around Minamata Bay in Japan. Forty-six people died and many more became ill. The illness was due to mercury poisoning from a plastics factory. The Chisso Corporation used mercury as a catalyst in making acetaldehyde. Dimethylmercury becomes concentrated up the food chain and the heavy reliance on food from the sea life in the bay caused the epidemic. Mercury became a source of worry in many U.S. rivers and has been monitored closely since then. Chisso was finally found guilty in 1973, and 300 people had died by 1980. 

Local residents knew that something was wrong even before 1956. From around 1950 and onwards, local cats had been seen to have convulsions, go mad and die. Even after the official discoveiy of the disease in 1956, It took another twelve years for the Japanese Government to officially admit the cause of the disease was the methyl mercury discharged by a local chemical factory of Chisso Corporation. Delayed actions of the Government authorities and Chisso Corporation resuleted in expanding the number of victims and kept patients in the dark for years. 

Metal, Method of Organic Synthesis with These, and Catalyst M. Yamaguchi etal, US Patent 6,303,796 (October 16, 2001) Assignee Chisso Corporation... 

The Chisso Corporation of Japan used inorganic mercury as a catalyst in the production of acetaldehyde. A fraction of this mercury was discharged within waste water into Minamata Bay. This contamination occurred between 1932 and 1968, with an estimated total of 150 tons of mercury delivered to the bay. This led to a gradual but severe poisoning of a considerable fraction of the 50 000 people living in a town adjacent to the bay, where the primary industry was fishing. Concentrations of mercury in the fish (such as mullet, sea beam, rockfish, and mackerel) were found to be over 10 ppm mercury. 

Takaoka E, Yoshikawa N,Yamada YMA, Sasai H, Shibasaki M (1997) Heterocycles 46 157 Urata Y (1997) Chisso Corporation. Personal communication Morao I, Cossio FP (1997) Tetrahedron Lett 38 6461... 

Reagents. Recombinant aequorin (Aq) with a free cys residue was from Chisso Corporation (Yokohama, Japan). Thermostable biotinylated firefly luciferase (b-Luc) was obtained from Kikkoman Corporation (Chiba, Japan). Aq labeled anti-Dig Fab fragment and b-Luc/streptavidin complex were produced by previously reported.1 HRP-labeled anti-DNP was purchased from LSL Co. (Tokyo). 

For decades the Chisso Corporation dumped its mercury waste into the sea. By 1956, the hnk between mercury pollution and Minamata disease was established, but surprisingly little action was taken. The dumping continued until 1968. The 26-year ban on fishing in the affected waters was hfted recently in 1995 [63]. 

The Chisso Corporation of Osaka, Japan has patented a flame-retardant resin laminate that includes a layer of polyolefin containing ammoniiun pyrophosphate and a nitrogen-containing organic compound. The laminate generates hardly any black smoke or toxic gas and has excellent appearance, printability, weathering and scratch resistance (US 583052). 

Chisso Corporation, assignee Japan Kokai Tokyo Koho, 81,149,452, 1981. 

Fishing was officially banned in 1957. It was found that the Chisso Corporation, a petrochemical company and maker of plastics such as polyvinyl chloride, had been discharging heavy-metal waste into the sea. They used mercury compounds as catalysts in their syntheses. It is believed that more than 1400 people were killed and perhaps, 20,000 people were poisoned to a lesser extent. The effects of mercury poisoning are still sometimes referred to as Minamata disease. 

Chisso Corporation, Tokyo, Japan http //www. jnc-corp.co.jp/english/... 

Y. Yamamoto and J. Hiraki, Silicone-modified antimicrobial polymer, antimicrobial agent and antimicrobial resin composition, US Patent 7 470 753, assigned to Chisso Corporation (Osaka, JP), December 30, 2008. 

Silane adhesion promoters are available globally from several manufacmrers including Dow Corning Corporation, Degussa (now Evonik Degussa), OSi Specialties (now Momentive Performance Materials), Chisso Corporation, Shin-Etsu Chemical, KCC Silicones, and several other Chinese suppliers such as Nanjing Capatue and Wuhan University Silicone New Material Co., Ltd. ... 

Chisso Corporation, Tokyo, Japan. ... 

Current affiliation Chisso Corporation, Tokyo, Japan. 

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