Purification process of methacrylic acid

Assignee

• Mitsui Toatsu Chemicals, Incorporated
• Kyowa Gas Chemical Industry Co.

Inventors

• Kozo Iwasaki (4 patents)
• Morimasa Kuragano (5 patents)
• Minoru Koshibe (4 patents)
• Yoshihiro Sezaki (4 patents)
• Katsuji Yoguchi (5 patents)
• Yoshio Koyama (9 patents)

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