Flexsys Files Rubber Complaint | Chemical & Engineering News
Volume 86 Issue 20 | p. 21 | Concentrates
Issue Date: May 19, 2008

Flexsys Files Rubber Complaint

Department: Business

The Flexsys rubber chemicals subsidiary of Solutia filed a complaint with the U.S. International Trade Commission against China's Sinorgchem and South Korea's Kumho Petrochemical and Kumho Tire. Flexsys says the firms have infringed on its patents to make 4-aminodiphenylamine, an intermediate used to make a compound that prevents premature degradation of rubber hoses, tires, and belts. Flexsys wants ITC to bar importation into the U.S. of 4-ADPA and compounds made from it. It also has filed a separate civil patent suit against the three firms in U.S. District Court for the Northern District of Ohio.

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