Invista and DuPont have settled three lawsuits between the companies, they announced today.
The lawsuits concerned polymers technology, adiponitrile technology and disputes related to existing supply agreements.
Terms were not released.
The settlement resolves litigation between DuPont's Performance Polymers business and Invista's Intermediates business dating back to Invista's separation from DuPont and sale to subsidiaries of Koch Industries in 2004.
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The settlement clarifies the respective rights and obligations of the companies, the companies said.
Wichita-based Invista is one of the world's largest integrated producers of polymers and fibers, primarily for nylon, spandex and polyester applications.