WILMINGTON – DuPont has filed a complaint with the US International Trade Commission (ITC) against Chinese companies Xiamen Dangsheng New Materials (operating as Dangs) and Jiangsu Qingyun New Materials (operating as Kingwills), among others, to block the importation of products that infringe its intellectual property related to Tyvek flashspun polyethylene nonwovens.

The ITC is an independent, non-partisan agency that investigates and makes determinations in proceedings involving imports claimed to injure a domestic industry or violate US intellectual property rights.

DuPont is asking the ITC to investigate its claims and issue a general exclusion order to bar the importation of any infringing materials into the United States. This would include all applications where the infringing material is imported as a stand-alone product or incorporated into a converted or finished good.

“So many customers trust the superior quality and performance of authentic Tyvek products in their most vital applications,” said David Domnisch, vice president and general manager at DuPont Tyvek. “This is why we take actions to defend our proprietary technology advancements, our scientists who develop them, and our customers who utilise Tyvek products in life-critical applications. We are committed to fight for fair competition, vigorously defending our IP rights when they are being infringed and will pursue all available enforcement options in the US and other global jurisdictions.”

DuPont Tyvek has been a world leader in nonwoven technology for over 50 years and has enabled new dimensions of protection, security and safety in a wide variety of industries and applications, including medical packaging, personal protection, graphics and protective packaging and building envelope solutions.