Listing ID : 2437529
Listed On January 30, 2026 111
Listing Updated January 31, 2026
Offered is a foundational intellectual property portfolio covering flash-spun high-density polyethylene (HDPE) nonwoven materials, including core material composition, manufacturing processes, and downstream applications. The portfolio underpins globally commercialized breathable barrier materials used in construction, protective apparel, medical packaging, filtration, and industrial applications.
Included Patent Assets
Core Manufacturing & Material Patents
US 3,081,510 – Flash-spinning polymer process for nonwoven fiber formation
US 3,169,899 – Flash-spun polyethylene plexifilamentary sheet material (foundational nonwoven structure)
US 3,227,784 – Continuous polymer filament and strand formation methods
US 3,532,589 – Bonding and consolidation techniques for flash-spun polyethylene webs
International Patent Coverage
WO 1998/007905 A2 – Improved flash-spun sheet materials for industrial, packaging, and filtration uses
EP 0970268 B1 – Enhanced flash-spun nonwoven fabric constructions and performance variants
Application-Specific Patent
US 6,355,333 B1 – Construction membrane utilizing flash-spun polyethylene sheet material.
Trademark Assets (Optional / Included)
Registered trademarks protecting the TYVEK® brand across multiple product categories:
US Reg. 0818737 – Nonwoven textile sheets
US Reg. 0817194 – Industrial laminated materials
US Reg. 0818688 – Synthetic sheet materials
US Reg. 4067935 – Building wraps and barrier materials
US Reg. 4234229 – Protective clothing and garments
US Reg. 7207772 – Printed identification and labeling products
CA Reg. TMA1298804 – Construction and industrial material categories.
Technology Advantages
Breathable yet liquid-resistant material structure
High tensile strength with low basis weight
Chemical and abrasion resistance
Scalable continuous manufacturing processes
Broad applicability across regulated and industrial markets.
Commercial Applications
Construction house wraps and vapor barriers
Protective apparel and cleanroom garments
Medical and pharmaceutical packaging
Industrial filtration and packaging
Labels, envelopes, and security substrates.
Transaction Structure
Available for outright acquisition or structured licensing
Assets suitable for defensive, offensive, or commercialization strategies
Ideal for materials manufacturers, construction product suppliers, PPE producers, or private equity roll-ups.
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