High-strength adhesion between fluororesin and different materials using heat-assisted plasma treatment


May 10, 2022

Technology Overview:

Using this invented technology, fluororesin, namely PTFE (polytetrafluoroethylene) which displays poor adhesion properties can be bonded with high strength to unvulcanized rubber containing silica particles (butyl rubber (IIR) and natural rubber (NR)) and vulcanized rubber (silicon rubber (PDMS)). In addition, strong adhesion of fluororesin to metal (Cu), metal oxide (stainless steel SUS 304) and glass is also possible with PDMS.

Potential Applications / Potential Markets:

Various products that require surface coating with PTFE or PFA (tetrafluoroethylene/perfluoroalkyl vinyl ether copolymer). An alternative to products that use adhesives to bond fluororesin to dissimilar materials. An alternative to fluororesin products with improved adhesive properties due to sodium chemical treatment, which has a high environmental impact.

State of Development / Opportunity / Seeking:

・Available for exclusive and non-exclusive licensing
・Exclusive/non-exclusive evaluation for defined period (set up for options)
・Collaborative/supportive research

1. Development partner
2. Licensing 

IP Status:

1.WO2018/221665 (Issued: JP)
2.WO2019/230862 (Issued: JP)
3.WO2016/035894 (Issued: CN,DE,US)



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