Breathable films

SK Functional Polymer has developed a technology for making monolithic breathable membranes.

Breathability can be described as the moisture vapour transmission rate (MVTR) and it represents the amount of water vapour that passes through a film or a structure over a certain period of time.


Thanks to the process used to produce Lotryl resins  (autoclave reactor), their melt characteristics (high melt strength, low neck-in, high drawability) make them perfectly adapted for extrusion-coating process. 


Thus, coating of Lotryl on solid substrates like fabrics or non wovens can be used to make strong flexible membranes and covers.


High polarity and low cristallization rate induce very good bond between Lotryl and substrate (woven or fabric fibers).


Recommended Lotryl® grades:  
20MA08 28MA07