R&D & Service Firm


Innovative Films & Membranes

Core Technologies

LiSO's patented technologies along with extensive IPs enable facile, safe and environment-friendly production of high-performance, renewable, and yet sustainable dry/wet polymeric products. 

LiDP (LiSO Dry Process) (co)extrudes polymer melts via a flat-film die to produce films and membranes: opaque, clear or porous in character. LiDP is Eco-Friendly, capable of finely dispersed, nanoscale multiphase morphologies with superior strengths at an extremely thin gauge. 

LiWP (LiSO Wet Process) (co)extrudes polymer solutions into castings and upon extraction, nanoporous products. LiWP employs single- and multi-phase morphologies of TIPS/TIPR (thermally induced phase separation/ripening); yet, Eco-Friendly and superior in performance: safety, cost, strength, porosity, uniformity, and resistance to heat, voltage, environment, and chemicals.     

Intellectual Properties (IPs) 

LiSO retains long-standing expertise ranging from concept to commercial deployment for a wide variety of innovative polymeric films, alongside extensive industrial know-hows enabling breakthrough products. LiSO IPs are to Deliver: i) Solutions of enabling customers' innovations, ii) High-Performance Products at Low Cost, iii) Versatility of meeting specific/untapped market needs, and iv) Sustainability. 

LiSO Patents/IPs Cover (US9,694,344; US10,363,564; US 2018/0065105; etc.):

  • Immiscible and Interface Technologies
  • Dry, Wet and Hybrid Processes
  • Open and Closed Pore Structures
  • Multifunctional and Multilayer Films
  • Ion-Conductive/Selective Separators and Polyelectrolytes
  • Green and Solvent Free Wet Process
  • Coating & Thin Film Deposition     

LiSO Employs a Variety of Substrates:

  • Biopolymers, Renewables and Vegetable Oils
  • Polyolefin: PP, HDPE, UHMWPE 
  • Engineering Plastics
  • Polyarylether Ketones (PAEK)
  • Fluoropolymers
  • Polyimide (PI) Polymers
  • Polyphenylene Sulfide (PPS) 
  • Ionomers 
  • Polysulfone (PSU)
  • Vinyl Polymers
  • Cellulose Esters

  • Interfaces

State-of-the-art (SOA) nanoporous membranes require a single-phase solution undergoing phase separation to create a pore stricture; thus, limited to miscible polymer blends. However, ubiquitous in nature is immiscibility although it fails to produce nanoporosity and uniformity due to the inherent lack of homogeneity. 

LiSO's recent innovation was to uniquely utilize immiscible interfaces for manufacture of membrane products of a wide range of: i) materials from nonpolar to polar, ii) processes from wet and dry, iii) structures from nonporous to open, iv) performances from better than SOA to breakthrough, and v) applications from energy storage, separation and to packaging. 

LiSO's interface technologies enable sustainable processes and products, greener battery separators and electrolytes, and recycling of carbon found in the atmosphere. Our innovation was the outcome of deep insight into liquid-liquid, solid-solid and solid-liquid interfaces during manufacture/use of membrane separators.