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| (Source: EICT Korea) |
South Korean chemical giant LG Chem and tech startup EICT Korea have registered their first joint patent for a specialized polyurethane adhesive designed for high-permeability reverse osmosis (RO) membrane filters, according to records from the Korean Intellectual Property Office.
The patent, titled "Polyurethane Adhesive Composition Exclusively For High-permeability Reverse Osmosis Membrane Filters Utilizing Vegetable Oil-based Modified Bio-polyester Polyol And Prepolymer Isocyanate, and Method For Producing The Same" (KR2914309), represents a shift toward sustainable materials in the water purification industry.
The newly patented technology replaces traditional petroleum-based raw materials with vegetable oil-based "bio-polyester polyols." By utilizing renewable biomass, the companies aim to align with global carbon neutrality trends while maintaining high-performance standards.
Beyond its environmental benefits, the adhesive employs an acrylic modification technique. This "high-penetration design" allows the adhesive to permeate deeply into the microscopic pores of the filter membrane. The companies stated that this ensures "overwhelming pressure resistance reliability," preventing filters from bursting even under intense water pressure.
By PatenTrip
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