Gainesville, Florida -- Quick-Med Technologies Inc. said 10 Nov that the US Patent Office has issued a Notice of Allowance for a key 'composition of matter' patent for its novel polyurethane-modified polycation.
Potential uses for this polyurethane material include advanced wound dressings, medical adhesives, and catheters, the company said.
Nimbus is a family of antimicrobials, characterised by a high-charge-density polycation built into the backbone of various polymers -- polyurethane in this case.
Quick-Med said the forthcoming patent,' Disinfectant with Quaternary Ammonium Polymers and Copolymers,' covers the incorporation of the polycation into the main chain of the urethane polymer.
Nimbus technology offers opportunities for antimicrobial applications that employ absorbent substrates, and Quick-Med claims the unique polyurethane polycation "adds a new dimension," encompassing uses such as films and coatings, adhesives, catheters and other types of extruded tubing, and as a durable hand sanitiser.
According to the company, the physical state of the polyurethane polycation can be modified to alter the strength of the antimicrobial, the breathability of the film or coating and its flexibility or rigidity.
This patent situation is "strategically important because it significantly expands our proprietary Nimbus technology," said Ladd Greeno, Quick-Med's ceo. A patent will protect the underlying chemistry for "several of our cutting-edge developments including applications for advanced wound dressings, medical adhesives, and catheters," Greeno continued.
Life sciences company Quick-Med Technologies, of Gainesville, Florida, develops innovative technologies for the healthcare and consumer markets.