SCALABLE INTER-DIFFUSED ZWITTERIONIC POLYURETHANES FOR DURABLE ANTIBACTERIAL COATINGS
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United States of America Patent
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Issued Date -
Jan 18, 2024
app pub date -
Sep 12, 2023
filing date -
Jan 7, 2021
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Abstract
Durable antibacterial coatings are prepared by inter-diffusing zwitterionic polyurethane in acrylic polyurethane. Bacterial attachment is substantially eliminated from the surface of the coatings due to the hydrophilicity of the zwitterionic polyurethane. Long-term antibacterial properties were observed for both Gram-negative and Gram-positive bacteria even when the coatings were constantly challenged by mechanical abrasion.
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