The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Jun. 21, 2019
University College Cork—national University of Ireland, Cork, Cork, IE;
Michael A. Morris, Midleton, IE;
Sibu C. Padmanabhan, Silversprings, IE;
Joseph P. Kerry, Kilmichael Macroom, IE;
Malco C. Cruz-Romero, Glanmire, IE;
Abstract
A coating composition for applying a very thin film coating to a substrate such as a polymeric film comprises a copolymer such as a block copolymer (BCP) that is compatible with the substrate, an alcohol solvent or solvents capable of dissolving the copolymer, a hydrolysed metal alkoxide precursor, a carboxylic acid stabiliser, and an active agent in an ionic, molecular, or small nanoparticle form. The active agent is configured to provide a functionality to the coating composition, selected from antimicrobial, antifungal, barrier, therapeutic, electrical, electronic, magnetic and optical. The composition is a sol comprising a continuous non-sedimentable/stable suspension of very small sized (of nano order) amorphous inorganic polymers in their oligomeric or polymeric state, and comprising the active agent dispersed in a hydrolysed metal alkoxide-BCP matrix. Substrates coated with very thin coatings are also provided, including coated LDPE which is activated before coating by UV/ozone, plasma or corona treatment prior to deposition of a wetting layer.