Antimicrobial coating composition with improved yellowing resistance
US10550279B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2241
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An antimicrobial coating composition comprising, i) a first polymer; ii) from 50 ppm to 2000 ppm of at least one of silver ions and silver element; and iii) from 10% to 60% of titanium dioxide particles. From 50% to 100% of the titanium dioxide particles are encapsulated by a second polymer; and the total amount of the first and the second polymers is from 5% to 80% by dry weight based on total dry weight of the coating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.