Coatings for waterproofing electronic components
US12139635B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Sep 22, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Oct 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09872
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A circuit board water-proofing coating composition is provided comprising: at least one passivating agent, preferably containing a molecule comprising a thio-functional group, desirably a thiol group, an azolic moiety, or an azole, and combinations thereof; at least one binder component comprising an organic or inorganic film-forming polymer, and/or one or more polymer pre-cursors polymerizable on a substrate surface; and optionally one or more additive(s); also provided are methods of making and using the coating composition and coated circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.