Stable solutions of monoalkyl tin alkoxides and their hydrolysis and condensation products
US12105418B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 28, 2023 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Nov 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Precursor solutions for radiation patternable coatings are formed with an organic solvent and monoalkyl tin trialkoxides in which the water content of the solvent is adjusted to be within 10 percent of a selected value. Generally, the water content of the solvent is adjusted through water addition, although water removal can also be used. In some embodiments, the adjusted water content of the solvent can be from about 250 ppm by weight to about 10,000 ppm by weight. With the appropriate selection of ligands, the adjusted precursor solutions can be stable for at least about 42 days, and in some cases at least 8 months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.