Primary coating compositions with improved microbending performance
US11822117B2 · kind B2 · utility
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136References
14Claims
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Key dates
| Filing date | Oct 1, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Nov 20, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curable compositions that include an oligomer with one or more internal urethane linkages and OH groups capped by an Acrylate-End-Capping (AEC) compound. The curable compositions may be made by reacting a polyol with a diisocyanate compound to form a pre-oligomer compound having one or more internal urethane linkages and terminal OH groups. The curable coating compositions may be cured to form a coating for an optical fiber, for example, a primary coating for an optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.