Polybenzoxazine resins with high hydrogen content, and composites therefrom
US11124608B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Apr 9, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/068
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A material with significant protection properties from galactic cosmic radiation and solar energetic particles. Hydrogen-rich benzoxazines which are particularly effective for shielding against such radiation. Benzoxazine resin meets the processing requirements for use with ultra-high molecular weight polyethylene fiber as a hydrogen-rich reinforcement: cure of the resin at 120° C. This highly reactive benzoxazine resin also exhibits low viscosity and adequate shelf life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.