Thermosetting resin containing irradiated thermoplastic toughening agent
US8946322B2 · kind B2 · utility
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7References
20Claims
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Key dates
| Filing date | Apr 14, 2008 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Aug 27, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Thermosetting resins are provided that are toughened with an irradiated thermoplastic toughening agent and which have reduced levels of solvent-induced micro crack formation. The thermoplastic toughening agent is treated with a sufficient amount of high-energy radiation (e.g. electron beam or gamma rays) to cause a reduction in solvent-induced micro crack formation in the cured resin when compared to the same toughened thermosetting resin in which the non-irradiated version of the thermoplastic toughening agent is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.