Polyetherimide polycarbonate blends
US9228082B2 · kind B2 · utility
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20References
52Claims
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Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Mar 17, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/455
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The disclosure relates to compositions exhibiting a UV resistance of ΔE ranging from more than 0 to less than or equal to 10 units after exposure to ultraviolet light for 300 hours, per ASTM D-4459 protocol. The compositions can include at least 15 wt % of a polyetherimide; at least 35 wt % of a polycarbonate; a polyetherimide siloxane; and optionally, at least one UV stabilizer. The disclosure also relates to methods of shaping such compositions and articles produced from such compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.