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US-2024400829-A1 · Dec 5, 2024 · US
Flame-retardant polycarbonate compositions
US9145490B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9145490-B2 |
| Application number | US-201313780084-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2013 |
| Priority date | Feb 28, 2013 |
| Publication date | Sep 29, 2015 |
| Grant date | Sep 29, 2015 |
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Abstract
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The present invention relates to flame-retardant polycarbonate compositions and methods for increasing the flame-retardancy of polycarbonate compositions. An α,ω-alkoxy phenyl phenyloligosiloxane compound and an alkali metal sulfonate salt are added to the polycarbonate compositions. The addition of the α,ω-alkoxy phenyl phenyloligosiloxane compound and the alkali metal sulfonate salt produces a polycarbonate composition having a flame-retardance rating of UL 94V-0 at 2 mm thickness or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for increasing the flame retardancy of a polycarbonate composition, the method comprising adding about 0.1 wt. % to about 2.0 wt. % 1,3-dimethyltetraphenyldisiloxane to the polycarbonate composition; and adding about 0.1 wt. % to about 1.0 wt. % perfluorobutanesulfonate alkali metal salt to the polycarbonate composition; wherein the wt. %, all instances, are based on the total weight of the polycarbonate, the 1,3-dimethyltetraphenyldisiloxane, a…
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- C08K5/5419Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9145490B2 cover?
- The present invention relates to flame-retardant polycarbonate compositions and methods for increasing the flame-retardancy of polycarbonate compositions. An α,ω-alkoxy phenyl phenyloligosiloxane compound and an alkali metal sulfonate salt are added to the polycarbonate compositions. The addition of the α,ω-alkoxy phenyl phenyloligosiloxane compound and the alkali metal sulfonate salt produces …
- Who is the assignee on this patent?
- Bayer Materialscience Llc
- What technology area does this patent fall under?
- Primary CPC classification C08K5/5419. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).