Articles comprising copolyesters produced with germanium catalyst
US-2024376258-A1 · Nov 14, 2024 · US
Flame retardant polylactic acid compounds
US9062201B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9062201-B2 |
| Application number | US-201214111232-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 12, 2012 |
| Priority date | Apr 15, 2011 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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A significant disadvantage of the use of polylactic acid (PLA), lack of flame retardance, has been overcome by the use of polyphosphonate-co-carbonate in combination with an impact modifier, a drip suppressant, and optionally, an epoxy functional styrene-acrylate oligomeric chain extender. The compound achieves a UL 94 rating of V-0 or V-1 and a Notched Izod value of more than about 5 ft-lbs/in. The compound also exceeds a threshold of 100° C. in heat deflection temperature.
First claim
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What is claimed is: 1. A heat resistant, flame retardant polylactic acid compound, comprising: (a) polylactic acid in an amount of from about 30 to 39 weight percent of the compound; (b) polyphosphonate-co-carbonate; (c) core/shell siloxane/(meth)acrylate copolymer impact modifier in an amount of from about 5 to about 12 weight percent of the compound; (d) drip suppressant in an amount of from about 0.1 to about 2 weight percent of the compound; and optionally (e) an oligo…
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- What does patent US9062201B2 cover?
- A significant disadvantage of the use of polylactic acid (PLA), lack of flame retardance, has been overcome by the use of polyphosphonate-co-carbonate in combination with an impact modifier, a drip suppressant, and optionally, an epoxy functional styrene-acrylate oligomeric chain extender. The compound achieves a UL 94 rating of V-0 or V-1 and a Notched Izod value of more than about 5 ft-lbs/in…
- Who is the assignee on this patent?
- Zhu Shixiong, Avakian Roger W, Polyone Corp
- What technology area does this patent fall under?
- Primary CPC classification C08L67/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 23 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).