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Long-fiber-reinforced flame-retardant polyesters
US8962717B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8962717-B2 |
| Application number | US-201313969743-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 19, 2013 |
| Priority date | Aug 20, 2012 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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Thermoplastic molding compositions comprising A) from 10 to 93% by weight of a thermoplastic polyester B) from 1 to 20% by weight of a phosphinic salt C) from 1 to 20% by weight of a nitrogen-containing flame retardant D) from 5 to 50% by weight of a long-fiber reinforcing material with fiber length from 2 to 25 mm and L/D ratio from 500 to 4000 E) from 0 to 50% by weight of other additives, where the total of the percentages by weight of components A) to E) is 100%.
First claim
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The invention claimed is: 1. A method for producing long-fiber-reinforced pelletized materials comprising pultrusion of a thermoplastic molding composition comprising A) from 10 to 93% by weight of a thermoplastic polyester B) from 1 to 20% by weight of a phosphinic salt C) from 1 to 20% by weight of a nitrogen-containing flame retardant D) from 5 to 50% by weight of a long-fiber reinforcing material with fiber length from 2 to 25 mm and L/D ratio from 500 to 4000 E) from 0 to 50% by weight of other additives, where the total of the percentages by weight of components A) to E) does not exceed 100%. 2. The method according to claim 1 , wherein component A) is a polyalkylene terephthalate. 3. The thermoplastic molding composition method according to claim 1 , wherein the ratio of B) to C) is from 1:1 to 5:1. 4. The thermoplastic molding composition method according to claim 1 , in which the particle size distribution value d 98 of component C) is <25 μm. 5. A long-fiber-reinforced pelletized material obtained from the method according to claim 1 . 6. A molding obtained from the pelletized materials according to claim 5 .
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- What does patent US8962717B2 cover?
- Thermoplastic molding compositions comprising A) from 10 to 93% by weight of a thermoplastic polyester B) from 1 to 20% by weight of a phosphinic salt C) from 1 to 20% by weight of a nitrogen-containing flame retardant D) from 5 to 50% by weight of a long-fiber reinforcing material with fiber length from 2 to 25 mm and L/D ratio from 500 to 4000 E) from 0 to 50% by weight of ot…
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C08K3/32. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 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).