Flame retardant copolyester compositions

US8969443B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8969443-B2
Application numberUS-201313970680-A
CountryUS
Kind codeB2
Filing dateAug 20, 2013
Priority dateSep 3, 2010
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to the combination of halogen-free flame retardant additives in a copolyester to improve the flame retardant properties of the copolyester composition while retaining impact properties, methods of making the copolyester composition and articles made from the copolyester composition. More specifically, the present invention relates to the use of a nitrogen containing flame retardant and a metal phosphorous-containing compound in copolyester compositions to improve the flame retardant properties while retaining impact properties, methods of making said copolyester compositions and articles therefrom.

First claim

Opening claim text (preview).

The invention claimed: 1. A copolyester composition comprising: (a) from greater than 85 to about 98 weight % of the copolyester, the copolyester comprising (i) a diacid component comprising from 70 to 100 mole % residues of terephthalic acid, from 0 to 30 mole % residues of a modifying aromatic diacid having from 8 to 12 carbon atoms, and from 0 to 10 mole % residues of an aliphatic dicarboxylic acid; and (ii) a glycol component comprising from 1 to 65 mole % cyclohexa…

Assignees

Inventors

Classifications

  • C08K5/0066Primary

    Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

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Frequently asked questions

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What does patent US8969443B2 cover?
The present invention relates to the combination of halogen-free flame retardant additives in a copolyester to improve the flame retardant properties of the copolyester composition while retaining impact properties, methods of making the copolyester composition and articles made from the copolyester composition. More specifically, the present invention relates to the use of a nitrogen containin…
Who is the assignee on this patent?
Eastman Chem Co
What technology area does this patent fall under?
Primary CPC classification C08K5/0066. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 03 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).