Phosphorous-containing flame retardants for polyurethane foams

US9023925B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9023925-B2
Application numberUS-201214001903-A
CountryUS
Kind codeB2
Filing dateMar 22, 2012
Priority dateMar 23, 2011
Publication dateMay 5, 2015
Grant dateMay 5, 2015

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Embodiments of the invention include a phosphorus containing flame retardant which may be the reaction product of a reaction mixture where the reaction mixture includes at least one active hydrogen-containing compound and at least one phosphorus containing compound. The at least one active hydrogen-containing compound is selected from the group of a first polyol having a hydroxyl functionality of at least 3, a polyamine having an amine functionality of at least 2, and an amino alcohol having a combined amine and hydroxyl functionality of at least 2. The at least one phosphorus containing compound has the general formula (1), (2) or combination thereof:

First claim

Opening claim text (preview).

The invention claimed is: 1. A phosphorus containing flame retardant comprising the reaction product of a reaction mixture, comprising: (1) at least one active hydrogen-containing compound that is: (a) a first polyol having a hydroxyl functionality of at least 5, (b) a polyamine having an amine functionality of 2 and the structure as given in Formula (II): H 2 N—(CH 2 ) n —[N(R)—(CH 2 ) p ] y —NH 2   (II) wherein n and p are independently integers from 2 to 6, R is a hydr…

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What does patent US9023925B2 cover?
Embodiments of the invention include a phosphorus containing flame retardant which may be the reaction product of a reaction mixture where the reaction mixture includes at least one active hydrogen-containing compound and at least one phosphorus containing compound. The at least one active hydrogen-containing compound is selected from the group of a first polyol having a hydroxyl functionality …
Who is the assignee on this patent?
Qi Yudong, Tai Xiangyang, Dow Global Technologies Llc
What technology area does this patent fall under?
Primary CPC classification C08K5/524. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 05 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).