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Bromine-free fire retardant (FR) agents capable of using cyclization mechanism

A technology of cyclization, cyclization reaction, applied in the direction of protective devices against harmful chemical agents, etc., can solve problems such as adverse health outcomes, adverse development of thyroid, reproductive and neurological effects, etc.

Inactive Publication Date: 2016-05-18
EMPIRE TECH DEV LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, halogenated FR agents have been found to be persistent organic pollutants that exhibit serious adverse health outcomes such as adverse developmental, endocrine, thyroid, reproductive and neurological effects

Method used

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  • Bromine-free fire retardant (FR) agents capable of using cyclization mechanism
  • Bromine-free fire retardant (FR) agents capable of using cyclization mechanism
  • Bromine-free fire retardant (FR) agents capable of using cyclization mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Example 1. Synthesis of Test Articles Comprising Flame Retardant Compositions

[0097] Articles were produced by uniformly mixing 5 grams of flame retardant compound with 45 grams of polymer powder to form a mixture. Spread the mixture into a uniform layer in the mold. The mixture in the mold is placed on the hot plate of the press, which is heated to a temperature close to the melting temperature of the polymer. A mold lid is placed on top of the mold and the mixture is allowed to set under pressure into a sheet. A control article (I) was prepared using 50 grams of polyethylene without additives. A control article (II) was prepared using 4 grams of decabromodiphenyl ether (DecaDBE), 44 grams of polyethylene, and 2 grams of antimony trioxide. Prepare three test samples, the first test sample uses 45 grams of polyethylene and 5 grams of ornithine hydrochloride, the second test sample uses 45 grams of polyethylene and 5 grams of sodium salt of pantothenic acid, and the...

Embodiment 2

[0098] Example 2. Testing of flammability characteristics

[0099] The flammability characteristics of the various polymer / flame retardant compound test articles and control articles prepared in Example 1 were measured and the results compared. Two test programs are used:

[0100] Initial flammability testing procedure using a chemical exhaust hood:

[0101] Mark samples of the test and control articles (about 125 mm long x about 13 mm wide x about 3 mm thick) with lines at 25 mm and 100 mm from the first end of each sample to be ignited, as Figure 1(B) with 1(C) displayed in . Clamp the sample at the opposite second non-labeled end, as in Figure 1(B) with 1(C) , and place it in a chemical exhaust hood as shown in Figure 1(A). The sample was ignited at the first end using a propane torch, as shown in Figure 1(B). If the flame extinguishes after ignition and the flame front does not reach the 25 mm mark, mark the samples as "self-extinguishing" and for these samples m...

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Abstract

Provided herein are fire retardant compounds capable of undergoing a cyclization reaction to provide an elimination product and a cyclization product, as described herein. Also provided are compositions, polymers and articles including a fire retardant compound, and processes for preparing the compositions and the articles.

Description

technical field [0001] The present technology generally relates to methods and compositions related to flame retardants. Background technique [0002] The following description is provided to assist the reader in understanding the present invention. None of the information presented or references cited is admitted to be prior art on the present technology. [0003] Flame retardant (FR) agents are used to reduce the flammability of certain components, such as textiles and plastics. Halogenated compounds are the most commonly used type of FR agent. Brominated flame retardants, such as tetrabromobisphenol-A (TBBPA), hexabromocyclododecane (HBCD), and decabromodiphenyl ether (decyl-BDE), have long been favored for their performance and cost. However, halogenated FR agents have been found to be persistent organic pollutants that exhibit serious adverse health outcomes such as adverse developmental, endocrine, thyroid, reproductive and neurological effects. The US Environmenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/00A62D101/00C08K3/32
CPCC08K5/0066C08K5/175C08K5/20C08K5/31C09K21/06C09K21/10C08K2201/019
Inventor J·瓦尔纳P·唐A·斯图尔特C·凯利
Owner EMPIRE TECH DEV LLC
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