Flame retardant film

A flame retardant film and film technology, applied in the field of flame retardant film, can solve problems such as heavy smoke, flame retardant compound health and environmental elimination

Active Publication Date: 2016-04-06
ILLINOIS TOOL WORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, halogenated materials tend to generate large amounts of smoke when burned
Another issue is that some of the more commonly used brominated flame retardant compounds are being phased out due to health and environmental concerns

Method used

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Examples

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Embodiment Construction

[0015] The present disclosure allows embodiments in various forms, and one or more embodiments are shown in the drawings and will be described below as follows, the present disclosure is to be considered as illustrative only and is not intended to The disclosure is limited to any particular embodiment described or illustrated.

[0016] Polyolefin films are made to meet the requirements of a flame spread index of less than 25 and a smoke formation index of less than 50. In an embodiment, the film is a thin film having a thickness of about 0.003 to 0.010 inches. One film can be made from high density polyethylene (HDPE). In an embodiment, magnesium hydroxide is used to reduce smoke generation without adversely affecting flame spread.

[0017] Table 1 below presents an example of a formulation for a 10 mil film that results in a Flame Spread Index of 15 and a Smoke Formation Index of 15. The film is shown as sample number 10 in Table 3 below.

[0018]

[0019] Table 1 - Re...

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Abstract

A flame retardant film is a thin flexible film formulated from about 60.0% to 87.0% polyolefin, and about 6% to 30% Mg(OH)2 flame retardant concentrate containing about 60% Mg(OH)2. The film exhibits a flame spread index (FSI) of no more than 20 and a smoke generation index of no more than 60 when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials.

Description

[0001] Cross-references to relevant application data [0002] This application claims the benefit and priority of US Provisional Patent Application Serial No. 61 / 869,436, filed August 23, 2013, the disclosure of which is incorporated herein in its entirety. Background technique [0003] All types of films are used in various industries. For example, films and sheets are used as steam jacket materials for pipes, insulating finishes for buildings, and sheathing for plenums / pipe plenums. Such films can be used as waterproof and / or air-impermeable membranes. These films prevent condensation from forming on the surfaces of pipes, equipment, buildings and components which, if not abated, could in due course have a detrimental effect on pipes, equipment and building components. Typically, these films are reinforced polymer and paper based films. [0004] A disadvantage of these films is that, in addition to their barrier properties, they must also fulfill certain flame-retardant p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/18B32B27/32C08J5/18
CPCB32B27/18B32B27/32C08J5/18C08J2323/06Y10T428/31913B32B27/08B32B2307/514B32B2323/043
Inventor 迈克尔·J·伦奇吉
Owner ILLINOIS TOOL WORKS INC
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