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Fire-resistant fiber-containing article and method of manufacture

a fiber-containing article and fire-resistant technology, applied in the direction of weaving, other domestic articles, transportation and packaging, etc., can solve the problems of health or safety risks that might occur, agricultural fibers are inherently flammable,

Inactive Publication Date: 2006-08-17
HNI TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] It is thus another of the invention to provide an article that can be used in the manufacture of office furniture, partitions, and other structures, which article includes bast fibers as a component thereof yet which meets the standards for a Class A fire-resistance rating.

Problems solved by technology

Some have expressed concerns about health or safety risks that might occur during the manufacture of fiberglass articles.
Agricultural fibers are inherently flammable.

Method used

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  • Fire-resistant fiber-containing article and method of manufacture
  • Fire-resistant fiber-containing article and method of manufacture

Examples

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example

[0029] A fibrous mass is provided comprising about 20% by weight of polypropylene fibers and about 80% by weight of a natural fiber component, the component containing 50 percent by weight of kenaf fiber and 50 percent by weight of industrial hemp fiber. Sodium polyborate powder is blown through the mass. The mass is heated to a temperature of about 375°-380° F. for about 10-15 minutes in a conventional oven. The mass is compressed to a desired thickness and allowed to cool. The compressed mass is sprayed on all surfaces with a 40% by weight aqueous solution of sodium silicate, at about 1-2 oz. solution per square foot of surface area. The mass is then heated to a temperature of about 390° for about 1-2 minutes to drive off the water and allow the sodium silicate coating to set. The resulting article can be used in the manufacture of a structure having a flame spread index of less than 25 and a smoke generation index of less than 450, which meets the requirement for a Class A rated ...

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Abstract

A fire resistance article comprises a bast fiber component, a thermoplastic component that acts as a binder, and a first fire retardant component, the article having a coating of a second fire retardant component, such that the article can be used in the manufacture of structures having a Class A fire resistance rating. In one method of manufacture, a fibrous mass of the bast fiber component and the thermoplastic binder has the first fire retardant dispersed therethrough, and is then heated, compressed to a desired thickness and density, and coated with the second fire retardant component.

Description

[0001] This invention relates to a fire-resistant article comprising a portion of natural fibers. More particularly, this invention relates to a fire-resistant article having a portion of natural fibers and being suitable for use in the manufacture of fire-retardant structures, and to a method of manufacturing such an article. BACKGROUND OF THE INVENTION [0002] Fiberglass is well known for use as a component of office furniture, office partitions, and other structures used in office, school, commercial, and industrial settings. [0003] Fiberglass has many advantages for such applications. It is relatively inexpensive, it can be worked into a variety of shapes and densities, and it has good fire-resistance properties. [0004] Recently, however, concerns have been raised about such ubiquitous uses of fiberglass. Some have expressed concerns about health or safety risks that might occur during the manufacture of fiberglass articles. Concerns also have been raised about the use of certain...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D04H1/00
CPCB27N3/04B27N9/00D04H1/04D04H1/42D04H1/54D06M11/79D06M11/82D06M2200/30D06N3/0063E04B1/7658E04B1/941E04B2001/745D04H1/425D04H1/4291D04H1/4334D04H1/435Y10T442/2664Y10T442/2631Y10T442/2672Y10T442/2098Y10T428/249924Y02A30/244D04H1/43828D04H1/43835
Inventor CLINE, ANTHONY JOSEPH
Owner HNI TECH INC
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