Methods and systems for fabricating fire retardant materials

a technology of fire retardant materials and methods, applied in the field of materials fabrication, can solve the problems of lack of materials, and achieve the effect of reducing the cost of materials

Inactive Publication Date: 2008-06-26
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these materials have all been lacking in at least

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  • Methods and systems for fabricating fire retardant materials
  • Methods and systems for fabricating fire retardant materials

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Embodiment Construction

[0011]A method for fabricating fire retardant parts has been developed using a selective laser sintering (SLS) process. Also described is a material that results from the SLS process. The resulting product includes a brominated hydrocarbon compound powder mixed with a nylon 11 (sometimes referred to as a polyamide-11) powder to fabricate parts using one or both of the SLS process and a roto-molding processes. This fabrication process allows functional fire retardant parts to be made while still maintaining the mechanical properties needed for aerospace and other functional uses. Previous attempts to make fire retardant parts has resulted in either an inability to process the powders in the SLS process or in degraded mechanical properties of the fabricated parts.

[0012]FIG. 1 is a depiction of a system 10 for forming objects from the above described powder combination. In the illustrated embodiment, system 10 includes a part bed 12, a mechanism 14 for directing energy onto a surface 1...

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Abstract

A fire retardant material is described that includes a polyamide and a brominated hydrocarbon. The brominated hydrocarbon makes up between about two percent and about 25 percent of the fire retardant material.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of Provisional Patent application Ser. No. 60 / 871,374, filed Dec. 21, 2006, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]This invention relates generally to material fabrication, and more specifically, to methods and systems for fabricating fire retardant materials. Particularly the methods generally describe solid freeform fabrication of three-dimensional objects, specifically materials and techniques for forming these three dimensional objects.[0003]Selective laser sintering (SLS) is a process for generating a material from a powdered compound. In the SLS process, the powdered compound is distributed onto a surface, and a device, such as a laser, is directed onto at least a portion of the powder, fusing those powder particles together to form a portion of a sintered material. Successive layers of the powder are distributed onto the surface, and the laser s...

Claims

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Application Information

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IPC IPC(8): C08K5/02
CPCB29C67/0077Y10T428/25B29K2995/0016C08K5/02C08K5/06C08L77/00C08L77/02B29K2077/00Y10T428/2982C08L2666/06B29C64/153Y10T428/31743Y10T428/31728Y10T428/31725B33Y70/00
Inventor BOOTH, RICHARD BENTONTHORNTON, BRUCE CARYVANELLI, DONALD LEWISGARDINER, MARTHA LEIGH
Owner THE BOEING CO
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