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Improved fire performance for wood veneer laminated ceiling tile

一种天花板、饰面层的技术，应用在建筑镶板领域，能够解决饰面层掉落、危及、助长火灾等问题

Active Publication Date: 2018-06-08
ARMSTRONG WORLD IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of building paneling has previously also had associated safety concerns, as the entire building paneling was either made of wood, increasing flammability concerns, or it could use exterior laminate construction, in which case the veneer layer Tend to delaminate under high heat, causing the finish to fall from the building paneling, endangering people below the building and / or further fueling the fire

Method used

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  • Improved fire performance for wood veneer laminated ceiling tile
  • Improved fire performance for wood veneer laminated ceiling tile
  • Improved fire performance for wood veneer laminated ceiling tile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0093] Experiment 1

[0094]A first experiment was carried out by preparing two building panels according to the following method. The wood veneer is bonded to the aluminum base layer using a hot melt polyurethane adhesive containing a flame retardant. The wood veneer was approximately 30 mils thick, while the aluminum base was approximately 27 mils thick. For one of the building panels, the exposed upper surface of the wood veneer layer is coated with a conventional UV-curable top coat comprising an acrylate functional polymer, resulting in a top coat thickness of from about 1 mil to about 2 mils. in the mil range. Another building panel was left uncoated. Each building board was then subjected to an ASTM E-84 test to measure surface flame spread and smoke density. The results are provided in Table 1 below.

[0095] Table 1

[0096]

[0097] As shown in Table 1, the presence of a UV-curable coating (the traditional coating option for this product) did not alte...

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Abstract

The present invention is directed to a building panel having a laminate structure, the laminate structure including a topcoat layer comprising a first intumescent composition, a cellulosic veneer layer, an adhesive layer formed from an adhesive composition comprising a second intumescent composition, and a metallic substrate layer and wherein the cellulosic veneer layer is at least partially bonded to the metallic substrate by the adhesive layer. The resulting building panel exhibits superior flame retardancy resulting in a Class A fire rating, according to ASTM E-84.

Description

[0001] Cross References to Related Applications [0002] This application is a PCT International Application of US Provisional Patent Application No. 62 / 247,569 filed on October 28, 2015. The disclosures of the aforementioned applications are hereby incorporated by reference. Background technique [0003] Building products for indoor environments have trade-offs in terms of cosmetic value, material cost, structural integrity and fire safety. Previously, maximizing one or two of these benefits required sacrificing the rest. For example, building panels using natural materials (eg, natural grain from real wood as compared to imitation grain from printed wood grain) may have superior aesthetic value. However, this type of building paneling has previously also had associated safety concerns, as the entire building paneling was either made of wood, increasing flammability concerns, or it could use exterior laminate construction, in which case the veneer layer Tend to delaminate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B9/04E04B1/94C09K21/00B32B37/12
CPCE04B9/225E04B9/34B32B9/005B32B9/042B32B15/18B32B21/02B32B21/04B32B21/14B32B2250/02B32B2255/26B32B2255/28B32B2307/304B32B2307/412B32B2307/50B32B2307/732B32B2607/00B32B7/12B32B15/10B32B15/20B32B37/1207B32B2037/1215B32B2255/08B32B2307/3065B32B2307/73B32B2311/24B32B2419/00E04B9/045E04F13/0866E04B9/04B32B2307/7246E04F13/077E04F13/12
Inventor 玛莎·S·比舍尔肯尼思·P·克雷尔利达·卢米歇尔·X·王
Owner ARMSTRONG WORLD IND INC