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Polymer-based molded article with minimal flame spread and smoke properties

Inactive Publication Date: 2005-12-15
MASCO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The present invention therefore provides a polymer-based component, which minimizes flame spread and smoke.

Problems solved by technology

Although producing a high quality molded component, such polymer-based components may not meet certain requirements for flame spread and smoke according to particularly strict building codes.
Because additives that reduce flame spread tend to increase smoke generation and vice-versa, the use of chemical additives to polymer-based components to control these two parameters has had limited success.

Method used

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  • Polymer-based molded article with minimal flame spread and smoke properties
  • Polymer-based molded article with minimal flame spread and smoke properties

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Embodiment Construction

[0011]FIG. 1 illustrates a general perspective view of a polymer based molded article 20. The molded article 20 is preferably a tub and shower surround, which is formed of multiple portions. Generally, a tub portion 22 receives wall portions 24 and 26 to form the molded article 20. It should be understood that any number of molded articles of any number of portions, such as shower bases, sinks, or other plastic faced components, will benefit from the present invention. Preferably, such components are relatively large bathroom-related fixtures.

[0012] Referring to FIG. 2, a sectional view through one of the portions 22, 24, 26 is illustrated. It should be understood that the sectional view may be taken anywhere within the portions 22, 24, 26. Each portion 22, 24, 26 preferably includes at least three layers: a cosmetic surface layer 28, an intermediate layer 30, and a backing layer 32.

[0013] Typically, each layer 28, 30, 32 is sprayed, in order, onto an open mold to build up the com...

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Abstract

A molded article includes at least three layers: a cosmetic surface layer, an intermediate layer and a backing layer. The intermediate layer is an energy absorbing layer between the surface layer and the backing layer which at least partially confines burning to the surface layer, where flame spread is controlled, and smoke is minimized by the composition of the intermediate layer.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to molded components and more particularly to polymer-based bath fixtures which minimize flame spread and smoke when subjected to combustion. [0002] Tub surrounds are positioned within a recess built around a bathtub or shower. Conventional modular tub / shower units often include a tub portion at the bottom and two or more wall portions. The whole structure is inserted into the wall recess to form a waterproof surround. The fully enclosed waterproof structure is highly advantageous in that it prevents the escape of water into the wall cavity despite the shower spraying water onto the surrounding walls. [0003] Tub and shower surrounds and other such polymer-based bath fixtures are typically molded through an open mold fiberglass reinforced plastic molding system. As the open molds transit the assembly line, spray stations perform particular spraying operation to produce the molded component. Such spray operations typical...

Claims

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Application Information

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IPC IPC(8): A47K3/00A47K3/30B65D1/00C08J5/00
CPCY10T428/1352A47K3/30
Inventor KAPELANSKI, SCOTTZIBRAT, STANISLAVLI PRETI, ALFREDO
Owner MASCO CORP
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