Foam laminate product and process for production thereof

Details Foam laminate product and process for production thereof Foam laminate product and process for production thereof

2011-03-08

2011-03-08

Vo, Hai (Department: 1788)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

C428S319300, C428S319700, C428S074000, C428S076000, C296S214000, C296S039100, C296S187050

Reexamination Certificate

active

07901765

ABSTRACT:
A laminate product comprising a foam core having a pair of opposed major surfaces and a cover layer secured with respect to each major surface is described. The cover layer is essentially free of fibreglass and comprises a polymeric substrate having disposed therein a plurality of porous material layers. It has been found that the use of fibreglass as a reinforcing material (and other sheet materials having a tensile modulus of greater than or equal to about 0.5 GPa when measured pursuant to ASTM D 5034) in a foam laminate product can be avoided by using a porous material layer in place of the fibreglass. In a preferred embodiment of the invention, the porous material layer has a tensile modulus less than that of fibreglass mat yet can be used to produce a foam laminate product having significantly higher strength properties.

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Polyurethane Foam as an Integral “Core” Component of Automotive Headliner by I. Dolgopolsky and J.A. Duley, Polyurethanes Expo '99, Sep. 12-15, 1999.

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