Thermoformable acoustic sheet

Details Thermoformable acoustic sheet Thermoformable acoustic sheet

2007-06-05

2007-06-05

Edwards, N. (Department: 1774)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

C418S137000, C181S284000, C181S286000

Reexamination Certificate

active

10333385

ABSTRACT:
A thermoformable acoustic sheet formed by a compressed fibrous web including high melt and adhesive thermoplastic fibres in which the adhesive fibres are at least partially melted so that in the compressed web the adhesive fibres at least partially coat the high melt fibres and reduce the interstitial space in the fibre matrix. Also included is a method of producing a thermoformable acoustic sheet which includes the steps of heating a fibre web including high melt and adhesive thermoplastic fibres to at least partially melt the adhesive fibres and compressing the web to form a sheet so that the adhesive fibres at least partially coat the high melt fibres to reduce the interstitial space in the fibre matrix.

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Samples of acoustic materials as summarized in Table 1 of Decision of a Delegate of the Commissioner of Patents of Australian Patent Office issued on Feb. 24, 2006, for Application No. 2003100331 (Australian counterpart application of present application).

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