Patent ID: 6756332
Filing Date: 2004-06-29
Classification: B32B,B60R,D04H,Y10S,Y10T

Abstract:
A laminate for use in making a thermoformed article, the laminate comprising:first and second strengthening layers and a core layer disposed between the strengthening layers, wherein the core layer comprises a batt of nonwoven thermoplastic fibers comprising: 20-50% by weight fine fibers with a denier in the range of 0.8-3.0; 10-50% by weight binder fibers for at least binding together the fine fibers; and other fibers having denier in the range of 4.0-15 denier, and wherein the first and second strengthening layers comprise a bait of nonwoven polymeric fibers comprising: more by weight coarser fibers than in the core layer; whereby the strengthening layers provide the predominant flexural rigidity for the laminate and the core layer provides the predominant sound absorption for the laminate.