Patent ID: 7883596
Filing Date: 2011-02-08
Classification: B29C,B29K,B29L,B32B,B60N,D06N,Y10T

Abstract:
1. A process for making a noise absorber carpet comprised of a fabric layer portion and a resinous backing layer portion, comprising the substantially concurrent steps of: providing a backing roll and cooling the backing roll to a temperature from about 10 to about 50 degrees Celcius; extruding hot backing resin from a die in the form of a continuous sheet onto the cooled backing roll to form a resinous backing layer; providing a perforation roll including a plurality of perforating pins and positioning the perforation roll in proximity to the backing roll; perforating the resinous backing layer by passing the resinous backing layer between the perforation roll and the backing roll while pressing the perforating pins against the resinous backing layer on the backing roll; providing a fabric feeder roll for feeding a continuous fabric sheet onto the backing roll; heating the continuous fabric sheet; heating the perforated backing layer; and press bonding the heated fabric sheet and the heated perforated backing layer together to form a continuous noise absorber carpet.