Patent ID: 6253528
Filing Date: 2001-07-03
Classification: E04D,Y10T

Abstract:
A process of adhering a first membrane and an overlapping second membrane by applying a TPO or TPE adhesive, the process comprising the steps of:providing a first membrane of ethylene propylene diene terpolymer;then providing a second membrane of ethylene propylene diene terpolymer over the first membrane so as to overlap portions of the first membrane;providing an apparatus including a chassis movably supported by wheels and an extruder attached to the chassis including a nozzle having an outlet, the apparatus including a means for heating the TPO or TPE to melt the TPO or TPE adhesive;heating the TPO or TPE adhesive within the apparatus to melt the TPO or TPE adhesive;positioning the outlet between the overlapping first and second membranes; and forcing the melted TPO or TPE adhesive through the outlet from the apparatus to between the overlapping first and second membranes to apply the TPO or TPE adhesive;and then pressing the overlapping first and second membranes having adhesive therebetween to hold the overlapping portions of the first and second membranes together.