Patent ID: 9034452
Filing Date: 2015-05-19
Classification: A44B,B29C,B32B,B60N,Y10T

Abstract:
1. A male touch fastener strip comprising: an elongated base having a thickness and defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction across the base between longitudinal edges of the base; a field of male fastener elements each having a stem extending from a broad face of the base and a head at an upper end of the stem and overhanging the base for engaging fibers, the fastener element stems and broad face of the base together forming a unitary mass of resin; longitudinal barrier walls rising from the broad face of the base on either side of the field of male fastener elements; a pair of segmented walls rising from the broad face of the base, each segmented wall of the pair disposed laterally outboard of a respective nearest one of the longitudinal barrier walls, each segmented wall comprising a series of wall segments defining longitudinal gaps therebetween; wherein each segmented wall and its nearest longitudinal barrier wall define therebetween a foam relief space for receiving a foam material, each respective foam relief space having a volume per unit strip length; wherein each segmented wall defines a flow gap for allowing the foam material to enter the foam relief space, each respective flow gap having an area per unit strip length; and wherein the ratio of foam relief space volume per unit strip length and flow gap area per unit strip length is between about 0.02 and 0.80 inch.