Patent ID: 8747587
Filing Date: 2014-06-10
Classification: B32B,C08J,Y10T

Abstract:
1. A method for making a multi-layered material, comprising the following steps: (a) forming a third polymer mixture on a release paper, the third polymer mixture containing a third polymer resin; (b) drying the third polymer mixture to form a surface layer; (c) foaming a second polymer mixture and then forming the foamed second polymer mixture on the surface layer, the second polymer mixture containing a second polymer resin; (d) drying the second polymer mixture to form a second foamed layer, the second foamed layer having a plurality of second cells; (e) laminating a substrate on the second foamed layer, the substrate being a fabric; (f) foaming a first polymer mixture and then drying the foamed first polymer mixture to form a first foamed layer, the first polymer mixture containing a first polymer resin, the first foamed layer having a plurality of first cells, wherein the foaming method of step (c) is different from that of step (f), and the variation in size of the second cells is different from that of the first cells; and (g) forming the first foamed layer on the substrate to obtain a multi-layered material.