OUTSOLE AND METHOD OF MAKING AN OUTSOLE
FIG7 is a diagram of the average mud pull-off force exhibited by articles or components of articles that comprise the elastomeric material of the present disclosure
Referring now to FIG7 each of the samples (Control # 1; Run #'s 1-4) were tested 30 times using the Mud Pull-Off Test protocol described above. Each of the test samples were prepared and soaked in water for a period of 24 hours prior to conducting the mud pull-off test. The control sample comprising only a standard TPU (Control 1) required a mud pull-off load or force ranging from about 1 Newton (N) to about 10 N with an overall average of about 6 Newton. In comparison, each of Run #'s 1-4, which included an elastomeric material according to the present disclosure exhibited a mud pull-off force that was less than about 0.3 N with an average mud pull-off force on the order of about 0.01 N for Run #1, about 0.05 N for Run #2, about 0.20 N for Run #3, and about 0.1 N for Run #4. This example demonstrates that the mud pull-off force exhibited by a component comprising the elastomeric material of the present disclosure is lower than that expected for a component prepared solely with a standard thermoplastic polyurethane.Table 1wt. percent (phr) Polymeric Hydrogel in the Elasomeric MaterialType of Polymeric HydrogelControl 1100 percentDesmopan 8795A TPU (Covestro AG, Leverkusen, Germany)Run 114 wt. percent (25 phr)Estane® ALR-G2000 Hydrogel TPU Material,(Lubrizol Advanced Materials Inc., Cleveland, OH) and cured rubberRun 257 wt. percent (200 phr)Estane® ALR-G2000 Hydrogel TPU Material (Lubrizol Advanced Materials Inc., Cleveland, OH) and cured rubberRun 324 wt. percent (50 phr)Estane® ALR-L400 Hydrogel TPU Material (Lubrizol Advanced Materials Inc., Cleveland, OH) and cured rubberRun 457 wt. percent (200 phr)Estane® ALR-L400 Hydrogel TPU Material (Lubrizol Advanced Materials Inc., Cleveland, OH) and cured rubber
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['4. The outsole (15) of any one of claims 1 to 3, wherein the first elastomeric material (110; 204): - has a water cycling weight loss of less than 15 weight percent based on a total weight of the first elastomeric material (110; 204) present in the outsole (15); - has a water uptake capacity of at least 80 percent by weight based on the total weight of the first elastomeric material (110; 204) present in the first portion; and/or - includes from 30 weight percent to 70 weight percent of the first polymeric hydrogel based on a total weight of the first elastomeric material (110; 204) present in the first portion.']