CPC A43B 13/32 (2013.01) [A43B 9/12 (2013.01); A43B 13/02 (2013.01); A43B 13/12 (2013.01); C08K 5/092 (2013.01); C09J 5/06 (2013.01); C09J 11/06 (2013.01); C09J 175/04 (2013.01); C08K 5/09 (2013.01); C09J 2301/416 (2020.08); C09J 2301/502 (2020.08)] | 20 Claims |
1. An article of footwear or portion thereof comprising a first component, a second component, and an adhesive adhesively bonding the first component to the second component,
wherein the second component comprises a thermoplastic polyurethane, a thermoplastic rubber, a vinyl acetate, a polyamide, or a polyester; and
wherein the adhesive comprises:
a polymeric adhesive matrix, wherein the polymeric adhesive matrix comprises at least one polymer selected from a group consisting of a polyurethane, a polychloroprene, a latex, a polystyrene, a polyamide, a polyolefin, a polyacrylate, and any combination thereof; and
a carboxylic acid or a salt thereof dispersed within the polymeric adhesive matrix;
wherein the carboxylic acid has a structure according to the following formula or a derivative thereof
where n is 2, and
wherein the carboxylic acid or a salt thereof is present in an amount greater than 2.5% to about 15% by weight based upon a total weight of the adhesive, and
wherein, after the adhesive has been exposed to microwave radiation having a frequency of about 2.4 GHz and a power level of at least 900 W for a period of time of at least 60 seconds, the adhesive has a bond strength that is less than 30% of a reference bond strength for the otherwise same adhesive except without the carboxylic acid or salt thereof, when exposed to about the same frequency of microwave radiation for about the same period of time, and when used to bond the same materials as the first component and the second component and measured under the same conditions.
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