Temperature stable polymeric blends for use in non-pneumatic tires

A non-pneumatic tire comprising a component made from a temperature stable polymeric blend comprising:

• a. a thermoplastic polyester consisting of a polyether-polyester block copolymer elastomer having:
• i. a Tg of about 50 to about 100° C., and
• ii. a melt temperature of about 200 to about 290, and
• b. a crosslinking compound comprising an epoxide compound or a siloxane compound, wherein the siloxane compound contains at least one unsaturated carbon-carbon bond or at least one sulfur atom,
• wherein the total amount of (a) and (b) is 100 parts and (b) is present in an amount of about 0.5 to about 15 parts and (a) is present in an amount of about 85 to about 99.5 parts,
• wherein no more than 5% by weight, based upon the total weight of (a) and (b), of a high temperature thermoplastic polymer having a Tg of 200° C. or higher and/or a melt temperature of 300° C. or higher is present in the blend, and
• wherein temperature stable refers to the ability of the blend to maintain at least 90% of its Modulus over a temperature range of −40 to 190° C., where Modulus refers to at least one of 50% Modulus or 100% Modulus.