	US 12,331,188 B2
	Temperature stable polymeric blends for use in non-pneumatic tires
Jared J. Griebel, Orange Village, OH (US); and Hyeonjae Kim, Copley, OH (US)
Assigned to Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
Appl. No. 17/597,791
Filed by Bridgestone Americas Tire Operations, LLC, Nashville, TN (US)
PCT Filed May 18, 2020, PCT No. PCT/US2020/033385 § 371(c)(1), (2) Date Jan. 24, 2022, PCT Pub. No. WO2021/021273, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/879,593, filed on Jul. 29, 2019.
Prior Publication US 2022/0243054 A1, Aug. 4, 2022
Int. Cl. C08L 67/02 (2006.01); B60C 1/00 (2006.01); B60C 7/14 (2006.01)

CPC C08L 67/025 (2013.01) [B60C 1/00 (2013.01); B60C 2001/0091 (2013.01); B60C 7/146 (2021.08)]

20 Claims

1. A temperature stable polymeric blend comprising:

a. a thermoplastic polyester elastomer having at least one of:

i. a Tg of about 50 to about 100° C., or

ii. a melt temperature of about 200 to about 280,

b. a high temperature thermoplastic polymer having at least one of:

i. a Tg of about 200 to about 300° C., or

ii. a melt temperature of about 300 to about 400° C.,

c. a compatibilizer resin,

d. a delayed crosslinking agent, and

e. an activator,

wherein the total amount of (a) and (b) is 100 parts, (a) is present in an amount of 30-95 parts, and (b) is present in an amount of 5-70 parts.