	US 12,404,402 B2
	Foamed composition
Peter Roozemond, Echt (NL); Nancy Eisenmenger, Echt (NL); and Tom Antonius Philomena Engels, Echt (NL)
Assigned to ENVALIOR B.V., Geleen (NL)
Appl. No. 17/417,020
Filed by DSM IP Assets B.V., Heerlen (NL)
PCT Filed Dec. 19, 2019, PCT No. PCT/EP2019/086333 § 371(c)(1), (2) Date Jun. 21, 2021, PCT Pub. No. WO2020/127753, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 18215814 (EP), filed on Dec. 22, 2018; and application No. 19163567 (EP), filed on Mar. 18, 2019.
Prior Publication US 2022/0073730 A1, Mar. 10, 2022
Int. Cl. A43B 13/04 (2006.01); A43B 13/18 (2006.01); A43B 17/14 (2006.01); C08G 63/672 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/18 (2006.01); C08J 9/232 (2006.01); C08L 67/02 (2006.01)

CPC C08L 67/025 (2013.01) [A43B 13/04 (2013.01); A43B 13/187 (2013.01); C08J 9/122 (2013.01); C08J 9/18 (2013.01); C08J 2203/06 (2013.01); C08J 2207/00 (2013.01); C08J 2367/02 (2013.01); C08J 2371/02 (2013.01)]

10 Claims

1. A foamed thermoplastic elastomer composition comprising:

a thermoplastic copolyester elastomer which comprises hard segments comprised of polybutylene terephthalate and soft segments comprised of polytetramethylene oxide, wherein

the foamed thermoplastic elastomer composition has a density between 0.1 to 0.7 g/cm³and a relative solution viscosity (RSV) of at least 4.1 as measured according to ISO 1628-5:2015, and wherein

the foamed thermoplastic elastomer composition has no visible cracks.