US 12,661,863 B2Granted

TPU for inmold assembly of an outer shoe sole on eTPU

AssigneeBASF SE

InventorsFrank Schaefer, Elmar Poeselt, Florian Schulz

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Abstract

A molded article (M) contains a molded article (M-1) made of a thermoplastic elastomer (TPE-1) and a foamed pellet material made of a thermoplastic elastomer (TPE-2). The molded article (M-1) has a softening temperature TS (TPE-1) that deviates by no more than 25° C. from the processing temperature TP (TPE-2) of the thermoplastic elastomer (TPE-2). The softening temperature is determined by TMA in accordance with ISO 11359-3:2014. A process can be used for producing the molded article. The molded article can be used for application in the sports, industry, medicine, sports medicine, safety, automotive and consumer goods field, especially as a shoe sole, a part of a shoe sole, a bicycle saddle, a cushioning, a mattress, an underlay, a grip, a protective film, or a component in automobile interiors and exteriors.

Claims17

Dependent claims

A molded article (M), comprising:

a molded article (M-1) made of a thermoplastic elastomer (TPE-1), and
a foamed pellet material made of a thermoplastic elastomer (TPE-2),
wherein the molded article (M-1) has a softening temperature TS (TPE-1) that deviates by no more than 25° C. from a processing temperature range TP (TPE-2) of the thermoplastic elastomer (TPE-2), the softening temperature TS (TPE-1) being determined by thermomechanical analysis (TMA) in accordance with ISO 11359-3:2014,
wherein the processing temperature range TP (TPE-2) is a range from 100 to 170° C.,
wherein the thermoplastic elastomer (TPE-1) is in compact form, and
wherein the thermoplastic elastomer (TPE-1) and the thermoplastic elastomer (TPE-2) are each independently selected from the group consisting of a thermoplastic polyurethane, a thermoplastic polyetheramide, a polyetherester, and a polyesterester.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/904,918Filed 26 Feb 2021
Priority: EP 2016002128 Feb 2020
Published: US 2023/0087981 A123 Mar 2023
Granted: 23 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification30 codes

B32B 5/18
Layered products characterised by the non- homogeneity or physical structure , i.e. comprising a fibrous, filamentary, particulate or foam…
A43B 13/04
Characterised by the material: plastics, rubber or vulcanised fibre
A43B 13/187
Resilient soles: resiliency achieved by the features of the material, e.g. foam, non liquid materials
B29D 35/122
Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique: soles