US 2026/0061671 A1 · COMFORT eTPU

Abstract

Molded articles contain a foam composed of a thermoplastic elastomer (TPE-1). The foam has a storage modulus (G modulus) at 25° C. and 1 Hz within the range from 0.01 to 0.5 MPa, a molding density within the range from 20 to 400 kg/m3, and a comfort factor of greater than 4. A process produces molded articles of this kind, and the molded article can be used for producing floors, mattresses, seating furniture, bicycle saddles, car seats, motorcycle seats, components of a shoe, shoe inserts, packaging, shock absorbers, protectors, fall protection mats, elastic insulating material, or sealing material.

Claims11

Dependent claims

A molded article, comprising:

a foam composed of a thermoplastic elastomer (TPE-1), wherein the foam has a storage modulus (G modulus) at 25° C. and 1 Hz within a range from 0.01 to 0.5 MPa, determined by a dynamic mechanical analysis (DMA) in accordance with DIN EN ISO 6721-1-7:2018-03, and a molding density within a range from 20 to 400 kg/m3,
wherein the foam is a foamed pellet material, and
wherein the thermoplastic elastomer (TPE-1) comprises a thermoplastic polyurethane.

Dependencies are inferred from the claim text.

Facts

Application

19/382,715Filed 7 Nov 2025

Priority

EP 19208917.513 Nov 2019

Published

5 Mar 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

B29C 44/355
Component parts; Details or accessories: characteristics of the foam, e.g. having particular surface properties or structure
B29C 44/04
For articles of definite length, i.e. discrete articles: consisting of at least two parts of chemically or physically different materials, e.g.…
C08J 9/16
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof: making expandable particles
C08J 9/232
Forming foamed products: by sintering expandable particles

COMFORT eTPU

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COMFORT eTPU

Life of this patent

Abstract

Claims11