Patent · US Active

Foaming process for production of foam materials

US11904514B2 · kind B2 · utility

0Cited by

14References

13Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Thomas Richter · Wauseon, US
Andreas Liebe · Darmstadt, DE
Christian Traßl · Warmensteinach, DE
Florian Becker · Clamart, FR
Vincent Ma Junyong · Darmstadt, DE

Key dates

Filing date	Dec 19, 2019
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Aug 20, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2105/04
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A production process can produce foam materials from polymer compositions. This process involves preheating in the foaming of polymers containing blowing agents and subsequent foaming by a thermal process assisted by microwaves.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.