Patent · US Active

Use of mixtures of water and essential oil for separating multilayered composites for the segregated recycling of polymer/metal films

US11981115B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Joerg Buechner · Bensberg, DE
Christoph Thiebes · Cologne, DE
Thomas Fait · Troisdorf, DE
Oliver Kirstein · Wuppertal, DE

Key dates

Filing date	Mar 19, 2021
Grant date	May 14, 2024
Priority date	—
Expiry date	Mar 19, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/1911
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to the use of mixtures of water and essential oils selected from the group consisting of phenols, phenylpropanoids and furanocoumarins, for separating multilayered composites for the segregated recycling of polymer/metal films.

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