Patent · US Expired

Method for absorbing contaminants

US6818590B2 · kind B2 · utility

0Cited by

13References

11Claims

0Family size

Assignee

Ticona LLC · US

Inventors

Freddy Helmer-Metzmann · Essenheim, DE
Alexandra Jacobs · Niedernhausen, DE

Key dates

Filing date	Apr 30, 2002
Grant date	Nov 16, 2004
Priority date	—
Expiry date	May 15, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F1/285
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to an absorbent comprising at least one cycloolefin copolymer which contains polymerized units which are derived from at least one cyclic and at least one acyclic olefin.

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