Patent · US Expired

Resins for separating heavy metals consisting of thiourea-group-containing macroporous vinyl aromatic crosslinked matrixes

US3994719A · kind A · utility

23Cited by

4References

16Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Herbert Corte
Harold Heller · Narberth, US
Michael Lange · Darmstadt, DE
Otto Netz

Key dates

Filing date	Mar 20, 1974
Grant date	Nov 30, 1976
Priority date	—
Expiry date	Mar 20, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2800/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention concerns new, crosslinked, macroporous, vinyl-aromatic plastic materials containing thiourea groups, to processes for their production and to their use for adsorbing metal compounds, especially noble metal and mercury compounds.

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