Patent · US Expired

Composition and a method for covering the sump in cavities

US4618282A · kind A · utility

1Cited by

6References

14Claims

0Family size

Assignee

Ruhrgas Aktiengesellschaft · DE

Inventors

Karl F. L. Gloria · Hattingen, DE
Alexandru B. Costinescu-Tataranu · Essen, DE
Wilhelm Schuster · Linz, AT
Jurgen Wittekind · Frankfurt am Main, DE

Key dates

Filing date	Aug 24, 1983
Grant date	Oct 21, 1986
Priority date	—
Expiry date	Aug 24, 2003

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J19/16
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed is a composition and a method for covering the sump in cavities serving to store gaseous or liquid, non-aqueous substances, using a so-called geologically old crude oil to which is added a reactive component which combines with the functional groups thereof and blocks them. Particularly suitable reactive components are isocyanates and epoxy compounds.

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