Patent · US Expired

Perchloroethylene stabilization

US4942267A · kind A · utility

4Cited by

8References

8Claims

0Family size

Assignee

Occidental Chemical Corporation · US

Inventors

Roger W. Roark · Painesville, US
Glenn R. Cairns · Painesville, US
Edward A. Rowe · Grand Island, US

Key dates

Filing date	Jul 28, 1988
Grant date	Jul 17, 1990
Priority date	—
Expiry date	Jul 28, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C17/42
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Decomposition of perchloroethylene is prevented by the addition of a stabilizer system containing N-substituted cyclic alkyl amine, alcohol of 3-7 carbon atoms and olefin components. The stabilizer system is advantageous in that it does not contain any environmentally undersirable materials.

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